Discrimination and Back-up protection

12/1Siemens NS PS · 2001

12Discrimination andBack-up Protection

Introduction 12/2Discrimination 12/3Current discrimination, time discrimination 12/4Back-up protection 12/5Discrimination limitsSeries circuit-breakers – miniature circuit-breakers 12/6,

12/25Series circuit-breakers – circuit-breakers 12/10,

12/26Series miniature circuit-breakers – miniature circuit-breakers 12/24Back-up protection valuesSeries circuit-breakers – miniature circuit-breakers 12/30Series circuit-breakers – circuit-breakers 12/30

titel_12.fm Seite 1 Donnerstag, 15. Februar 2001 8:00 08

12/2 Siemens NS PS · 2001

It is not the performance of an individual component that determines the reliability of a low-voltage system, but rather the “teamwork” of all such com-ponents.

Optimal cooperation of switch-ing devices depends on dis-criminative line and device pro-tection. Each feeder and each device must be protected as well as possible against over-load and short-circuit, without being adversely affected by any switching operations

intended to protect the rest of the system.

When a system is planned, it is customary to select protective devices with breaking capaci-ties to suit the maximum possi-ble short-circuit currents at the points of installation.

IEC and VDE standards allow back-up protection of a switch-ing device by one of the upstream protective devices with an appropriate switching capacity, if thereby both the

feeder and the downstream protective device are protected.

This means in practical terms that at a point in the distribution system with a possible short-circuit current of e.g. 50 kA, a cost-effective protective device with a breaking capacity of only 20 kA can also be used, entail-ing however other advantages (e.g. less space required and better protection), if it is given back-up protection by an upstream device with a break-ing capacity of at least 50 kA.

Discriminative switching with SIEMENS devices means: maxi-mum possible availability of supply, with at the same time a high degree of system and device protection by way of specific shutdown of the faulty circuit without affecting the other loads.

Discrimination and Back-up Protection

Introduction

The internet address “www.sie-mens.de/energieverteilung” provides you with information on “project planning aids” and with the free software version “KUBS plus” (short-circuit and back-up protection program for calculating short-circuit values, rating cables and conductors and selecting short-circuit breakers) to be down-loaded.

nsk12_02.fm Seite 2 Freitag, 16. Februar 2001 9:40 09


12


Discrimination

In series-connection of circuit-breakers, protection against overload and short-circuit is referred to as “discriminative” if, in the direction of power flow, only that device upstream of the fault is tripped.

Current discriminationWith overload, the discrimina-tion can be worked out from a comparison of the time/current characteristics. With short-circuit, this comparison pro-duces values that are too low. The reason for this is the behav-iour of the releases in the event of short-circuit currents, which deviates from the behaviour in the long-time range, i.e. in the event of overload (Fig. 12/1).

With adequately different short-circuit currents at the installation points of two circuit-breakers, the instantaneous short-circuit releases can gen-erally be set so that in the event of short-circuit after the down-stream switch, only the latter operates.

With almost identically high short-circuit currents at the installation points of the circuit-breakers, grading of the operat-ing currents of the short-circuit releases allows discrimination only up to a certain short-circuit current.

This current is referred to as the discrimination limit.

occurrences at the installation point.

If the short-circuit current worked out at the installation point lies above the discrimina-tion limit, discriminative trip-ping by the downstream switch is assured only up to the value in the table. The planner must assess whether the value can be considered adequate, as the probability of, for example, the

maximum short-circuit current occurring is low. Otherwise a switch combination must be selected, with a discrimination limit higher than the maximum short-circuit current.

In = 10 A

I"k = 20 kA

Ue = 400 V

= 1600= 120

= 120 A

= 1600 AI>

I>

3RV

3VF

ANSK-8220a

In = 160 A

I"k = 6 kA

I

I>3RV

I>

3VF

Discrimina-tion limitworked outby tests5 kA

Opening time

Current

Discrimination limit fromcomparison of characteristics1600 - 20% = 1280 A

Tripping characteristics for circuit-breakersIn = rated currentI"k= short-circuit currentI> = repsponse current

Fig. 12/1 Example of the effect of discrimination of the selection of short-circuit breakers

The limit values for discrimina-tion are shown in the tables on Pages 12/6 to 12/29.

If the value worked out from the short-circuit calculation (e.g. to DIN VDE 0102) at the installa-tion point of the downstream switch lies below the discrimi-nation limit read off from the table for the chosen combina-tion, discrimination is assured for all possible short-circuit




Current discrimination,time discrimination

3VF current-limiting circuit-breakers for distribution sys-tem protection to IEC 60 947

The 3VF circuit-breakers are available in various short-circuit breaking capacities. To eliminate the need to create a table for every breaking capac-ity where the discrimination limit is dependant on the breaking capacity, the discrimination limit is given in the sequence e.g. 40/70/100 kA. The correspond-ing value is dependant upon the breaking capacities of the upstream and downstream breakers. Decisive is always the smallest value.

Upstream circuit-breaker

kA 100 70 40 70

Downstream circuit breaker

kA 40 100 100 70

Discrimination limit

kA 40 70 40 70

Time discrimination

Another method of assuring discrimination in the event of almost identically high short-circuit currents at the installa-tion points is time discrimina-tion. The upstream breaker requires time-delay short-cir-cuit releases, so that in the event of a fault only the down-stream breaker isolates the part of the system affected by the fault.

Both the release delays and the operating currents of the short-circuit releases are graded.

In order to avoid undesirably long tripping times with series-connection of several circuit-breakers, SIEMENS has devel-oped microprocessor-driven „short-time grading control“ (ZSS) for the 3WN/3WS circuit-breakers.

This control permits reduction of the tripping delay time to a maximum of 50 ms for the breaker upstream of the short-circuit.

td = Max. operative timeof the blocking signal ordelay time in the event ofnot-activated short-timegrading control

tZSS = Delay time of all switcheswhich sense the short-circuit and receive noblocking signal

A: Output,transmits blocking signal

E: Input,receives blocking signal

Communication lines

td = 80 ms

NSK-8222

A

Q1

E

K2

A

Q2

E

K1

A

E

Q3

Q4 Q5

A A

E E

tzss = 50 ms

td = 150 mstzss = 50 ms

td = 10 mstzss = td

td = 10 mstzss = td

Function:A short-circuit at point K1 issensed by Q4, Q2 and Q1.When the „ZSS“ is activated,Q1 and Q2 are temporarily blocked by Q4 and Q2 respect-tively.As Q4 receives no blocking signal, it trips after 10 ms.

A short-circuit at point K2 issensed only by Q1; as Q1 receives no blocking signal,it trips after 50 ms. Without„ZSS“, tripping would not takeplace until after 150 ms.

Q4 Q2 Q1

150 ms

80 ms 50 ms

NSK-8221a

10 ms

Opening time

Current

A

Fig. 12/2 Fig. 12/3



12


Back-up protection

When a circuit-breaker or minia-ture circuit-breaker is selected, it is mandatory that the breaker is able to handle the short-circuit current at the installation point, either on its own or with the assistance of an upstream protective device (back-up pro-tection). This means that by vir-tue of the back-up protection, the breaking capacity of the downstream breaker is allowed to be lower than the short-circuit current at the installation point. This represents a degree of planning freedom, which makes above all for economical system design and also opti-mizes component protection.

The tables on pages 12/30 and 12/31 show the increased per-missible short-circuit currents for all breaker combinations, made possible by back-up protection.

Appraisal of the back-up pro-tection for the circuit-breakers to IEC 60 947-2 and for the min-iature circuit-breakers accord-ing to IEC 60 898 was based on the breaking capacity test with test sequence Icu, acc. to IEC 60 947-2.

Overload and short-circuit protectivewithout advantage and back-up protectionIn Rated currentI’’k Short-circuit currentIcn Rated short-circuit

breaking capacity

Overload and short-circuit protectivetaking into account back-up protectionacc. to the table on page 12/30 and 12/31.

3VF3

5SX

NSK-8223a

Icn = 40 kA

In = 160 A

I"k = 28 kA

Icn = 10 kA

In = 16 A

5SX

Icn = 10 kA

In = 16 A

3VF3

Icn = 40 kA

In = 160 A

I"k = 28 kA

I"k = 9 kA I"k = 14 kABack-up-protectedup to 15 kA

Fig. 12/4 Example of effect of back-up protection on the selection of circuit-breakers




Discrimination limits

Series connection circuit-breakers — miniature circuit-breakers AC 400 V, 50 Hz1)

Downstream miniature circuit-breakers Upstream circuit-breakers3RV1.1 3RV1.2 3RV1.3

In (A) 10 12 8 10 12.5 16 20 22 25 16I> (A) 120 144 96 120 150 192 240 264 300 192

Icn (kA) 50 50 100 100 50 50 50 50 50 50Discrimination limits (kA)

5SX2...-5 210

630

66

0.2 0.2 0.2 0.2 0.60.3

1.20.5

1.50.5

0.20.2

A-Charakteristics 16 48 6 0.3 0.4 0.53240

96120

66

5SX2/5SX4...-6 6 30 6/10 0.2 0.2 0.2 0.2 0.3 0.5 0.5 0.21013

5065

6/106/10

0.2 0.2 0.20.2

0.30.2

0.40.4

0.50.4

0.20.2

B-Charakteristics 1620

80100

6/106/10

0.2 0.4 0.40.4

2532

125160

6/106/10

4050

200250

6/106/10

5SX2 / 5SX4...-7 0.5 5 6/10 0.2 0.2 0.1 0.1 0.2 0.2 0.5 0.6 0.6 0.3

C-Charakteristics1

1.61016

6/106/10

0.20.2

0.20.2

0.10.1

0.10.1

0.20.2

0.20.2

0.50.5

0.60.6

0.60.6

0.30.3

23

2030

6/106/10

0.2 0.20.2

0.1 0.1 0.20.2

0.20.2

0.50.3

0.60.4

0.60.5

0.30.2

46

4060

6/106/10

0.20.2

0.20.2

0.20.2

0.30.3

0.40.4

0.50.5

0.20.2

810

80100

6/106/10

0.20.2

0.20.2

0.20.2

0.20.2

0.40.4

0.40.4

0.20.2

1316

130160

6/106/10

0.2 0.20.2

0.40.4

0.40.4

0.2

2025

200250

6/106/10

0.4

3240

320400

6/106/10

5063

500630

6/106

5SX2...-8 2 40 6 0.2 0.2 0.4 0.6 0.6 0.3

D-Charakteristics6

10120200

66

0.30.2

0.40.4

0.40.4

0.2

1632

320640

66

4050

8001000

66

5SX6 / 5SX7...-7 63 1200 6/10

C-Charakteristics80100

16002000

6/106/10

5SX6 / 5SX7...-8 63 1200 6/10

D-Charakteristics80100

16002000

6/106/10

In = Rated currentI> = Response current for instantaneous short-circuit releasesIcn = Rated short-circuit breaking capacity acc. to IEC 60 947-2 for mccb´s

Rated short-circuit capacity acc. to EN 60 898 for mccb´s

1) In 240/415 V, 50 Hz networks the discrimination limits must be reduced by 10%.

3VL data in preparation and are available on request.



12



3RV1.4

20 25 32 40 45 50 16 20 25 32 40 50 63 75 90 100240 300 384 480 540 600 192 240 300 384 480 600 756 900 1080 114050 50 50 50 50 50 100 100 100 100 100 100 100 100 100 100

0.80.4

1.20.5

2.50.6

30.8

61

61.2

0.50.3

0.80.4

1.50.5

2.50.6

30.8

61.2

61.5

62.5

63

64

0.3 0.4 0.6 0.8 0.8 1 0.3 0.5 0.6 0.6 1 1.5 2 3 30.6 0.8 0.8

0.80.6 0.8

0.81.51.2

21.5

2.52

32

0.3 0.5 0.6 0.8 1 1.2 0.2 0.4 0.5 0.6 0.8 1.2 2 3 6 60.30.3

0.40.4

0.60.6

0.80.8

11

1.21

0.20.2

0.30.3

0.50.5

0.60.6

0.80.8

11

1.51.5

2.52

43

43

0.3 0.40.4

0.60.6

0.80.8

11

11

0.3 0.50.5

0.60.6

0.80.8

11

1.51.5

22

33

33

0.5 0.60.6

0.80.8

0.80.8

0.60.5

0.60.6

0.80.8

1.51.5

22

33

33

1 0.8 1.21.2

1.51.5

2.52.5

2.52.5

0.5 0.6 1 1 1.5 3 0.4 0.6 0.8 0.8 1 3 6/10 6/10 6/10 6/100.50.5

0.60.6

11

11

1.51.5

33

0.40.4

0.60.6

0.80.8

0.80.8

11

33

6/106/10

6/106/10

6/106/10

6/106/10

0.50.3

0.60.4

10.6

10.8

1.51

31

0.40.2

0.60.3

0.80.5

0.80.6

10.8

31

6/102

6/102.5

6/105

6/105

0.30.3

0.40.4

0.60.6

0.80.8

11

11

0.20.2

0.30.3

0.50.5

0.60.6

0.80.8

11

22

2.52.5

55

55

0.20.2

0.40.4

0.60.6

0.60.6

0.80.8

11

0.20.2

0.30.3

0.40.4

0.60.6

0.60.6

11

1.51.5

22

33

33

0.20.2

0.40.4

0.60.6

0.60.6

0.80.8

11

0.2 0.30.3

0.40.4

0.60.6

0.60.6

11

1.51.5

22

33

33

0.4 0.60.5

0.60.6

0.80.8

10.8

0.4 0.60.5

0.60.6

10.8

1.51.2

21.5

32.5

32.5

0.6 0.8 0.80.8

0.6 0.80.6

1.21

1.51.5

2.52

2.52

1 1.2 1.51.5

21.5

0.5 0.6 0.8 1.2 1.5 1.5 0.4 0.5 0.6 0.8 1 1.5 3 4 6 60.30.3

0.40.4

0.60.5

0.80.6

10.8

10.8

0.2 0.30.3

0.40.4

0.60.5

0.60.6

10.8

1.51.5

2.52

33

33

0.5 0.6 0.60.6

0.60.6

0.5 0.6 0.80.6

1.21

1.51.5

2.52

2.52

11

1.21.2

1.51.5

1.52

1.5 1.51.2

1.2 1.2





Series-connection circuit breakers — miniature circuit-breakers AC 400 V, 50 HzAC 230/400 V, 50 Hz1)

Downstream miniature circuit-breakers Upstream circuit breakers3VF3

adjustable

3VF3

fixed setting

In (A) 50 63 80 100 125 160 50 63 80 100

I> (A)2) 500 630 800 1000 1250 1600 400 500 630 800

Icn (kA)40/70/100

40/70/100

40/70/100

40/70/100

40/70/100

40/70/100

40/70/100

40/70/100

40/70/100

40/70/100

Discrimination limits (kA)5SX25SX4

210

630

66

61.6

64.7

66

66

66

66

62.5

64

64

64.5

A-Charakteristics 1632

4896

66

1.41.2

4.73.6

64.6

66

66

66

2.31.8

3.73

3.73

4.43.5

40 120 6 1 2.5 3.1 6 6 6 1.5 2 2 2.4

5SX25SX4

610

3050

6/106/10

2.11.8

6/106/6.6

6/106/10

6/106/10

6/106/10

6/106/10

3.22.5

6/106/6.2

6/9.74.8

6/106/6.2

B-Charakteristics 1316

6580

6/106/10

1.61.6

5.15.1

6/8.26/8.2

6/106/10

6/106/10

6/106/10

2.32.3

4.64.6

3.83.8

4.64.6

2025

100125

6/106/10

1.61.4

5.13.5

6/8.24.6

6/105.5

6/106

6/106/10

2.32.1

4.63.4

3.83

4.63.4

3240

160200

6/106/10

1.41.3

3.52.4

4.62.8

5.53.3

64.5

6/106/6.7

2.11.8

3.42.3

32.3

3.42.4

50 250 6/10 2.4 2.8 3.3 4.3 5.8 2.3 2.2 2.4

5SX25SX4

0.51

510

6/106/10

1010

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

C-Charakteristics 1.52

1520

6/106/10

1010

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

34

3040

6/106/10

1.91.9

6/9.56/9.5

6/106/10

6/106/10

6/106/10

6/106/10

2.52.5

6/8.26/8.2

6/6.36/6.3

6/8.26/8.2

68

6080

6/106/10

1.91.7

6/9.54.2

6/106/7.9

6/106/10

6/106/10

6/106/10

2.52.3

6/8.23.7

6/6.33.3

6/8.23.8

1013

100130

6/106/10

1.71.5

4.24.2

6/7.95.5

6/106/10

6/106/9.7

6/106/10

2.32.1

3.73.9

3.33.2

3.83.8

1620

160200

6/106/10

1.51.5

4.24.2

5.55.5

6/106/10

6/9.76/9.7

6/106/10

2.12.1

3.93.9

3.23.2

3.83.8

2532

250320

6/106/10

1.11.1

3.43.4

4.54.5

5.45.4

5.75.7

6/8.86/8.8

1.91.9

33

2.62.6

33

4050

200500

6/106/10

0.9 2.22.1

2.62.5

2.82.8

3.13.1

4.84.8

1.4 2.1 21.9

2.22.1

5SX2 2 40 6 2.4 6 6 6 6 6 4.2 6 6 65SX4D-Charakteristics

610

120200

66

1.41.3

4.23.9

4.85.5

66

66

66

2.31.9

4.11.9

3.83.2

4.23.7

1632

320640

66

1.1 3.5 4.23.3

4.93.9

64.2

66

1.7 3.3 2.9 3.32.4

4050

8001000

66

3.1 3.32.9

4.94.8

5SX7C-Charakteristics 63

80630800

6010

1.2 1.51.5

21.5

32.5

1

100 1000 10 1.5 2

5SX7D-Charakteristics

6380

12001600

1010

2.5

100 2000 10

In = Rated currentI> = Response current for instantaneous short-circuit releases Icn = Rated short-circuit breaking capacity acc. to IEC 60 947-2 for circuit-breakers

Rated breaking capacity acc. to IEC 60 898 for mccb’s

1) In 240/415 V, 50 Hz networks the discrimination limits must be reduced by 10%.2) The discrimination values apply for adjustable releases at maximum setting.




12



3VF4 3VF5 3VF6 3VF7 3VF8 3WN1 3WN6

125 160 125 160 200 250 200 250 315 400 315400-800

400-1250

800-2500

315-6300

315-3200

1000 1280 1250 1600 2000 2500 2000 2500 3150 4000 32001575-6400 15000 20000

3780-75600

3780-48000

40/70/100

40/70/100

40/70/100

40/70/100

40/70/100

40/70/100

45/70/100

45/70/100

45/70/100

45/70/100

45/70/100

45/70/100

50/70/100 70/100

65/80/100 65/75

64.9

66

66

66

66

66

66

66

66

66

66

66

66

66

66

66

53.7

66

66

66

66

66

66

66

66

66

66

66

66

66

66

66

2.7 3.2 3.9 4.6 6 6 6 6 6 6 6 6 6 6 6 6

6/106/6.5

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

5.15.1

6/8.96/8.9

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

5.13.7

6/8.95.2

6/106/9.6

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

3.72.5

5.23.6

6/9.66

6/106

6/106

6/106

6/106

6/106

6/106

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

2.7 3.6 5.1 5.9 6 6 6 6 6 6/10 6/10 6/10 6/10 6/10 6/10 6/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/8.66/8.6

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/8.64.6

6/106/9.4

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

4.64.4

6/9.46/7.5

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

4.44.4

6/7.56/7.5

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

3.63.6

4.94.9

6/86/8

6/9.16/9.1

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

2.32.2

2.92.9

3.63.6

4.84.8

6/6.56/6.2

6/6.56/6.2

6/6.56/6.2

6/6.56/6.2

6/6.56/6.3

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6/106/10

6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 64.34

66

66

66

66

66

66

66

66

66

66

66

66

66

66

66

3.52.7

4.73.7

66

66

66

66

66

66

66

66

66

66

66

66

66

66

1.5 32.6

44

4.94.8

66

66

66

66

65.9

66

66

66

66

66

66

66

1.21.2

1.51.5

2.51.5

32

43

43

43

32.5

43

66

108

1010

1010

1010

1010

1010

1.5 1.5 2 3 3 3 2.5 3 5 6 10 10 10 10 10

2 43

43

32.5

2.52

43

65

86

1010

1010

1010

1010

1010

2.5 2 3 5 6 10 10 10 10 10





Series connection circuit-breakers — circuit-breakers AC 400 V, 50 Hz1)

Downstream circuit-breakers Upstream circuit-breakers3RV1.1

In (A) 1 1.25 1.6 2 2.5 3.2 4 5 6.3 8 10I> (A) 12 15 19 24 30 38 48 60 76 96 120

Icn (kA) 100 100 100 100 100 100 100 100 100 50 50Discrimination limits (kA)

3RV1.1 11.25

1215

100100

0.10.1

0.10.1

0.20.1

0.30.2

0.60.3

500.4

1.62

1924

100100

0.10.1

0.10.1

0.10.1

0.10.1

0.20.2

0.30.2

2.53.2

3038

100100

0.10.1

0.10.1

0.10.1

0.10.1

0.20.2

45

4860

100100

6.38

7696

10050

1012

120144

5050

3RV1.2 1 12 100 0.1 0.1 0.1 0.6 50 501.251.6

1519

100100

0.1 0.10.1

0.20.1

0.20.1

0.60.2

300.3

22.5

2430

100100

0.10.1

0.10.1

0.10.1

0.20.2

0.30.2

3.24

3848

100100

0.1 0.1 0.1 0.1 0.2

56.3

6076

100100

810

96120

100100

12.516

150192

10050

2022

240264

5050

25 300 50

3RV1.3 1620

192240

5050

2532

300384

5050

4045

480540

5050

50 600 50

3RV1.4 1620

192240

100100

2532

300384

100100

4050

480600

100100

6375

756900

100100

90100

10801140

100100


In = Rated currentI> = Response current for instantaneous short-circuit releasesIcn = Rated short-circuit breaking capacity




12



3RV1.2

12 1 1.25 1.6 2 2.5 3.2 4 5 6.3 8 10 12.5 16 20 22 25144 12 15 19 24 30 38 48 60 76 96 120 150 192 240 264 30050 100 100 100 100 100 100 100 100 100 100 100 100 50 50 50 50

500.8

0.10.1

0.10.1

0.20.1

0.60.3

0.40.2

1.20.3

1001.2

501.2

5050

5050

5050

0.30.3

0.1 0.10.1

0.10.1

0.20.2

0.20.2

0.20.2

0.40.3

0.40.3

10.5

121

501.2

0.20.2

0.10.1

0.10.1

0.10.1

0.10.1

0.20.1

0.20.2

0.20.2

0.40.3

0.60.5

0.60.5

0.40.4

0.40.4

0.30.3

0.40.4

0.3 0.40.3

50 0.1 0.1 0.1 2 100 100 100 50 50 50 50500.4

0.1 0.10.1

0.20.1

0.30.2

0.40.2

0.80.2

1000.5

500.4

5050

5050

5050

0.50.3

0.10.1

0.10.1

0.20.2

0.20.1

0.20.2

0.50.3

0.60.4

1.50.8

501.5

502

0.2 0.1 0.1 0.1 0.2 0.3 0.3 0.60.4

0.60.6

0.60.6

0.40.4

0.40.5

0.40.4

0.40.50.40.40.40.4






Downstream circuit-breaker Upstream circuit-breakers3RV1.3

In (A) 16 20 25 32 40 45 50I> (A) 192 240 300 384 480 540 600

Icn (kA) 50 50 50 100 50 50 50Discrimination limits(kA)

3RV1.1 11.25

1215

100100

5050

5050

5050

5050

5050

5050

5050

1.62

1924

100100

0.60.4

1.50.6

501.2

503

5050

5050

5050

2.53.2

3038

100100

0.30.3

0.40.3

0.60.5

1.20.8

21.2

31.5

52

45

4860

100100

0.40.4

0.60.6

0.80.6

10.8

1.21

6.38

7696

10050

0.40.4

0.50.5

0.60.6

0.80.6

0.80.8

1012

120144

5050

0.4 0.50.5

0.60.6

0.60.6

0.80.8

3RV1.2 1 12 100 50 50 50 50 50 50 501.251.6

1519

100100

506

5050

5050

5050

5050

5050

5050

22.5

2430

100100

0.80.5

2.51

501.5

508

5050

5050

5050

3.24

3848

100100

0.4 0.60.4

0.60.6

21

31.5

62.5

123

56.3

6076

100100

0.40.5

0.60.6

0.80.6

1.50.6

1.50.6

810

96120

100100

0.40.4

0.60.6

0.80.8

11

1.21

12.516

150192

10050

0.4 0.50.5

0.60.6

0.80.8

10.8

2022

240264

5050

0.6 0.80.6

25 300 50 0.6

3RV1.3 1620

192240

5050

0.50.5

0.60.6

0.60.6

0.80.8

2532

300384

5050

0.4 0.5 0.6 0.60.6

4045

480540

5050

0.6

50 600 50

3RV1.4 1620

192240

100100

0.50.5

0.60.6

0.60.6

0.80.8

2532

300384

100100

0.4 0.5 0.6 0.60.6

4050

480600

100100

0.6

6370

756900

100100

90100

10801140

100100






12



3RV1.4

16 20 25 32 40 50 63 75 90 100192 240 300 384 480 600 756 900 1080 1140100 100 100 100 100 100 100 100 100 100

100100

100100

100100

100100

100100

100100

100100

100100

100100

100100

0.60.4

1.50.6

1001.2

1002.5

100100

100100

100100

100100

100100

100100

0.30.2

0.40.3

0.60.5

1.20.6

1.51

31.5

1005

100100

100100

100100

0.40.4

0.60.6

0.60.6

11.5

21.2

32

204

1004

0.40.4

0.50.5

0.60.6

0.80.8

1.21

21.5

2.52

32

0.4 0.50.4

0.60.5

0.60.6

11

1.21.2

21.5

21.5

100 100 100 100 100 100 100 100 100 100100100

100100

100100

100100

100100

100100

100100

100100

100100

100100

1.20.6

81.2

1004

10015

100100

100100

100100

100100

100100

100100

0.40.3

0.60.5

0.60.6

2.51.1

41.5

153

10020

100100

100100

100100

0.30.3

0.40.5

0.60.6

0.80.6

1.50.6

42.5

104

2010

2510

0.40.4

0.60.6

0.80.6

1.21

21.5

32

64

64

0.4 0.50.5

0.60.6

0.80.8

1.21.2

21.5

32.5

32.5

0.6 11

1.21.2

21.5

22

0.8 1.2 1.5 1.5

0.50.4

0.60.5

0.80.6

1.21

1.51.2

2.52

2.52

0.4 0.5 0.6 10.8

1.21

1.51.2

1.51.5

0.60.6

0.60.6

0.60.6

1.50.60.6

0.40.4

0.50.5

0.60.6

1.21

1.51.2

2.52

2.52

0.4 0.5 0.60.6

10.8

1.21

1.51.2

1.51.5

0.60.8

0.61

0.61.2

0.61.2






Downstream circuit-breakers Upstream circuit-breakers3VF3adjustable

3VF3fixed setting

In (A) 50 63 80 100 125 160 200 50I> (A)2) 500 630 800 1000 1250 1600 2000 400

Icn (kA) 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 25/40/70/100Discrimination limits (kA)3)

3RV1.1 11.25

1215

100100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

25/40/70/10025/40/70/100

1.62

1924

100100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

25/40/70/10025/40/70/100

2.53.2

3038

100100

251.5

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

25/40/70/10010

45

4860

100100

1.21

63

40/70/1006

40/70/10010

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

1.51.2

6.38

7696

10050

0.80.8

2.51.5

62

62.5

83

40/70/1008

40/70/10015

1.21

1012

120144

5050

0.80.8

1.51.2

2.51.5

2.52

32.5

54

86

11

3RV1.2 1 12 100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 25/40/70/1001.251.6

1519

100100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

25/40/70/10025/40/70/100

22.5

2430

100100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

25/40/70/10025/40/70/100

3.24

3848

100100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

25/40/70/10025/40/70/100

56.3

6076

100100

52.5

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

206

810

96120

100100

21.5

40/70/1005

40/70/1006

40/70/1006

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

42

12.516

150192

10050

1.21

63

65

66

40/70/1006

40/70/10040/50/50

40/70/10040/50/50

21.2

2022

240264

5050

0.80.6

2.51.5

32

43

43

40/50/506

40/50/508

11

25 300 50 0.6 1.5 2 2.5 3 6 10 0.83RV1.3 16

20192240

5050

10.8

42.5

40/70/504

40/70/506

40/70/506

40/70/5040/70/50

40/70/5040/70/50

1.51.2

2532

300384

5050

0.60.6

21.2

31.5

42

42.5

105

106

10.8

4045

480540

5050

0.60.6

1.51.5

21.5

22

43

54

50 600 50 1.5 1.5 2 3 43RV1.4 16

20192240

100100

0.80.8

32

53

83

64

40/70/10040

40/70/10040

1.21

2532

300384

100100

0.60.6

1.51.2

2.51.2

31.5

32.5

55

66

0.80.8

4050

480600

100100

0.60.8

1.51.5

1.51.5

1.52

22.5

33

0.6

6375

756900

100100

1.51.2

21.5

32.5

90100

10801140

100100

1.2 21.5

2.52.5

3VF3 50 500 40/70/100 1.2 1.3 1.5 1.9 2.5

for line protection6380

630800

40/70/10040/70/100

1.31.3

1.51.5

1.91.9

2.52.5

adjustable 100125

10001250

40/70/10040/70/100

1.5 1.91.9

22

160 1600 40/70/100 23VF3 16

20400400

25/40/7025/40/70

1.21.2

1.31.3

1.51.5

1.91.9

2.52.5

for line protectionfixed setting

2532

400400

25/40/7025/40/70/100

1.21.2

1.31.3

1.51.5

1.91.9

2.52.5

4050

400400

25/40/70/10025/40/70/100

1.21.2

1.31.3

1.51.5

1.91.9

2.52.5

6380

500630

25/40/70/10025/40/70/100

1.31.3

1.51.5

1.91.9

2.52.5

100125

8001000

25/40/70/10025/40/70/100

1.5 1.91.9

22

160200

12802400

25/40/70/10040/70/100

2

225 2400 40/70/1003VF3 80

10012001500

40/7040/70

1.7 1.7

for motor protection 160205

24002600

40/7040/70

3VF3 63 1000 70 1.5 1.7 2

for starter combinations100160

15002400

7070

2

3VF3 100 1500 70 2Non-automatic circuit-breakers

160 2400 70

1) In 240/415 V, 50 Hz networks the discrimination limits must be reduced by 10%.2) The discrimination values for the upstream circuit-breakers apply for adjustable releases at maximum setting.3) The corresponding value is dependant upon the breaking capacities of the upstream and downstream breakers (See page 12/4).



12



3VF4

63 80 100 125 160 200 225 125 160 200 250500 630 800 1000 1280 2400 2400 1250 1600 2000 2500

25/40/70/100 25/40/70/100 25/40/70/100 25/40/70/100 25/40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

63

42.5

63

25/40/70/1005

25/40/70/10025/40/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

2.51.5

21.5

2.51.5

42

62.5

40/70/10040/50/50

40/70/10040/50/50

40/70/1004

40/70/1008

40/70/10040/50/50

40/70/10040/50/50

1.51.2

1.51.2

1.51.2

21.5

32.5

40/50/508

40/50/508

43

54

108

108

25/40/70/100 25/40/70/100 25/40/70/100 25/40/70/100 25/40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/10025/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

25/40/70/10025/40/40/40

25/40/70/10025

25/40/70/10025/40/40/40

25/40/70/10025/40/40/40

25/40/70/10025/40/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

25/30/30/305

155

25/30/30/305

255

25/40/70/1006

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

43

32.5

43

53

66

40/70/10040/50/50

40/70/10040/50/50

40/70/10040/50/50

40/70/10040/50/50

40/70/10040/50/50

40/70/10040/50/50

21.5

1.51.5

21.5

2.52

43

40/50/5040/50/50

40/50/5040/50/50

105

40/50/506

40/50/5040/50/50

40/50/5040/50/50

1.5 1.2 1.5 1.5 2.5 40/50/50 40/50/50 5 6 40/50/50 40/50/5032

32

42.5

42.5

85

40/50/5040/50/50

40/50/5040/50/50

40/50/5040/50/50

40/50/5040/50/50

40/50/5040/50/50

40/50/5040/50/50

1.51

1.21

1.51.2

21.5

32

40/50/508

40/50/508

104

40/50/505

40/50/5040/50/50

40/50/5040/50/50

10.8

10.8

0.60.6

0.60.6

21.5

65

65

32.5

43

86

86

1.2 1.5 5 5 2.5 3 6 532

2.51.5

32

32

53

40/70/10040

40/70/10040

40/70/10012

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

1.51

1.51

1.51.2

21.2

32

88

88

44

65

4010

1210

1 1 0.61

0.61

1.51.5

44

44

22

22.5

34

34

1.5 33

33

21.2

2.51.5

33

33

33

33

1.2 1.51.5

2.52

2.52.5

1.3 1.5 3 3 1.3 1.5 2.8 31.31.3

1.51.5

33

33

1.3 1.51.5

2.62.6

2.92.9

1.5 2.82.8

2.82.8

2.62.6

2.82.8

2.5 2.5 2.61.31.3

1.51.5

33

33

1.31.3

1.51.5

2.82.8

33

1.31.3

1.51.5

33

33

1.31.3

1.51.5

2.82.8

33

1.31.3

1.51.5

33

33

1.31.3

1.51.5

2.82.8

33

1.31.3

1.51.5

2.82.8

2.82.8

1.3 1.51.5

2.62.6

2.92.9

1 1.51.5

2.52.5

2.52.5

2.42.4

2.62.6

2.5 2.5 2.6

2.5 2.5 2.3 2.5

2.5 2.5 2.4 2.62.5 2.5 2.4 2.6

2.6

2.5 2.5 2.5 2.62.6







Series connection circuit breakers — circuit-breakers AC 400 V, 50 Hz1)

Downstream circuit-breakers Upstream circuit-breakers3VF5 3VF6

In (A) 200 250 315 400 315 400I> (A)3) 5000 2500 3150 4000 3200 4000

Icn (kA) 45/70/100 45/70/100 45/70/100 45/70/100 45/70/100 45/70/100Discrimination limits (kA)4)

3RV1.1 11.25

1215

100100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

1.62

1924

100100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

2.53.2

3038

100100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45

4860

100100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

6.38

7696

10050

45/70/10045/50/50

45/70/1008

45/70/10045/50/50

45/70/10045/50/50

45/70/10045/50/50

45/70/10045/50/50

1012

120144

5050

86

65

108

45/50/5045/50/50

45/50/5045/50/50

45/50/5045/50/50

3RV1.2 1 12 100 45/70/100 45/70/100 45/70/100 45/70/100 45/70/100 45/70/1001.251.6

1519

100100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

22.5

2430

100100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

3.24

3848

100100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

56.3

6076

100100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

810

96120

100100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

12.516

150192

10050

45/70/10045/50/50

45/70/10045/50/50

45/70/10045/50/50

45/70/10045/50/50

45/70/10045/50/50

45/70/10045/50/50

2022

240264

5050

45/50/5045/50/50

126

45/50/5045/50/50

45/50/5045/50/50

45/50/5045/50/50

45/50/5045/50/50

25 300 50 45/50/50 6 45/50/50 45/50/50 45/50/50 45/50/503RV1.3 16

20192240

5050

45/50/5045/50/50

45/50/5045/50/50

45/50/5045/50/50

45/50/5045/50/50

45/50/5045/50/50

45/50/5045/50/50

2532

300384

5050

45/50/5045/50/50

104

45/50/506

2510

45/50/5045/50/50

45/50/5045/50/50

4045

480540

5050

106

43

64

88

45/50/5025

45/50/5045/50/50

50 600 50 5 3 4 8 45/50/50 45/50/503RV1.4 16

20192240

100100

45/70/10045/70/100

45/70/10012

45/70/10040

45/70/10030

45/70/10045/70/100

45/70/10045/70/100

2532

300384

100100

4010

55

86

1210

4030

45/70/10045/70/100

4050

480600

100100

2.54

2.52.5

44

66

1010

2515

6375

756900

100100

32

2.52

33

54

86

1010

90100

10801140

100100

22

22

33

44

66

108

3VF3 50 500 40/70/100 2.2 2.3 3 3.4 4 5.6


630800

40/70/10040/70/100

22

2.12

2.52.5

3.43.4

44

5.65.6

adjustable 100125

10001250

40/70/10040/70/100

22

22

2.52.5

3.43.4

44

5.25.1

160 1600 40/70/100 2.5 3.4 4 53VF3 16

20400400

25/40/7025/40/70

2.22.2

2.32.3

33

3.43.4

44

5.65.6


2532

400400

25/40/7025/40/70/100

2.22.2

2.32.3

33

3.43.4

44

5.65.6

4050

400400

25/40/70/10025/40/70/100

2.22.2

2.32.3

33

3.43.4

44

5.65.6

6380

500630

25/40/70/10025/40/70/100

22

2.12

2.52.5

3.43.4

44

5.65.6

100125

8001000

25/40/70/10025/40/70/100

22

22

2.52.5

3.453.4

44

5.65.6

160200

12802400

25/40/70/10040/70/100

2 2 2.5 3.43

44.2

55

225 2400 40/70/100 3 4.2 53VF3 80

10012001500

40/7040/70

1.7 1.7 2.5 3.43.3

44

55


24002600

40/7040/70

3.43.2

44

55

3VF3 63 1000 70 2 2 2.5 3.4 4 6


15002400

7070

2.5 3.43

44

65

3VF3 100 1500 70 2.5 3 4 6Non-automatic circuit-breakers 160 2400 70 3 4 5

1) In 240/415 V, 50 Hz networks the discrimination limits must be reduced by 10%.2) For 3VF7, 3VF8 and 3WN1, the delay time td must also be set to 100 ms or higher.3) The discrimination values for the upstream circuit-breakers apply for adjustable releases at maximum setting.4) The corresponding value is dependant upon the breaking capacities of the upstream and downstream breakers (See page 12/4).



12



3VF72) 3VF82) 3WN12)

500 630 800 800-1250 1600-2500 315 400 500 630 800 10005000 6300 6400 15000 20000 3780 4800 6000 7560 9600 12000

45/70/100 45/70/100 500 50/70/100 70/100 65 65 65 50/80 50/80 50/80

45/70/10045/70/100

45/70/10045/70/100

5050

50/70/10050/70/100

70/10070/100

6565

6565

6565

50/8050/80

50/8050/80

50/8050/80

45/70/10045/70/100

45/70/10045/70/100

5050

50/70/10050/70/100

70/10070/100

6565

6565

6565

50/8050/80

50/8050/80

50/8050/80

45/70/10045/70/100

45/70/10045/70/100

5050

50/70/10050/70/100

70/10070/100

6565

6565

6565

50/8050/80

50/8050/80

50/8050/80

45/70/10045/70/100

45/70/10045/70/100

5050

50/70/10050/70/100

70/10070/100

6565

6565

6565

50/8050/80

50/8050/80

50/8050/80

45/70/10045/50/50

45/70/10045/50/50

5050

50/70/10050

70/10050

6550

6550

6550

50/8050

50/8050

50/8050

45/50/5045/50/50

45/50/5045/50/50

5050

5050

5050

5050

5050

5050

5050

5050

5050

45/70/100 45/70/100 50 50/70/100 70/100 65 65 65 50/80 50/80 50/8045/70/10045/70/100

45/70/10045/70/100

5050

50/70/10050/70/100

70/10070/100

6565

6565

6565

50/8050/80

50/8050/80

50/8050/80

45/70/10045/70/100

45/70/10045/70/100

5050

50/70/10050/70/100

70/10070/100

6565

6565

6565

50/8050/80

50/8050/80

50/8050/80

45/70/10045/70/100

45/70/10045/70/100

5050

50/70/10050/70/100

70/10070/100

6565

6565

6565

50/8050/80

50/8050/80

50/8050/80

45/70/10045/70/100

45/70/10045/70/100

5050

50/70/10050/70/100

70/10070/100

6565

6565

6565

50/8050/80

50/8050/80

50/8050/80

45/70/10045/70/100

45/70/10045/70/100

5050

50/70/10050/70/100

70/10070/100

6565

6565

6565

50/8050/80

50/8050/80

50/8050/80

45/70/10045/50/50

45/70/10045/50/50

5050

50/70/10050

70/10050

6550

6550

6550

50/8050

50/8050

50/8050

45/50/5045/50/50

45/50/5045/50/50

5050

5050

5050

5050

5050

5050

5050

5050

5050

45/50/50 45/50/50 50 50 50 40 50 50 50 50 5045/50/5045/50/50

45/50/5045/50/50

5050

5050

5050

3025

4040

5050

5050

5050

5050

45/50/5045/50/50

45/50/5045/50/50

5050

5050

5050

2015

3025

5050

5050

5050

5050

45/50/5045/50/50

45/50/5045/50/50

5050

5050

5050

1512

2525

4040

5050

5050

5050

45/50/50 45/50/50 50 50 50 12 25 40 50 50 5045/70/10045/70/100

45/70/10045/70/100

5050

50/70/10050/70/100

70/10070/100

3025

6565

6565

50/8050/80

50/8050/80

50/8050/80

45/70/10045/70/100

45/70/10045/70/100

5050

50/70/10050/70/100

70/10070/100

1512

2525

6530

50/8050/80

50/8050/80

50/8050/80

45/70/10045/70/100

45/70/10045/70/100

5050

50/70/10050/70/100

70/10070/100

1010

1515

3025

50/8040

50/8050/80

50/8050/80

1212

3015

3015

50/70/10050/70/100

70/10070/100

108

1212

2020

3030

50/8050/80

50/8050/80

1210

1212

1212

50/70/10050/70/100

70/10070/100

88

1212

2020

3030

50/8050/80

50/8050/80

6.4 8.3 8.3 40/70/70 40/70/100 7 10 15 28 40/50/50 40/70/806.46.4

88

88

40/70/7040/70/70

40/70/10040/70/100

77

1010

1515

2525

40/50/5040/50/50

40/70/8040/70/80

5.55.5

88

88

40/70/7040/70/70

40/70/10040/70/100

6.46.4

1010

1515

2525

40/50/5040/50/50

40/70/8040/70/80

5.5 6 6 40/65 40/70/100 6.4 10 15 22 35 40/70/806.46.4

8.38.3

8.38.3

25/40/7025/40/70

25/40/6525/40/65

77

1010

1515

2828

25/40/5025/40/50

25/40/8025/40/80

6.46.4

8.38.3

8.38.3

25/40/7025/40/70/70

25/40/6525/40/70/100

77

1010

1515

2828

25/40/5025/40/50/50

25/40/8025/40/70/80

6.46.4

8.38.3

8.38.3

25/40/70/7025/40/70/70

25/40/70/10025/40/70/100

77

1010

1515

2828

25/40/50/5025/40/50/50

25/40/70/8025/40/70/80

6.46.4

88

88

25/40/70/7025/40/70/70

25/40/70/10025/40/70/100

77

1010

1515

2525

25/40/50/5025/40/50/50

25/40/70/8025/40/70/80

66

88

88

25/40/65/6525/40/65/65

25/40/70/10025/40/70/100

77

1010

1515

2222

25/35/35/3525/35/35/35

25/40/70/8025/40/70/80

66

86

86

25/40/65/6540/65/65

25/40/70/10040/70/100

76.7

1011

1515

2222

25/35/35/3535

25/40/70/8040/70/80

6 6 6 40/65/65 40/70/100 6.7 11 15 22 35 40/70/806.36

66

66

40/70/7040/70/70

40/7040/70

77

1010

1515

2222

3535

40/7040/70

66

66

66

40/70/7040/70/70

40/7040/70

77

1010

1515

2222

3535

40/7040/70

7 8 8 50/70 70 7.3 10 15 22 35 706.56

66

66

50/7050/70

7070

6.96.7

1010

1515

2222

3535

7070

6.5 6 6 70 706 6 6 70 70








Downstream circuit-breakers Upstream circuit-breakers3WN1

In (A) 1250 1600 2000 2500 3200 4000I> (A)2) 15000 19200 24000 30000 37800 48000

Icn (kA) 50/80 50/80 65/80 65/80 100 100Discrimination limits (kA)3)

3RV1.1 11.25

1215

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

1.62

1924

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

2.53.2

3038

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

45

4860

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

6.38

7696

10050

50/8050

50/8050

65/8050

65/8050

10050

10050

1012

120144

5050

5050

5050

5050

5050

5050

5050

3RV1.2 1 12 100 50/80 50/80 65/80 65/80 100 1001.251.6

1519

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

22.5

2430

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

3.24

3848

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

56.3

6076

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

810

96120

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

12.516

150192

10050

50/8050

50/8050

65/8050

65/8050

10050

10050

2022

240264

5050

5050

5050

5050

5050

5050

5050

25 300 50 50 50 50 50 50 503RV1.3 16

20192240

5050

5050

5050

5050

5050

5050

5050

2532

300384

5050

5050

5050

5050

5050

5050

5050

4045

480540

5050

5050

5050

5050

5050

5050

5050

50 600 50 50 50 50 50 50 503RV1.4 16

20192240

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

2532

300384

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

4050

480600

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

6375

756900

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

90100

10801140

100100

50/8050/80

50/8050/80

65/8065/80

65/8065/80

100100

100100

3VF3 50 500 40/70/100 40/70/80 40/70/80 40/70/80 40/70/80 40/70/100 40/70/100


630800

40/70/10040/70/100

40/70/8040/70/80

40/70/8040/70/80

40/70/8040/70/80

40/70/8040/70/80

40/70/10040/70/100

40/70/10040/70/100

adjustable 100125

10001250

40/70/10040/70/100

40/70/8040/70/80

40/70/8040/70/80

40/70/8040/70/80

40/70/8040/70/80

40/70/10040/70/100

40/70/10040/70/100

160 1600 40/70/100 40/70/80 40/70/80 40/70/80 40/70/80 40/70/100 40/70/1003VF3 16

20400400

25/40/7025/40/70

25/40/7025/40/70

25/40/7025/40/70

25/40/7025/40/70

25/40/7025/40/70

25/40/7025/40/70

25/40/7025/40/70


2532

400400

25/40/7025/40/70/100

25/40/7025/40/70/80

25/40/7025/40/70/80

25/40/7025/40/70/80

25/40/7025/40/70/80

25/40/7025/40/70/100

25/40/7025/40/70/100

4050

400400

25/40/70/10025/40/70/100

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

6380

500630

25/40/70/10025/40/70/100

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

100125

8001000

25/40/70/10025/40/70/100

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

160200

12802400

25/40/70/10040/70/100

25/40/70/8040/70/80

25/40/70/8040/70/80

25/40/70/8040/70/80

25/40/70/8040/70/80

25/40/70/10040/70/100

25/40/70/10040/70/100

225 2400 40/70/100 40/70/80 40/70/80 40/70/80 40/70/80 40/70/100 40/70/1003VF3 80

10012001500

40/7040/70

40/7040/70

40/7040/70

40/7040/70

40/7040/70

40/7040/70

40/7040/70


24002600

40/7040/70

40/7040/70

40/7040/70

40/7040/70

40/7040/70

40/7040/70

40/7040/70

3VF3 63 1000 70 70 70 70 70 70 70


15002400

7070

7070

7070

7070

7070

7070

7070

3VF3 100 1500 70 70 70 70 70 70 70Non-automatic circuit-breakers 160 2400 70 70 70 70 70 70 70

1) In 240/415 V, 50 Hz networks the discrimination limits must be reduced by 10%.2) The discrimination values for the upstream circuit-breakers apply for adjustable releases at maximum setting.3) The corresponding value is dependant upon the breaking capacities of the upstream and downstream breakers (See page 12/4).



12



3WN6

5000 630 315 400 500 630 800 1000 1250 1600 2000 2500 320060000 6300 4750 6000 7500 9450 12000 15000 18750 24000 24000 37500 48000100 100 65 65 65 65 65 65 65 65 80 80 80

100100

100100

6565

6565

6565

6565

6565

6565

6565

6565

8080

8080

8080

100100

100100

6565

6565

6565

6565

6565

6565

6565

6565

8080

8080

8080

100100

100100

6565

6565

6565

6565

6565

6565

6565

6565

8080

8080

8080

100100

100100

6565

6565

6565

6565

6565

6565

6565

6565

8080

8080

8080

10050

10050

6550

6550

6550

6550

6550

6550

6550

6550

8050

8050

8050

5050

5050

5030

5050

5050

5050

5050

5050

5050

5050

5050

5050

5050

100 100 65 65 65 65 65 65 65 65 80 80 80100100

100100

6565

6565

6565

6565

6565

6565

6565

6565

8080

8080

8080

100100

100100

6565

6565

6565

6565

6565

6565

6565

6565

8080

8080

8080

100100

100100

6565

6565

6565

6565

6565

6565

6565

6565

8080

8080

8080

100100

100100

6565

6565

6565

6565

6565

6565

6565

6565

8080

8080

8080

100100

100100

6565

6565

6565

6565

6565

6565

6565

6565

8080

8080

8080

10050

10050

3025

6550

6550

6550

6550

6550

6550

6550

8050

8050

8050

5050

5050

2520

5040

5050

5050

5050

5050

5050

5050

5050

5050

5050

50 50 20 40 50 50 50 50 50 50 50 50 505050

5050

2015

3025

4040

5050

5050

5050

5050

5050

5050

5050

5050

5050

5050

128

2015

3025

5040

5050

5050

5050

5050

5050

5050

5050

5050

5050

88

1212

2020

4040

5050

5050

5050

5050

5050

5050

5050

50 50 8 12 25 40 50 50 50 50 50 50 50100100

100100

2515

3025

6565

6565

6565

6565

6565

6565

8080

8080

8080

100100

100100

1010

1512

2520

6530

6565

6565

6565

6565

8080

8080

8080

100100

100100

66

1010

1515

2525

4030

6565

6565

6565

8080

8080

8080

100100

100100

66

108

1212

2020

3030

6565

6565

6565

8080

8080

8080

100100

100100

66

88

1210

1515

3030

6565

6565

6565

8080

8080

8080

40/70/100 40/70/100 4.5 6.3 10 14 27 40/50/50 40/65/65 40/65/65 40/70/80 40/70/80 40/70/8040/70/10040/70/100

40/70/10040/70/100

4.54.5

6.36.3

1010

1414

2525

4040

40/65/6540/65/65

40/65/6540/65/65

40/70/8040/70/80

40/70/8040/70/80

40/70/8040/70/80

40/70/10040/70/100

40/70/10040/70/100

4.54.5

6.36.3

1010

1414

2424

4040

40/65/6540/65/65

40/65/6540/65/65

40/70/8040/70/80

40/70/8040/70/80

40/70/8040/70/80

40/70/100 40/70/100 4.5 6.3 10 14 20 33 35/65/60 40/65/65 40/70/80 40/70/80 40/70/8025/40/7025/40/70

25/40/7025/40/70

4.54.5

6.86.8

1010

1414

2727

25/40/5025/40/50

25/40/6525/40/65

25/40/6525/40/65

25/40/7025/40/70

25/40/7025/40/70

25/40/7025/40/70

25/40/7025/40/70/100

25/40/7025/40/70/100

4.54.5

6.86.8

1010

1414

2725/27/27/27

25/40/5025/40/50/50

25/40/6525/40/65/65

25/40/6525/40/65/65

25/40/7025/40/70/80

25/40/7025/40/70/80

25/40/7025/40/70/80

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

4.54.5

6.86.8

1010

1414

25/27/27/2725/27/27/27

25/40/50/5025/40/50/50

25/40/65/6525/40/65/65

25/40/65/6525/40/65/65

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

4.54.5

6.86.8

1010

1414

2525

25/40/40/4025/40/40/40

25/40/65/6525/40/65/65

25/40/65/6525/40/65/65

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/10025/40/70/100

25/40/70/10025/40/70/100

4.54.5

6.86.8

1010

1414

2222

25/33/33/3325/33/33/33

25/40/65/6525/40/65/65

25/40/65/6525/40/65/65

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/8025/40/70/80

25/40/70/10040/70/100

25/40/70/10040/70/100

4.55

6.86.6

1010

1415

2220

25/33/33/3325/33/33/35

25/40/65/6540/65/65

25/40/65/6540/65/65

25/40/70/8040/70/80

25/40/70/8040/70/80

25/40/70/8040/70/80

40/70/100 40/70/100 5 6.6 10 15 20 25/35/35/35 40/65/65 40/65/65 40/70/80 40/70/80 40/70/8040/7040/70

40/7040/70

55

6.96.9

1010

1515

2020

3535

40/6540/65

40/6540/65

40/7040/70

40/7040/70

40/7040/70

40/7040/70

40/7040/70

55

6.96.9

1010

1515

2020

3535

40/6540/65

40/6540/65

40/7040/70

40/7040/70

40/7040/70

70 70 5.4 7.2 10 15 20 35 65 65 70 70 707070

7070

55

6.86.6

1010

1515

2020

3535

6565

6565

7070

7070

7070

70 70 5.4 6.8 10 15 20 35 65 65 70 70 7070 70 5 6.6 10 15 20 35 65 65 70 70 70









In (A) 200 250 315 400 315 400I> (A)2) 2000 2500 3150 4000 3200 4000

Icn (kA) 45/70/100 45/70/100 45/70/100 45/70/100 45/70/100 45/70/100Discrimination limits (kA)

3VF4for motor protection

125160

12501600

40/70/10040/70/100

22

22

2.52.5

3.43.4

3.43.4

44

200250

20002500

40/70/10040/70/100

2.52.5

3.43.4

3.43.4

44

3VF4 125 2000 70 3 4 5for starter combinations 160

20025003000

7070

33

4 55

3VF4 250 3000 40/70 3 5Non-automatic circuit-breakers

3VF5 200 2000 45/70/100 2.4 3.4 3.4 4for line protection 250

31525003150

45/70/10045/70/100

2.4 3.43.4

3.4 44

400 4000 45/70/100

3VF5for motor protection 315 4800 40/65

3VF5 200 3000 65 3.4 5for starter combinations 250

31538004800

6565

3VF5Non-automatic circuit-breakers 315 4800 40/65

3VF6 315 3200 45/70/100for line protection 400

50040005000

45/70/10045/70/100

630800

63006400

45/70/10050

3VF6for motor protection 500 7500 40/65

3VF6for starter

315400

48006000

6565

combinations 500 7500 65

3VF6Non-automatic 500 7500 40/65circuit breakers

3VF7for line protection

8001250

1500015000

50/70/10050/70/100

3VF7 800 15000 50/70Non-automaticcircuit-breakers

1250 15000 50/70

3VF8 1600 20000 70/100for line protection 2000 20000 70/100

3VF8Non-automatic

16002000

2000020000

6565

circuit-breakers

1) In 240/415 V, 50 Hz networks the discrimination limits must be reduced by 10%.2) The discrimination values for the upstream circuit-breakers apply for adjustable releases at maximum setting.





12



3VF7 3WN1

500 630 800 800-1250 1600-2500 315 400 500 630 800 10005000 6300 6400 15000 20000 3780 4800 6000 7560 9600 12000

45/70/100 45/70/100 50 50/70/100 70/100 65 65 65 65 65 65

44

5.14.9

5.14.9

3333

40/65/6540/65/65

5.45.3

7.57.5

1010

1413

2222

3333

44

4.94.9

4.94.9

3333

40/65/6540/65/65

5.35.3

7.57.5

1010

1313

2222

3333

5 6 6 27 58 6.3 8.3 10 13 19 2855

66

66

2727

5858

6.36.3

8.38

1010

1313

1919

2828

5 6 6 27 35/58 6.2 8 10 13 19 28

4 4 4 30 45/60/60 5.2 7.7 10 13 20 3044

44

44

2828

45/60/6045/60/60

5.2 7.37.3

9.89.8

1313

1919

2828

4 4 28 45/60/60 9.8 13 19 28

5 5 27 40/46 10 13 18 28

5 5 5 27 46 6 7.7 10 13 18 285 5

555

2727

4646

7.4 1010

1212

1818

2828

5 5 27 40/46 10 12 18 28

4.4 4.4 21 35 6.8 9.1 12 16 224.4 4.4 21

213535

9.1 1212

1616

2222

21 3535

16 2222

17 30 13 17

1717

3030

9 11 1313

1717

17 30 13 17






Downstream circuit-breakers Upstream circuit-breakers3WN1

In (A) 1250 1600 2000 2500 3200 4000 5000 6300I> (A)2) 15000 19200 2400 30000 37800 48000 60000 75600

Icn (kA) 80 80 80 80 100 100 100 100Discrimination limits (kA)


125160

12501600

40/70/10040/70/100

6262

40/70/8040/70/80

40/70/8040/70/80

40/70/8040/70/80

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

200250

20002500

40/70/10040/70/100

6226

40/70/8040/70/80

40/70/8040/70/80

40/70/8040/70/80

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

3VF4 125 2000 70 48 70 70 70 70 70 70 70for startercombinations

160200

25003000

7070

4848

7070

7070

7070

7070

7070

7070

7070

3VF4 250 3000 40/70 35/48 40/70 40/70 40/70 40/70 40/70 40/70 40/70Non-automaticcircuit-breakers

3VF5 200 2000 45/70/100 40/50 45/70/80 45/70/80 45/70/80 45/70/100 45/70/100 45/70/100 45/70/100for line protection 250

31525003150

45/70/10045/70/100

40/5040/50

45/70/8045/70/80

45/70/8045/70/80

45/70/10045/70/100

45/70/8045/70/80

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

400 4000 45/70/100 40/50 45/70/80 45/70/80 45/70/100 45/70/80 45/70/100 45/70/100 45/70/100

3VF5for motor protection 315 4800 40/65 40 40/65 40/65 40/65 40/65 40/65 40/65 40/65

3VF5 200 3000 65 40 65 65 65 65 65 65 65for startercombinations

250315

38004800

6565

4040

6565

6565

6565

6565

6565

6565

6565

3VF5Non-automaticcircuit-breakers

315 4800 40/65 40 40/65 40/65 40/65 40/65 40/65 40/65 40/65

3VF6 315 3200 45/70/100 32 45/55/55 45/70/80 45/70/80 45/70/100 45/70/100 45/70/100 45/70/100for line protection 400

50040005000

45/70/10045/70/100

3232

45/55/5545/55/55

45/70/8045/70/80

45/70/8045/70/80

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

45/70/10045/70/100

630800

63006400

45/70/10050

3232

45/55/5550

45/70/8050

45/70/8050

45/70/10050

45/70/10050

45/70/10050

45/70/10050

3VF6for motor protection 500 7500 40/65 28 40 40/60 40/65 40/65 40/65 40/65 40/65

3VF6for starter

315400

48006000

6565

2828

4040

6060

6565

6565

6565

6565

6565

combinations 500 7500 65 28 40 60 65 65 65 65 65

3VF6Non-automatic 500 7500 40/65circuit-breakers


8001250

1500015000

50/70/10050/70/100

3VF7 800 15000 50/70Non-automaticcircuit-breakers

1250 15000 50/70

3VF8 1600 20000 70/100for line protection 2000 20000 70/100

3VF8Non-automatic

16002000

2000020000

6565

circuit-breakers

1) In 240/415 V, 50 Hz networks the discrimination limits must be reduced by 10%.2) The discrimination values for the upstream circuit-breakers apply for adjustable releases at maximum setting.





12



3WN6

315 400 500 630 800 1000 1250 1600 2000 2500 32004725 6000 7500 9450 12000 15000 18750 24000 24000 37500 4800065 65 65 65 65 65 65 65 80 80 80

4.34

5.35.2

7.27.2

1010

1413

2019

3030

40/60/6040/60/60

40/70/8040/70/80

40/70/8040/70/80

40/70/8040/70/80

44

5.25.2

7.27.2

1010

1313

1919

3030

40/60/6040/60/60

40/70/8040/70/80

40/70/8040/70/80

40/70/8040/70/80

4.9 6 7.7 10 13 18 25 45 70 70 704.94.9

66

7.77.7

1010

1313

1818

2525

4545

7070

7070

7070

4.8 6 7.7 10 13 18 25 40/45 40/70 40/70 40/70

4 5 7.3 10 13 20 29 45/55/55 40/70/80 40/70/80 40/70/804 5

577

99

1212

1818

2727

45/50/5045/50/50

40/70/8040/70/80

40/70/8040/70/80

40/70/8040/70/80

7 9 12 18 27 45/50/50 40/70/80 40/70/80 40/70/80

10 13 18 26 40 40/65 40/65 40/65

4.7 6 7.4 10 13 18 26 40 65 65 654.7 5.9

5.97.27.2

1010

1111

1717

2626

4040

6565

6565

6565

5.9 7.2 10 11 17 26 40 40/65 40/65 40/65

4.5 6.5 9 11 15 20 32 40/50/50 40/70/80 40/70/806.5 9

91111

1515

2020

3232

40/50/5040/50/50

40/70/8040/70/80

40/70/8040/70/80

1515

2020

3232

40/50/5050

40/70/8050

40/70/8050

9 10 12 17 28 34 40/55 40/65

99

1010

1212

1717

2828

3434

5555

6565

9 10 12 17 28 34 55 65

9 10 12 17 28 34 40/55 40/65

1616

2222

2828

4545

16 22 28 4516 22 28 45

3333

3333





Series connection miniature circuit-breakers – miniature circuit-breakers AC 230 V, 50 HzIn distribution networks without any fuses, mccb’s provide selectivity between themselves within close limits..Downstream miniature circuit-breakers Upstream miniature circuit-breakers

5SX4...-7 5SX7...-7 5SX7...-8In (A) 20 25 32 40 50 63 80 100 63 80 100

I> (A) 200 250 320 400 500 630 800 1000 945 1200 1500Icn (kA) 10 10 10 10 10 10 10 10 10 10 10

Discrimination limits (kA)5SX2

5SX4

6

10

30

50

6/10

6/10

0.2

0.2

0.2

0.2

0.3

0.3

0.5

0.5

0.5

0.5

0.5

0.5

0.8

0.8

1.5

1.2

1.5

1.5

3

3

5

4B-Charakteristics 13

16

65

80

6/10

6/10

0.2

0.2

0.2

0.2

0.3

0.3

0.4

0.4

0.5

0.5

0.5

0.5

0.8

0.8

1.2

1.2

1.5

1.5

2

2

3

320

25

100

125

6/10

6/10

0.2 0.3 0.4

0.4

0.5

0.4

0.5

0.4

0.8

0.6

1.2

1.2

1.5

1.5

2

1.5

3

332

40

160

200

6/10

6/10

0.4 0.4

0.4

0.4

0.4

0.6

0.6

1.2

1.2

1.2

1.2

1.5

1.5

3

2.550 250 6/10 0.4 0.6 1 1.2 1.5 2.5

5SX2

5SX4

0.5

1

5

10

6/10

6/10

0.2

0.2

0.3

0.3

0.5

0.5

0.8

0.8

0.8

0.8

0.8

0.8

1.2

1.2

4

4

5

5

6/10

6/10

6/10

6/10C-Charakteristics 1.5

2

15

20

6/10

6/10

0.2

0.2

0.3

0.3

0.5

0.5

0.8

0.8

0.8

0.8

0.8

0.8

1.2

1.2

4

4

5

5

6/10

6/10

6/10

6/103

4

30

40

6/10

6/10

0.2

0.2

0.2

0.2

0.3

0.3

0.5

0.5

0.5

0.5

0.5

0.5

0.8

0.8

1.5

1.5

1.5

1.5

3

3

4

46

8

60

80

6/10

6/10

0.2

0.2

0.2

0.2

0.3

0.3

0.5

0.4

0.5

0.5

0.5

0.4

0.8

0.6

1.5

1.2

1.5

1.5

3

2.5

4

310

13

100

130

6/10

6/10

0.2

0.2

0.2

0.2

0.3

0.3

0.4

0.4

0.4

0.4

0.4

0.4

0.6

0.6

1.2

1.2

1.5

1.2

2.5

2

3

316

20

160

200

6/10

6/10

0.2 0.2

0.2

0.3

0.3

0.4

0.4

0.4

0.4

0.4

0.4

0.6

0.6

1.2

1.2

1.2

1.2

2

2

3

325

32

250

320

6/10

6/10

0.3

0.3

0.4

0.4

0.4

0.4

0.6

0.6

1

1

1

1

1.5

1.5

2.5

2.540

50

400

500

6/10

6/10

0.8

0.8

1

1

1.5

1.5

2

263 630 6/10 0.8 1.2 1.5

In = Rated currentI> = Response current for instantaneous short-circuit releasesIcn = Rated breaking capacity acc. to EN 60 898 for mccb´s




12



Series connection circuit-breakers – miniature circuit-breakers AC 380-420 V, 50 Hz

Downstream miniature circuit-breakers Upstream circuit-breakers3VF2for line protection

In (A) 16 20 25 32 40 45 50 63 70 80 90 100I> (A) 350 450 500 600 750 750 800 800 900 900 1000 1000Icn (kA) 18 18 18 18 18 18 18 18 18 18 18 18

Discrimination limits (kA)5SX2 ...-5A-Charakteristics

210

66

0.70.3

1.20.5

1.50.6

2.80.6

60.8

60.8

61

61

61.2

61.2

61.5

61.5

1632

66

0.4 0.6 0.6 0.80.8

0.80.8

10.8

10.8

1.21

1.21

1.21.2

1.21.2

40 6 0.8 0.8 0.8 0.8 1 15SX4 1..-6 6 6/10 0.3 0.5 0.6 0.8 1 1 1 1 1.2 1.2 1.5 1.5B-Charakteristics 10

136/106/10

0.30.3

0.40.4

0.50.5

0.70.6

10.8

10.8

11

11

1.21.2

1.21.2

1.51.2

1.51.2

1620

6/106/10

0.4 0.50.5

0.60.6

0.80.8

0.80.8

11

11

1.21.2

1.21.2

1.21.2

1.21.2

2532

6/106/10

0.5 0.80.8

0.80.8

0.80.8

0.80.8

11

11

1.21.2

1.21.2

4050

6/106/10

0.8 0.80.8

11

11

1.21

1.21

5SX4 ...-7C-Charakteristics

0.51

6/106/10

0.50.5

0.70.7

0.80.8

11

1.51.5

1.51.5

1.51.5

1.51.5

33

33

4.84.8

4.84.8

1.62

6/106/10

0.50.5

0.70.7

0.80.8

11

1.51.5

1.51.5

1.51.5

1.51.5

33

33

4.84.8

4.84.8

34

6/106/10

0.30.3

0.40.4

0.50.5

0.70.7

11

11

11

11

1.21.2

1.21.2

1.51.5

1.51.5

68

6/106/10

0.30.2

0.40.4

0.50.5

0.70.6

10.8

10.8

10.8

10.8

1.21

1.21

1.51.2

1.51.2

1013

6/106/10

0.20.2

0.40.4

0.50.5

0.60.6

0.80.8

0.80.8

0.80.8

0.80.8

11

11

1.21.2

1.21.2

1620

6/106/10

0.4 0.50.5

0.60.6

0.80.8

0.80.8

0.80.8

0.80.8

11

11

1.21.2

1.21.2

2532

6/106/10

0.5 0.70.7

0.70.7

0.80.8

0.80.8

0.80.8

0.80.8

11

11

4050

6/106/10

0.7 0.70.7

0.80.8

0.80.8

10.8

10.8

63 6 0.8 0.8

5SX2 ...-8 2 6 0.5 0.6 0.6 0.8 1.2 1.2 1.5 1.5 1.5 1.5 2.3 2.3D-Charakteristics 6

1066

0.30.3

0.40.4

0.50.4

0.60.6

0.80.8

0.80.8

10.8

10.8

1.21

1.21

1.51.2

1.51.2

1632

66

0.5 0.6 0.6 0.70.7

0.70.7

0.80.8

0.80.8

10.8

10.8

4050

66

5SQ2B-Charakteristics

610

33

0.30.2

0.40.3

0.50.4

0.70.5

10.7

10.7

10.7

10.7

1.20.8

1.20.8

1.51

1.51

1620

33

0.3 0.30.3

0.40.4

0.60.6

0.60.6

0.70.7

0.70.7

0.80.8

0.80.8

0.80.8

0.80.8

2532

33

0.4 0.60.6

0.60.6

0.60.6

0.60.6

0.70.7

0.70.7

0.80.8

0.80.8

5SQ2C-Charakteristics

0.51

33

2.92.9

33

33

33

33

33

33

33

33

33

33

33

1.62

33

2.92.9

33

33

33

33

33

33

33

33

33

33

33

34

33

0.30.3

0.40.4

0.50.5

0.70.7

11

11

11

11

1.21.2

1.21.2

1.51.5

1.51.5

68

33

0.30.2

0.40.4

0.50.4

0.70.5

10.7

10.7

10.7

10.7

1.20.8

1.20.8

1.51

1.51

1016

33

0.2 0.30.3

0.40.3

0.50.4

0.70.6

0.70.6

0.70.7

0.70.7

0.80.8

0.80.8

10.8

10.8

2025

33

0.3 0.40.4

0.60.6

0.60.6

0.70.6

0.70.6

0.80.7

0.80.7

0.80.8

0.80.8

3240

33

0.6 0.6 0.6 0.6 0.70.7

0.70.7

0.80.7

0.70.7

5063

33

0.7 0.70.7

0.70.7

0.70.7

In = Rated currentI> = Response current for instantaneous short-circuit releasesIcn = Rated short-circuit breaking capacity acc. to IEC 60 947-2 for circuit-breakers.

Rated breaking capacity acc. to EN 60 898 for mccb’s






Series connection circuit-breakers – circuit-breakers AC 400 V, 50 Hz1)

Downstream circuit-breakers Upstream circuit-breakers3VF3for line protection adjustable

3VF3fixed setting

In (A) 50 63 80 100 125 160 200 16 20I> (A)2) 500 630 800 1000 1250 1600 2000 400 400

Icn (kA) 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 25/40/70 25/40/70Discrimination limits (kA)3)


1620

350450

1818

11

11

1.91.9

2.52.5

2532

500600

1818

11

11

1.91.9

2.52.5

4045

750750

1818

1.81.8

2.32.3

5063

800800

1818

1.81.8

2.32.3

7080

900900

1818

1.81.8

2.32.3

90100

10001000

1818

1.81.8

2.32.3


Downstream circuit-breakers Upstream circuit-breakers3VF4for line protection fixed setting

In (A) 125 160 200 250I> (A)2) 1250 1600 2000 2500

Icn (kA) 40/70/100 40/70/100 40/70/100 40/70/100Discrimination limits (kA)3)


1620

350450

1818

1.11.1

2.32.3

2.42.4

2532

500600

1818

1.11.1

2.32.3

2.42.4

4045

750750

1818

2.12.1

2.12.1

5063

800800

1818

2.12.1

2.12.1

7080

900900

1818

2.12.1

2.12.1

90100

10001000

1818

2.12.1

2.12.1

Downstream circuit-breakers Upstream circuit-breakers3VF5adjustable4)

3VF6fixed setting

In (A) 200 250 315 400 400 315 400I> (A)2) 2000 2500 3150 4000 4000 3200 4000

Icn (kA) 45/70/100 45/70/100 45/70/100 45/70/100 45/70/100 45/70/100 45/70/100Discrimination limits (kA)3)


1620

350450

1818

2.12.1

2.12.1

2.52.5

3.83.8

44

5.25.2

7.97.9

2532

500600

1818

2.12.1

2.12.1

2.52.5

3.83.8

44

5.25.2

7.97.9

4045

750750

1818

1.91.9

1.91.9

2.52.5

3.43.4

44

4.34.3

55

5063

800800

1818

1.91.9

1.91.9

2.52.5

3.43.4

44

4.34.3

55

7080

900900

1818

1.91.9

1.91.9

2.52.5

3.43.4

44

4.34.3

55

90100

10001000

1818

1.91.9

1.91.9

2.52.5

3.43.4

44

4.34.3

55

1) In 240/415 V, 50 Hz networks the discrimination limits must be reduced by 10%.2) The discrimination values for the upstream circuit-breakers apply for adjustable releases at maximum setting.3) The corresponding value is dependant on the breaking capacities of the upstream and downstream breakers (See page 12/4).4) For 3VF5, 3VF6 and 3VF7 the delay time td must also be set to 100 ms or higher.




12

25 32 40 50 63 80 100 125 160 200 225400 400 400 400 500 630 800 1000 1280 2400 2400

25/40/70 25/40/70/100 25/40/70/100 25/40/70/100 25/40/70/100 25/40/70/100 25/40/70/100 25/40/70/100 25/40/70/100 40/70/100 40/70/100

11

2.52.5

2.52.5

11

2.52.5

2.52.5

2.52.5

2.52.5

2.52.5

2.52.5

2.52.5

2.52.5

2.52.5

2.52.5



3VF4adjustable

3VF5fixed setting

125 160 200 250 200 250 315 4001250 1600 2000 2500 2000 2500 3150 4000

40/70/100 40/70/100 40/70/100 40/70/100 45/70/100 45/70/100 45/70/100 45/70/100

1.11.1

2.32.3

2.42.4

2.12.1

2.12.1

2.52.5

44

1.11.1

2.32.3

2.42.4

2.12.1

2.12.1

2.52.5

44

2.12.1

2.12.1

1.91.9

1.91.9

2.52.5

44

2.12.1

2.12.1

1.91.9

1.91.9

2.52.5

44

2.12.1

2.12.1

1.91.9

1.91.9

2.52.5

44

2.12.1

2.12.1

1.91.9

1.91.9

2.52.5

44

3VF6adjustable4)

3VF7adjustable4)

500 630 800 315 400 500 630 630 800 12505000 6300 6400 3200 4000 5000 5500 6300 15000 15000

45/70/100 45/70/100 50 45/70/100 45/70/100 45/70/100 45/70/100 45/70/100 50/70/100 50/70/100

7.97.9

1010

1010

5.25.2

7.97.9

7.97.9

5.85.8

1010

1818

1818

7.97.9

1010

1010

5.25.2

7.97.9

7.97.9

5.85.8

1010

1818

1818

55

66

66

4.34.3

55

55

4.94.9

66

1818

1818

55

66

66

4.34.3

55

55

4.94.9

66

1818

1818

55

66

66

4.34.3

55

55

4.94.9

66

1818

1818

55

66

66

4.34.3

55

55

4.94.9

66

1818

1818





Series connection circuit-breakers – circuit-breakers AC 400 V, 50 Hz1)

Downstream circuit-breakers Upstream circuit-breakers3VF82)for line protection adjustable

In (A) 1600 2000 2500I> (A)3) 20000 20000 20000

Icn (kA) 70/100 70/100 70/100Discrimination limits (kA)4)


1620

350450

1818

1818

1818

1818

2532

500600

1818

1818

1818

1818

4045

750750

1818

1818

1818

1818

5063

800800

1818

1818

1818

1818

7080

900900

1818

1818

1818

1818

90100

10001000

1818

1818

1818

1818

Downstream circuit-breakers Upstream circuit-breakers3WN1for line protection

3WN6

In (A) 4000 5000 6300 315 400 500 630I> (A)3) 48000 60000 75600 4725 6000 7500 9450

Icn (kA) 100 100 100 65 65 65 65Discrimination limits (kA)4)


1620

350450

1818

1818

1818

1818

6.76.7

10.310.3

12.812.8

1818

2532

500600

1818

1818

1818

1818

6.76.7

10.310.3

12.812.8

1818

4045

750750

1818

1818

1818

1818

5.55.5

7.37.3

9.29.2

14.814.8

5063

800800

1818

1818

1818

1818

5.55.5

7.37.3

9.29.2

14.814.8

7080

900900

1818

1818

1818

1818

5.55.5

7.37.3

9.29.2

14.814.8

90100

10001000

1818

1818

1818

1818

5.55.5

7.37.3

9.29.2

14.814.8


1) In 240/415 V, 50 Hz networks the discrimination limits must be reduced by 10%.2) For 3VF8 the delay time td must also be set to 100 ms or higher.3) The discrimination values for the upstream circuit-breakers apply for adjustable releases at maximum setting.4) The corresponding value is dependant on the breaking capacities of the upstream and downstream breakers (See page 12/4).




12

3WN1for line protection

315 400 500 630 800 1000 1250 1600 2000 2500 32003780 4800 6000 7560 9600 12000 15000 19200 24000 30000 3780065 65 65 50/80 50/80 50/80 50/80 50/80 65/80 65/80 100

10.510.5

13.213.2

1818

1818

1818

1818

1818

1818

1818

1818

1818

10.510.5

13.213.2

1818

1818

1818

1818

1818

1818

1818

1818

1818

7.47.4

9.59.5

15.215.2

1818

1818

1818

1818

1818

1818

1818

1818

7.47.4

9.59.5

15.215.2

1818

1818

1818

1818

1818

1818

1818

1818

7.47.4

9.59.5

15.215.2

1818

1818

1818

1818

1818

1818

1818

1818

7.47.4

9.59.5

15.215.2

1818

1818

1818

1818

1818

1818

1818

1818



800 1000 1250 1600 2000 2500 320012000 15000 18750 24000 30000 37500 48000

65 65 65 65 80 80 80

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818

1818




Back-up protection values

Series connection circuit-breakers – miniature circuit-breakers AC 400 V, 50 HzAC 230/400 V, 50 Hz

Downstream miniature circuit-breakers Upstream circuit-breakers3VF3adjustable

3VF3fixed setting

In (A) 50 63 80 100 125 160 50 63 80 100 125 160I> (A)

500 630 800 1000 1250 1600 400 500 630 800 1000 1280Icn (kA)

40/70100

40/70100

40/70100

40/70100

40/70100

40/70100

40/70100

40/70100

40/70100

40/70100

40/70100

40/70100

Back-up protection up to (kA)5SX25SX4

0.5-23

6 kA/10 kA

5035

5035

5035

5035

5035

5035

5035

5035

5035

5035

5035

5035

A-CharakteristicsB-Charakteristics

46

3515

3515

3515

3515

3515

3515

3515

3515

3515

3515

3515

3515

C-CharakteristicsD-Charakteristics

813

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1620

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

2532

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

4050

10 1010

1010

1010

1010

1010

10 1010

1010

1010

1010

1010

In = Rated currentI> = Response current for instantaneous short-circuit releasesIcn = Rated short-circuit breaking capacity acc. to IEC 60 947-2 for circuit-breakers

Rated breaking capacity acc. to EN 60 898 for mccb’s

Series connection circuit-breakers – circuit-breakers AC 400 V, 50 Hz


In (A) 50 63 80 100 125 160 125 160 200 250I> (A) 400 630 800 1000 1250 1600 1250 1600 2000 2500

Icn (kA) 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100 40/70/100Back-up protection up to (kA)

3VF3 50...

400...

4070

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

160 1600 100 40/70/100 40/70/100 40/70/100 40/70/1003VF4 125 1250 40

...250

...2500

70100

3VF5 200...

2000...

4570

400 4000 1003VF6 315 3200 45

...630

...6300

70100




12

3VF4 3VF5 3VF6 3VF7 3VF8 3WN1/3WS1

125 160 200 250 200 250 315 400 315 ... 630 400 ...1250 1600 ... 2000 315 ... 6300

1250 1600 2000 2500 2000 2500 3150 4000 3200 ...6300 15000 20000 3780 ... 75600

40/70/100 40/70/100 40/70/100 40/70/100 45/70/100 45/70/100 45/70/100 45/70/100 45/70/100 50/70/100 70/100 65 ... 100

5035

5035

5035

5035

5035

5035

5035

5035

5035

5035

5035

5035

3515

3515

3515

3515

3515

3515

3515

3515

3515

3515

3515

3515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

1515

8/108/10

8/108/10

8/108/10

8/108/10

8/108/10

8/108/10

8/108/10

8/108/10

8/108/10

8/108/10

8/108/10

8/108/10


Back-up protection values

3VF5 3VF6 3VF7 3VF8

200 250 315 400 315 400-630 400-1250 1600-20002000 2500 3150 4000 3200 4000-6300 15000 20000

45/70/100 40/70/100 45/70/100 45/70/100 45/70/100 45/70/100 50/70/100 70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

45/70/10045/70/100

45/65/10045/65/100

50/70/6550/70/65

65/6570/70

40/70/100 40/70/100 40/70/100 40/70/100 45/70/100 45/65/100 50/70/100 70/10040/70/100 40/70/100 40/70/100 40/70/100 45/70/100 45/65/100 50/65/65 65/6540/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

40/70/10040/70/100

45/70/10045/70/100

45/65/10045/65/100

50/65/7050/65/70

70/7070/100

45/70/10045/70/100

45/70/10045/70/100

50/65/6550/70/70

65/6570/70

45/70/100 45/70/100 50/70/70 70/10065 65/657070

70/7070/100


Discrimination and Back-up protection

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Transcript of Discrimination and Back-up protection