Emax Brochure

7/27/2019 Emax Brochure

http://slidepdf.com/reader/full/emax-brochure 1/20

604060/011 e n

J uly '99

ABB SACE L.V.

SACE Emax.A system that’s opento any solution.



2

SACE Emax: the reference standardin air circuit-breakers

SACE Emax low-voltage air circuit-breakers

have been designed and manufactured by

ABB SACE L.V. with the aim of satisfying the

most advanced mark et requirements.

Building on the highly-acclaimed results

obtained by the SACE Isomax S series of

moulded-case circuit-breakers, this new series

extends the characteristics of safety, reliability,

integration and coordination that distinguish

the entire ABB SACE L.V. low-voltage productfamily to high rated current values.

T he SACE Emax series won the favour of users

on all markets as soon as it was launched,

proving itself to be the perfect solution to the

requirements of even the most technologically

sophisticated installations.

T hanks to its new versions and performance

features, combined with a further-increased

range of accessories, SACE Emax makes it

possible to anticipate the design trends of the

future.



3

The SACE Emax series benefits from

ABB SACE L.V. ’s experience in the manufacture

of ai r circuit- breakers, which began in the late

Fifties wi th the SACE O tomax series - the first

air circuit-breaker designed and manufactured

entirely in I taly. The series comprised a

swi tchgear range wi th rated currents of 1250 to

5000 amps and a maxi mum breaking capacity

of 100 kA .

The success of this fi rst series was echoed by

that of the G 30 series in the Seventies, which

was the first to offer electronic releases

alongside traditional electromagnetic releases.

T his takes us to 1979, when AB B SACE L.V .

started manufacturing the SACE Novomax

series - the first high-performance current-

limi ting air circuit-breakers on the market.

1989 marked the arrival of the SACE

M egamax, a signifi cant step forwards that

introduced PR1 mi croprocessor-based releases

installed on-board the circuit-breakers. T hanks

to this innovation, air circuit-breakers were

transformed from a simple component to anintegral and sophisticated part of a complex

“system” .

T he strengths of the current SACE Emax series

build on over half a century’s development

and are the logical consequence of a design

and manufacturing philosophy firmly focused

on innovation, safety and reliability.

1955Otomax:

Iu = 1250 … 5000A,

Icu = up to 100kA

1971G30: … from

thermomagnetic to

electronic releases

1979Novomax: increased

performance (6300 A)

and introduction of

current-limiting circuit-

breakers

1989Megamax: new design

of microprocessor-

based releases (PR1)

TODAY

Emax: technological

progress with high-performance.

Iu = 800 … 6300A,

Icu = 40 ... 150kA.

Maximised modular

strengths and

standardisation.

3



4

Continually developing qualityand performance

The comp act

dimensions of a

SACE Emax are a result of its perfect

integration of

comp onents and

performance

• Customised solutions with safety in mind;

- possibili ty of using two opening coi ls ( dual

O C) for special environments such as

hospitals

- SACE SO R T est Unit for check ing that all

the components of the opening coil are

work ing correctly at regular intervals;

• Ease of moni toring using accessories for the

electroni c releases:

- PR010/T test, programming and parameter

readout unit

- PR010/K signalling unit that also provides

load control function.

Sliding contacts

Microprocessor-basedprotection release

Pushbutton for manual

opening operation

Lever for loading theclosing springs manually

Mechanical indicatorshowing circuit breakeropen “O” or closed “I”

Compartment for rackingin/out operation

Indicator showingsprings loaded orreleased

Pushbutton formanual closingoperation

T he results achieved by ABB SACE L.V . with

the SACE Emax series speak louder than

words regarding the continual progress made

by the range through important new

developments such as:

• Ci rcuit-breakers for special applications with

voltages of up to 1000 V in alternating

current;

• Range of direct current switch-

disconnectors;

• Range of switchgear in accordance with

ANSI standards also certified by the

Underwriter Laboratories in conformity wi th

UL Standard 1066;

• T wo possible ways of calculating the earth

fault current:

- Residual ( using function G of the release)

- Source Ground Return (wi th external

toroid coil on the transformer star centre’s

earth connection) ;

4

Anti-insertion

lock

Earthing

contact

Safetyshutters



5

A complete range to satisfy any installation

The SACE Emax series is offered in a complete

range of rated currents and available as five

different models in fixed, withdrawable, three

and four-pole versions. Characterised by

uninterrupted rated currents of from 800 to

6300 amps and breaking capacities of up to

150 kA, the series is able to satisfy the most

demanding requirements of modern industrial

and naval installations. Each model is available

in a variety of di fferent circuit-breaker options

that have the same dimensions but different

rated currents and breaking capacities. Look ed

at from a manufacturing and use standpoint,

SACE Emax circuit-breakers can be divided into

two main categories of use: selective circuit-

breakers and current-limi ting circuit-breakers.

The former make it possible to implement

different types of selectivi ty thanks to high

short-time withstand current values and the

SAC E PR111 and PR112 overcurrent releases.

The different types of selectivi ty available are:

current, energy, time and zone.

Series

Breaking capacity

B= Base

N= Normal

S= Standard

H= High breaking

capacity

V= Very high breaking capacity

L= Current-limiting

circuit-breaker

Rated uninterrupted current IuModel

T he current-limi ting circuit-breakers mak e it

possible to achieve a considerable reduction

in the peak current compared to the

prospective current and, therefore, to limit the

specifi c let-through energy. T he resultant

benefits include a reduction in electrodynamic

and thermal stresses, consequently mak ing i t

possible to

reduce the

dimensioning

of the

installation.

5



6

Electrical characteristics

SACE Emax E1 SACE Emax E2Voltage

Rated service voltage Ue 690 ~ / 250 ~ [V]

Rated insulation voltage Ui 1000 [V]

Rated impulse withstand voltage Uimp 12 [kV]

Frequency f 50-60 [Hz]

Number of poles 3-4

Version Fixed - Withdrawable

Data common to the entire range

B

800

1250

100

40

40

36

36

40

40

36

36

36

-

84

84

75,6

B

296/386324/414

42/50

65/80

Performance level

Currents

Rated uninterrupted Iu [A]

current (at 40°C) [A]

[A]

[A]

[A]

Capacity of neutral pole for four-pole circuit -breakers [ %I u]

Rated ul timate short -c ir cui t Icu 220 /230 /380 /400 /415 V~ [kA]

breaking capacity 440 V~ [kA]

500/660/690 V~ [kA]

250 V– [kA]

Rated service short-circuit I cs 220/230/ 380/ 400/ 415 V ~ [ kA ]

breaking capacity 440 V~ [kA]

500/660/690 V~ [kA]

250 V– [kA]

Rated short-time Icw (1 s) [kA]

withstand current Icw (3 s) [kA]

Rated short-circuit making capacity Icm 220/230/380/400/415 V~ [kA]

(peak value) 440 V~ [kA]

500/660/690 V~ [kA]

Category of use (CEI EN 60947-2)

Isolation behaviour (CEI EN 60947-2)

Dimensions

Fixed: H = 418 mm -D = 302 mm L (3/4 poles) [mm]Withdrawable: H = 461 mm - D = 396,5 mm L(3/4 poles) [mm]

Weight (circuit-breaker complete with releases and CT, excluding accessories)

Fixed 3/4 poles [kg]

Withdrawable 3/4 poles (including fixed part) [kg]

(1) A version with a 4000A neutral pole current capacity is available

(2) The performance at 500 V is 100 kA

B N L

1600 1250 1250

2000 1600 1600

2000

100 100 100

40 65 130

40 65 110

40 55 85

40 55 -

40 65 130

40 65 110

40 55 65

40 55 -

40 55 10

40 40 -

84 143 286

84 143 242

84 121 187

B B A

296/386324/414

46/55 46/55 45/53

72/89 72/89 70/87

E1 B E2 B-N E2 L

Rated uninterrupted current (at 40ºC), Iu [A]

Mechanical life

with regular routine maintenance [No. operations x 1000]

Frequency of operations [Operations per hour]

Electrical life (440 V~) [No. operations x 1000]

Frequency of operations [Operations per hour]

800 1250 1250 1600 2000 1250 1600 1250 16

25 25 25 25 25 20 20 20 2

60 60 60 60 60 60 60 60 6

10 10 15 12 10 4 3 12 1

30 30 30 30 30 20 20 20 2

Circuit-breaker model E1 E2



7

SACE Emax E3 SACE Emax E4 SACE Emax E6

N S H L

2500 1250 1250 2000

3200 1600 1600 2500

2000 2000

2500 2500

3200 3200

100 100 100 100

65 75 100 130

65 75 100 110

65 75 85 85

65 75 75 -

65 75 85 130

65 75 85 110

65 75 85 65

65 75 75 -

65 75 75 15

65 65 65 -

143 165 220 286

143 165 220 242

143 165 187 187

B B B A

404/530432/558

68/80 68/80 68/80 67/79

100/125 100/125 100/125 100/120

S H

4000 3200

4000

50 (1) 50

75 100

75 100

75 85(2)

75 100

75 100

75 100

75 85(2)

75 100

75 100

65 65

165 220

165 220

165 187

B B

566/656594/684

95/115 95/115

147/190 147/190

H V

5000 3200

6300 4000

5000

6300

50 50

100 150

100 150

100 100

100 100

100 125

100 125

100 100

100 100

100 100

- -

220 330

220 330

220 220

B B

782/908810/936

140/170 140/170

210/260 210/260

E3 N-S-H E3 L E4 S-H E6 H-V

1600 2000 2500 3200 2000 2500 3200 4000 3200 4000 5000 6300

20 20 20 20 15 15 15 15 12 12 12 12

60 60 60 60 60 60 60 60 60 60 60 60

10 9 8 6 2 1,8 7 5 5 4 3 2

20 20 20 20 20 20 10 10 10 10 10 10

E3 E4 E6

7



8

An intelligent and flexible answerto all your protection requirements

SACE PR111 and SACE PR112microprocessor-basedovercurrent releasesAlongside its modern series of ai r circuit-

breakers, A BB SACE L.V. presents a complete

and innovative range of microprocessor-based

electronic overcurrent releases, the SAC E

PR111 and PR112. Anyone installing SACE

Emax circuit-breakers has the option of

choosing the release that is best suited to thei rinstallation needs in any given situation,

together with the designer’s requirements

regarding safety and reliabil ity. T he advances

made by electrical installations implementing

distributed intelligence systems has made the

role played by releases increasingly important,

demanding that they offer:

• high operating precision;

• a wide range of settings;

• complete protection against all types of faults;

• measurement and monitoring of the main

electrical parameters;

• dialogue with supervision and control

systems such as SACE SD -View 810.

T hese functions are provided on SAC E Emax

circuit-breakers using the SACE PR111 and

PR112 microprocessor-based releases, whi ch

provide protection functions against overloads

( L) , short-circuit’s ( instantaneous I and

selective S) and earth faults ( G ) .

Maincharacteristics

Possibility of self-

powered operation

High operating precision

Sensitivity to true root-

mean-square value of the

current

Possibility of setting

neutral to 100% of the

phases with rated

currents up to 4000 A

Advanced

microprocessor

technology

(8-bit for PR111

and 16-bit for PR112)

Integrated dialogue unit

SACE PR111

SACE PR112

K eyswitch selector for choosingread only mode (R EAD ) or settingmode (EDIT)

L S I GL S I

PR111/P

L I

PR112/P

L S I G

PR112/PD

L S I

PR112/P

L S I

M icroprocessor faultindicator

Auxiliary powersupply indicator

Dialogue indicators

Prealarm/alarmindicators

C onnection toexternal unit(SACE PR010/Tand PR110/B)

Programming k eys

Liquid crystal display

R ating plate showing therated current of the CTs forneutral and the serialnumber of the release

Testpushbutton

P rotection functions foroperation indicators

R eleaseovertemperatureindicator

Reset button

PR112/PD

L S I G

8

PR111/PPR111/P



9

Main characteristics of the releases

Protection releases give circuit-breakers the intelligence to m anage the protect ion of circuits and

users.

L

S

I

G

Protection functions SACE PR111 SACE PR112

O verload protection with

inverse long time-delay trip • •

Selective short-circuit protectionwith inverse short

time-delay trip • •

Instantaneous short-circuit protection

with adjustable trip current threshold • •

R esidual • •

Earth fault protectionSource groundreturn •

Thermal memory for functions L and S •

Measurements

C urrents (phases, neutral and earth fault) •

Event and maintenance data marking

Event mark ing with time event occurred •

Events stored in chronological order •

C ounting of number of operations and contact wear •

Communication with centralisedsupervision and control system

(using dialogue unit)R emote setting of parameters,protection functions,

unit configuration and communication •

Transmission of measurements, statuses and

alarms from circuit-breaker to system •

Transmission of events and maintenance data

from circuit-breaker to system •

Self-test

Alarm and tripping for release overtemperature •

Alarm for microprocessor fault •

User interface

Parameter setting using DIP switches •

Parameter setting using keysand liquid crystal display •

Alarm indication for functions L and S •

C omplete management of prealarmsand alarms for all protection and

self-monitoring functions •

K ey for enabling usewith “READ” mode forconsultation only or “EDIT ” mode for

consultation and setting •

Load control (with auxiliary unit)

C onnection-disconnection of loadsin relation to the value of the current passing

through the circuit-breaker •

Zone selectivityC an be activated for protection functions S and G •

Earth fault protectionA number of different options are available for

earth fault protection:

• using protection function “G ” of the release:

in this case the earth current is calculated by

the release itself using the vector sum of the

phase and neutral currents ( “residual”

method)

• using a special toroid coi l that is installed onthe connection between the star centre and

earth of the MV/LV transformer, wi th direct

reading of the earth leakage current ( “Source

ground return”)

• using electronic residual-current relays from

a SACE RCQ switchboard with separate

toroid coil.

T his range of di fferent options makes it

possible to cover every earth fault protection

and selectivity requirement.



10

T he growing complexi ty of installations

together with the need for increasingly

efficient and safe swi tchgear has led A BB

SACE L.V . to develop uni ts that complete the

functions offered by a mi croprocessor-based

release, the “brains” of a circuit-breaker.

T he SACE P R010/T and SACE PR010/K units

are the result this product development

approach.

SACE PR010/T:fingertip controlT his unit is able to provi de test, programming

and parameter readout functions for SACE

Emax series protection releases.

T hanks to its compact dimensions, simplicity

of operation and handling, this unit is

particularly easy to use in all conditions, even

when the circuit-breaker i s installed. T he Test

function, which can be implemented using

both releases, mak es it possible to check all

the protection functions in two different ways,

either manually or automatically,

simultaneously monitoring whether the

mi croprocessor is operating correctly. I t is also

possible to store any test results of interest in

the unit itself and export them to a personal

computer using the “report download”

function. Parameters can only be set and read

out on the PR112 range of releases.

ABB SACE L.V. also supplies a floppy disk

with the unit containing the application

software for updating or adapting the Test

unit in line with the development of new

products.

SACE PR010/K T his is a signalling unit able to convert the

digital signals from the SACE PR112 release to

electric signals, thus making it possible to

monitor the status of the protection device,

including remotely. T he information provided

mainly concerns the alarm conditions of all

the protection functions and the release’s

alarm situations. T his unit also allows one to

implement a load control function that acts

directly on the operating means of other

circuit-breakers installed downstream.

T he “intelligence” of the unit resides in the

fact that i t is able to recognise the type of

release concerned, enabling it to configure

itself to suit the characteristics of the latter.

SACE PR010/K

Accessory units for overcurrentreleases:SACE PR010/T - SACE PR010/ K

SACE PR010/T



11

From releases to an integrated system

M icroprocessor-based releases offering

measurement and dialogue functions are the

final link in distributed control systems for low

and medium voltage electrical installations,

based on the use of intelligent units connected

to one another using a local network .

The new SACE PR112 releases also mak e it

possible to achieve integration in the “logic” of

the centralised management system of the

installations using circuit-breakers that are

suitable both for the protection and

automation of electrical i nstallations.

I t is possible to control and monitor the

following using the dialogue unit:

• circuit-breaker status

• protection function parameters

• number of operations ( opening/closing)

• value of the current interrupted

• operating status of the release

• prealarm/alarm indications

• operating mechanism (opening/closing).

The mi croprocessor-based protection releases

in the SACE PR112/PD series inserted in theSAC E SD -View 810 control system represent

ABB SACE L.V .’s basic answer for the control

and automation of electrical installations in

industry and the servi ce sector.

It is also possible to interface the SACE PR112/PD

release with the main

communication protocols

present on the mark et.

• circuit-breaker status• protection function

parameters• number of operations

(opening/closing)• value of the current

interrupted

• operating status ofthe release

• prealarm/alarmindications

• operatingmechanism (opening/ closing).

11

Main characteristics



12

Accessories: a standard rangeto make customising simpler

The entire series of

SACE Emax circuit-

breakers is served by a

single line of

accessories. In

particular, the electrical

accessories can be

used both in

alternating current and

direct current

applications, and are

always installed from

the front without the

need for any wiring.

The ease with w hich

the accessories can be

fitted also makes

installation operations

fast and safe, such

that even the end

customer can carry out

the customising

necessary in each

phase of an

installation’s life. Thecurrent transformers

for the different rated

currents of the

releases are extremely

easy to change,

including by the end

customer. What’s

more, conversion kits

are available to obtain

different terminal

solutions and versions.

12

IP 54 protection door

cover

Lock for open

position

Lock for circuit breaker in racked-in/

test isolated/racked-out position

G earmotor for automatic loading of

closing springs

Flange

Tamper-proof protective cover for

opening and closing pushbuttons



13

M echanical indication

of overcurrent releases

tripped

Duty releases

M echanical operation

counter

Electrical indication of

circuit-breaker op en/closed

Homopolar toroid for

earth conductor

C urrent transformer for

external neutral conductor

M echanical lock

for cell door

Interlock across

circuit-breakers

Padlock device

for shutters

Electronic time-lag device for

undervoltage release

15 additional auxiliary

contacts

C urrent

transformer

Electrical indication of

circuit-breaker racked in/

test isolated/racked out

13



14

These versions are based on the movi ngpart of the corresponding wi thdrawablecircuit-breaker on whi ch all the break ingcomponents and the operating mechanismhave been replaced by simple connectionsbetween the top and bottom contacts. T heyare used as no-load isolators in situationswhere this function is provided for in theinstallation.

These versions are simi lar to isolatingtrolleys but with the bottom or top isolatingcontacts replaced by connections that areconnected in a short-circuit and earthed.They are used by temporarily rack ing theminto the fixed part of a withdrawable circuit-breaker for earthing the top or bottomterminals before carrying out maintenance

operations on the external circuit.

Isolating trolley - CS

Earthing switch with making capacity - MTP

Earthing trolley - MT

T hese versions are based on the movingpart of the correspondi ng withdrawablecircuit-breaker without the overcurrentreleases and the top or bottom isolatingcontacts, which are replaced by connectionsthat short circuit and earth the phasesthrough the circuit-breaker. T he earthingcircuit is dimensioned for a short-timecurrent equal to 60% of the maxi mum I cwof the circuit-breaker on which it is based.T hey are used for earthing duringinspection or maintenance work on

installations where the earthing operationcould be performed in the presence of residual or return voltages.

D isconnectors only differ from automaticcircuit-breakers in not having anovercurrent release. T hey have the sameversions and range of accessori es.

Switch-disconnectors- MS

Derived versions



15

SACE Emax circuit-breakers for1000 V AC

The 1000 V AC circuit-breakers are based on

the standard range ( rated service voltage up to

690 V) and retain the same dimensions, use

the same accessories and have the same

“names” plus the ending “/E” . T hey are

available in fixed and withdrawable versions

with the three or four poles and areparticularly suitable for installation in special

environments such as mines, petrochemical

installations and for traction.

Electrical characteristics

Rated uninterrupted current Iu [A] 1600 2000 1250 1600 2000 1250 1600 2000 2500 3200 3200 4000

R ated service voltage U e [V] 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000

Rated ultimate short-circuit

breaking capacity Icu [kA ] 20 20 30 30 30 50 50 50 50 50 65 65

R ated service short-circuit

breaking capacity Ics [kA ] 20 20 30 30 30 50 50 50 50 50 65 65

R ated short-time

withstand current Icw [kA ] 20 20 30 30 30 50 50 50 50 50 65 65

E2B/E E2N/E E3H/ E E4H/E

Special versions

Other versions

SAC E Emax circuit-breakers can also besupplied to order in appropriate special

versions suitable for particularly aggressive

environments ( SO2 or H

2S, etc.) and for anti-

seismic installations.



16

The range comprises power circuit-breakers wi th their related accessories,

manufactured in accordance with ANSI standards C37.13, C37.16, C37.17

and C 37.50, and certified in conformity with the UL1066 standard ( Low

Voltage AC and D C Power Ci rcuit Breakers Used in Enclosures) .

T he UL Listed SACE Emax series is suitable for use in electrical

swi tchboards in accordance wi th the U L 1558 and U L 891 standards.

Performance level B-A B-A N-A N-A S-A H-A S-A H-A V-A H-A V-A

Currents

Rated continuous current [A] 800 1600 1200 2000 1200 1200 3200 3200 3200 4000 4000

[A] 1200 1600 2500 1600 1600 3600 3600 3600 5000 5000

[A] 2000 2000

[A] 2500 2500

Rated short circuit current 240 V [kA] 42 42 65 65 85 85 85 100 100 125 125

480 V [kA] 42 42 50 50 65 85 65 85 100 85 125

600 V [kA] 35 42 50 50 65 65 65 85 85 85 85

Rated short time current [kA] 35 42 50 50 65 65 65 85 85 100 100

Overall dimensions

Fixed: H= 418 mm / 16.46 in

D= 302 mm / 11.89 inW (3 poles) [mm/in] 296/11.65 296/11.65 404/15.91 566/22.28 782/30.79

Withdrawable: H= 461 mm /18.15 in

D= 396,5 mm /15.61 in

W (3 poles) [mm/in] 324/12.76 324/12.76 432/17.01 594/23.39 810/31.89

Weights (CB fitted with releases, RH terminals and CTs, accessories excluded)

Fixed 3 poles [Kg/Ibs] 42/93 46/101 68/150 95/209 140/309

Withdrawable 3 poles [Kg/Ibs] 65/143 72/159 100/220 147/324 210/463

E1 E2 E3 E4 E6

Specifications common to the entire rangeVoltages

Rated maximum voltage 635 [V]

Rated voltage 600 [V]

Test voltage (1 min 50/60 Hz) 2,2 [kV]

Frequency 50-60 [Hz]

Number of poles 3

Versions Fixed - Withdrawable

Rated continuous current [A] 800 1200 1200 1600 1200 1600 2000 2500 3200 3600 4000 5000

Mechanical life

[N o. operations x 1000] 15 15 12 12 10 10 10 10 5 5 5 5

Electrical life

[N o. operations x 1000] 10 10 10 10 10 10 8 8 5 5 5 3

E1 B-A E2 B-A/N-A E3 N-A/S-A/H-A E4 S-A/H-A/V-A E6 H-A/V-A

New range complying with ANSI standardsand UL certified



17

They’ve passed the toughest exams.Here’s the proof

SACE Emax circuit-breakers and their

accessories comply with the international

Standards IEC 947, EN 60947 (harmonised in

17 countries by CENELEC) , C EI EN 60947 and

IEC 1000, together wi th the followi ng

European directives:

• “Low Voltage D irectives” ( LVD ) No. 73/23/

CEE ( and subsequent variants) ;

• “Electromagnetic Compatibili ty D irective”

( EM C) No. 89/336/CEE.

The switchgear complies wi th the

requirements set out in the regulations for

installations on ships and has been approved

by the followi ng Naval Registers:

• RINA ( Registro Italiano Navale)

• D et Norske Veritas

• Bureau Veritas

• G ermanischer Lloyd

• Lloyd’s Register of Shipping

• Polsk j Reiestr Statkow

T his certification of conformity with the

product Standards mentioned is carried out, in

compliance wi th European Standard EN 45011,

by the Italian certification body AC AE ( Asso-

ciazione per la Certificazione delle Apparec-

chiature Elettriche) recognised by the

European body LO VAG ( Low Voltage

Agreement G roup) .

T he ABB SACE L.V . Q uality System compli es

with the ISO 9001 international Standard( model for quality assurance in design,

development, manufacture, installation and

service) and the equivalent European Standard

EN ISO 9001 and its I talian version UNI EN

ISO 9001.

T he third-party certifying body is RI NA-

Q UACER. ABB SACE obtained its first three-

year certification in 1990 and is now on its

third certification.

T he Frosinone factory has achieved ISO 14001

environmental certification.



18

SACE Emax presents all the benefits of the linePoint by point

Easyinstallation

The number of mountingpoints required has beenreduced compared to theprevi ous series and theyhave all been placed on thebase of the circuit-breakerto make it easier to installthe circuit-breakers inswitchboards.The availabili ty of a widerange of terminals makes itpossible to build wall-mounted switchboards orswitchboards that can beaccessed from the rear withrear connections.The circuit-breakers areavailable with di fferentcombinations of top andbottom terminals to meetspecial requirements.

Easycustomisation

Accessory installationoperations have beenoptimised and simplifiedthanks to a range of specialconstruction features. Allthe electrical accessories arefitted from the front. Thismakes it simpler to fit theaccessories and means thattheir installation can beplanned in the lastinstallation phase. What’smore, the simplicity andsafety of the operationsmeans that the endcustomer can also carry outany customisation thatmight become necessaryduring the life of theinstallation. To this end, thecurrent transformers for thedifferent rated currents arealso extremely easy tochange.

Optimal answers to

problems of design,

operation and

management.

The protection releases

feature sophisticated

protection functions and

wide adjustment ranges.

Particularly compact

dimensions.

The same height and

depth for the entire

series.

The same accessories

for the entire range both

for DC and AC.

Operator safety is

ensured by a multitude

of diff erent features,

including:• double insulation

between accessories

and power circuit;

• key locks and padlock

devices on operating

mechanisms;

• racking out with door

closed on

withdrawable circuit-

breakers;

• anti-insertion locks for

preventing the insertion

of moving parts in fixed

parts with differentrated currents.

Accessories that don’t

need wiring.

T he entire series of SACEEmax air circuit-breakers isnot only characterised byhaving constantdimensions but the sameheight and depth as well.T his facili tates the designphases, making for easierfabrication withstandardised supportingframes. T he sheet steelstructure of the circuit-breaker is extremelycompact and enablessignif icant space savings. Asingle front flange for theentire series simplifies theconstruction of switchboard doors,enabling a single type of drilling to be used.

Modular strengthsand compactdimensions

18



19

Optimalwarehousemanagement

Stock management in thewarehouses of electricalmaterial distributors andcustomers who need tomanage the maintenanceand spare parts of largeinstallations is made muchsimpler and rationalised bythe adoption of highly-effective solutions,including:• a single line of

accessories for the entireseries

• an opening and closingrelease that can be usedas a single accessory.The function isdetermined exclusivelyby the mounting position

• duty releases that can bepowered in DC or ACwithout any modification

• single fixed part for eachcircuit-breaker model(even if they havedifferent rated currentsand different breakingcapacities)

• interchangeability of SACE PR111 and PR112overcurrent releases

• conversion kit fordifferent terminal andversion solutions.

Efficient andsafe installations

SACE Emax circuit-breakersprovide a high level of safety for those operatingon the installation:• a series of locks ( key

locks or padlockdevices) ensurecomplete safety againstany incorrect operations

• the accessories areinstalled from the frontand operator safety isensured by the doubleinsulation thatguarantees totalsegregation of theaccessory seatings fromthe power circuit

• circuit-breakers can alsobe racked out with thecompartment doorclosed

• option of mechanicalinterlock ing across twoor three circuit-breakers,irrespective of theirmodel or version ( fixedor wi thdrawable) usingflexible cables. Thecircuit-breakers can beinstalled vertically orhorizontally.

• different protectiongrades available,including IP54,

implemented using atransparent tamper-proof guard for fitting on thefront of the switchboard

Easy and safemaintenance

Just a few simpleoperations allow fullinspection of the arcingchamber and powercontacts wi th the circuit-breaker out of service;( withdrawable versions caneven be racked out withthe door closed) .Isolation of the accessorycompartment from thepower circuit prevents anypossibility of accidentalcontact with live parts.

The intelligence of thenew-design SACE PR111and PR112 microprocessor-based overcurrent releasesenables: very highoperating precision, a wideadjustment range,protection against all typesof faults and monitoring of the main electricalparameters, operationwithout the need for anauxiliary power supply,sensiti vity to the true root-mean-square value of thecurrent, and the option of dialogue with computerisedsupervision and controlsystems such as the SACESD-View 810.

Intelligentprotection

19



ABB SACE L.V. SPA

Head O ffice: V ia Baioni, 35

24123 Bergamo - ItalyTel.: +39 035 395111

Telex: 301627 ABBS AC I

Telefax: + 39 035 395306/+39 035 395433

ht tp : / /www.abb. i t /sace- lv

I T S L V

6 0 4 0 6 0 / 0 1 1

e n

Emax Brochure

Documents

Transcript of Emax Brochure