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Loadline Z-Frame Air Circuit Breakers

Loadline Z-Frame Air Circuit Breakers

The Dorman Smith Z Frame ACB range offers current ratings from 800A - 4000A in 3frame sizes. Up to 3200A accommodated within the same height and depth. Allutilize a double break contact system ensuring a fast interruption time of short circuitcurrents and a high making capacity offering greater operator safety. With more than20 design patents registered on the Z frame ACB, this range encompasses moderntechnology to control and protect your system.

Z frame is a comprehensive range of ACB's with associated accessories ideallysuited for any application where high fault level currents may be present. Thecompact design and innovative features present Z frame as one of the smallest andmost advanced ranges of ACB available.

Features3 compact frame sizes

Small depth size 290mm

Identical height and depth up to 3200A

True RMS protection

High making capacity

BenefitsHigh stacking density in switchboards

Identical cut outs for panel mounting

Reduced switchboard size

Maximum operator safety

ApplicationsL.V. Transformer protection

L.V. Power distribution

L.V. Circuit protection

ApprovalsIEC 60947-2

EN 60947-2

AS 3947-2

NEMA PUB No.SG3

ANSI C37.13

Contents Page No.

Loadline Z-Frame

International Compliance 1-2

Loadline Z-Frame - Over Current Release

Loadline Z-Frame Characteristics 3

OCR Characteristics 4

AGR11L - OCR Protective Functions 5



Loadline Z-Frame Catalogue Number Selection

Air Circuit Breaker Selection 8-9

Loadline Z-Frame Accessories

Accessories Factory Fitted 10-12

Accessories Factory Fitted Order Codes 13

Accessories Supplied Loose 14-17

Loadline Z-Frame Dimensions

Z2 Draw-out Type 18

Z2 Fixed Type 19

Z3 Draw-out Type 20

Z3 Fixed Type 21

Z4 Draw-out Type 22

Loadline Z-Frame Circuit Diagrams

AGR - 11L OCR fitted or without OCR 23

AGR - 21L or 22L OCR fitted 24

Loadline Z-Frame International Compliance

1

1) Values in open air at 40˚c2) Values of 800A ~ 1600A for draw-out type with horizontal terminals Values of 2000A ~ 4000A for draw-out type with vertical

terminals3) For 2 poles use both opposite ends poles of 3 poles ACB’s4) 4 poles ACB’s without Neutral phase protection can not be applied to IT earthing systems.5) Rated insulation voltage depends on applied standard: 1000V AC according to IEC 60947-26) Rated operational voltage depends on applied standard: 690V according to IEC 60947-27) Cannot apply IT earthing system, ie, insulated from earth.8) For 500V AC.9) Please contact Dorman Smith for DC application.10) 3 poles in series should be applied for 600V DC.11) For vertical terminals or horizontal terminals

Frame Z2 Z3 Z4

abcdabcd

Fixed Type

Draw-outType (11)

Rated Current (max) [In] (A) IEC, EN AS 800 1250 1600 2000 2500 3200 4000(1) (2) NEMA, ANSI 800 1250 1540 2000 2500 3200 3700

Neutral Pole Amperes Frame (A) 800 1250 1600 2000 2500 3200 4000Number of Poles (3) (4) 3 - 4 3 - 4 3 - 4 3 - 4 3 - 4 3 - 4 3 - 4

AC Rated Insulated Voltage [Ui](V.50/60Hz) (5) 1000 1000 1000 1000 1000 1000 1000Rated Operational Voltage [Ue](V.50/60Hz) (6) 690 690 690 690 690 690 690(AC Rated Breaking Cap [kA sym rms)/MAKING CAP [kA peak]IEC, EN, AS AC 690V (7) 50/105 50/105 50/105 50/105 65/143 65/143 75/165[/cs = /cu] 440V 65/143 (8) 65/143 (8) 65/143 (8) 65/143 (8) 85/187 (8) 85/187 (8) 100/220 (8)NEMA AC 600V 42/96.6 42/96.6 42.96.6 42/96.6 50/115 50/115 65/149.5 ANSI 480V 50/115 50/115 50/115 50/115 65/149.5 65/149.5 75/172.5

240V 65/149.5 65/149.5 65/149.5 65/149.5 85/195.5 85/195.5 100/230(9) DC 600V (10) 40/40 40/40 40/40 40/40 40/40 40/40 40/40

250V 40/40 40/40 40/40 40/40 40/40 40/40 40/40

Non Automatic Unit

Rated Impulse Withstand Voltage [Uimp] (kV) 12 12 12 12 12 12 12Rated Short Time Withstand 1s 65 65 65 65 85 85 100Current[/cw][kA rms] 3s 50 50 50 50 65 65 75Latching Current (kA) 65 65 65 65 85 85 100Total Breaking Time (s) 0.03 0.03 0.03 0.03 0.03 0.03 0.03Closing Operation Time

Spring Charging Time (s) max. 10 10 10 10 10 10 10Close Time (s) max. 0.08 0.08 0.08 0.08 0.08 0.08 0.08Weight (kg) draw-out type 73 - 86 73 - 86 76 - 90 79 - 94 105 - 125 105 - 125 139 - 176Outlined Dimensions (mm)

360 - 445 360 - 445 360 - 445 360 - 445 466 - 586 466 - 586 - - 460 460 460 460 460 460 - -290 290 290 290 290 290 - -75 75 75 75 75 75 - -

354 - 439 354 - 439 354 - 439 354 - 439 460 - 580 460 - 580 631 - 801460 460 460 460 460 460 460345 345 345 345 345 345 34540 40 40 40 40 40 53

800KA & 100KA Icu available end of 2003. Contact Dorman Smith for availability.

Loadline Z-Frame International Compliance

2

Circuit Withstand Voltage (at 50/60Hz) Rated Impulse

Withstand Voltage U imp

Main Circuit

Con

trol

Cir

cuits

Connecting Bar Sizes (mm)

Based Standards Ambient temp (˚C) 2x50x5 2x80x5 2x100x5 3x100x5 2x100x10 3x100x10 4x150x6

IEC60947-2 40 (Standard) 800 1250 1600 2000 2500 3200 4000EN60947-2 45 800 1250 1600 2000 2500 3200 4000AN3947.2 50 800 1250 1600 2000 2500 3200 4000

55 800 1250 1600 1820 2500 2990 400060 800 1250 1460 1740 2400 2850 3760

NEMA, SG-3 40 (Standard) 800 1250 1540 2000 2500 3200 3700ANSI C37.13 45 800 1240 1470 1960 2500 3010 3580

50 800 1180 1390 1860 2440 2860 347055 800 1110 1310 1750 2300 2690 335060 800 1040 1230 1640 2150 2520 3150

Note: The values of 800A, 1250A & 1600A are for horizontal terminals on both line and load side.The values of 2000A, 2500A, 3200A & 4000A are for vertical terminals on both line and load side.Above figures are subject to the design of the enclosure and rating of busbar.

Dielectric Strength

Derating

Between terminals AC3500V for 1 minuteterminal group to earthTerminal group to earth AC2500V for 1 minuteTerminal group to earth AC2000V for 1 minuteTerminal group to earth AC2000V for 1 minuteTerminal group to earth AC2000V for 1 minuteTerminal group to earth AC2500V for 1 minuteTerminal group to earth AC2000V for 1 minuteOther Accessories

Note: The values shown above are those measured on phase connections and cannot be applied to control terminals on the ACB.

Auxiliary switches For general serviceFor microload

Position switchesOver-current release (OCR) Power supply for undervoltage

12kV

6kV4kV4kV4kV6kV4kV

Frame

Rated current (A) 800 1250 1600 2000 2500 3200 4000DC internal resistance per pole (mΩ) 0.030 0.030 0.028 0.024 0.014 0.014 0.014AC power consumption for 3 poles (W) 170 310 350 490 600 780 1060

Z4

Internal Resistance and Power Consumption

Z3Z2

Loadline Z-Frame Characteristics

3

100 200 300 500 1000 2000 ; 6 graduations75 175 275 475 975 1975

170 270 370 570 1070 2070

Time-delay [time] (s) 0 - 0.1 - 0.2 - 0.3 - 0.4 - 0.5 - 0.6 - 0.7 - 0.8 - 1.0 ; 10 graduations

Power consumption: 5VA

AC100 - 120V DC100 - 125V DC24VAC200 - 240V DC200 - 250V DC48V

Pick-up voltage (V)

External Supply voltageNote. Regd for AGR11L - AL, AGR11L - GL

[ICT]x(0.1 - 0.2 - 0.3 - 0.4 - 0.6 - 0.8 - 1.0 - NON) ; 8 graduations

UVT rated supply voltage [Uc]x(0.8 - 0.85 - 0.9 - 0.95) ;4 graduations

Current setting tolerance (%)

Time-delay [tp1] (s Resettable time (ms)

Max. total clearing time (ms)

+20%

OCR Control Voltage

GF

UVT

Common) Common) Common)

PTA Adjustable Pre-trip Alarm Characteristics

Adjustable Long Time-delay Trip Characteristics

Type AGR-11L, 21L, 22L

Protection Functions Setting Range

LT

ST

Pick-up current [ IR ] (A)

Pick-up current [Ii] (A)

Pick-up current [Isd] (A)

Time-delay [tR] (s)

Time-delay [tsd] (ms) Relay time

Resettable time (ms)

Max. total clearing time (ms)


Time -delay setting tolerance (0%)

[In]x(0.8 - 0.85 - 0.9 - 0.95 - 1.0 - NON) ; 6 graduations• Non tripping when load current < ([IR]x1.05). • Tripping when ([IR]x1.05)< load current < ([IR]x1.2)

[In]x(1 - 1.5 - 2 - 2.5 - 3 - 4 - 6 - 8 - 10 NON) ; 10 graduations

+15%

50 100 200 400 600 800 ; 6 graduations

25 75 175 375 575 775

120 170 270 470 670 870

(0.5 - 1.25 - 2.5 - 5 - 10 - 15 - 20 - 25 - 30) at 600% of [ IR]; 9 graduations

+15% + 150ms - 0ms

Adjustable Short Time-delay Trip Characteristics

Tripping at 600% of [In] with LT time-delay [tR]

INSTMCR

Adjustable Instantaneous Trip Characteristics

[In]x(2 - 4 - 6 - 8 - 10 - 12 - 14 - 16 - NON) ; 9 graduations

Time-delay [tp1] (s) (5 - 10 - 15 - 20 - 40 - 60 - 80 - 120 - 160 - 200) at [IP1 or more ;10 graduations

Time-delay setting tolerance (%) +15% + 100ms - 0ms

Current setting tolerance (%) +20%

Pick-up current [Ip1] (A) [In]x(0.75 - 0.8 - 0.85 - 0.9 - 0.95 - 1.0) ; 6 graduations

Pick-up current [Ig] (A)

Current setting tolerance (%) +7.5%


Time-delay [tp1] (s)

+15% +150ms - 0ms

N-phase Protection CharacteristicsNP

[ICT]x(0.4 - 0.5 - 0.63 - 0.8 - 1.0); Factory set to a user-specified value• Non tripping when load current < ([IR]x1.05). • Tripping when ([IR]x1.05)< load current < ([IR]x1.2)

Key _ : Default Setting

Undervoltage Trip Characteristics (AGR -21,22 only)

Adjustable Ground Fault Trip Characteristics Note; Set [Ig] to 1200A or less

Pick-up current [Ig] (A)

Loadline Z-Frame OCR Characteristics

4

LT - Overload ProtectionAdjustable from 40 - 100% of rated current incorporating true r.m.s. detection.Microprocessor controlled devices eliminate “nuisance” tripping by responding tothe true r.m.s. value of the waveform. Neutral protection for all Triple-N harmonics,such as 3rd, 9th and 15th, and also a “thermal memory” as standard.

ST - Short TimeAdjustable in current and time the current can be set so discrimination is achievedwith the down stream device. There is also a ramp selector switch to reduce theangle of the curve from a right angle to a 45° angle allowing better discrimination.The time setting enhances this by allowing the down stream device time to clear thefault before the ACB trips.

INST - Instantaneous TripAdjustable from 2 X In upto 16 X In or none. This setting protects from short circuitcurrents on the system, detects and executes the tripping in a short time less than0.02 seconds.

NP - N-phase Protection Function (Optional)In a 3-phase, 4-wire system with some harmonic distortion, the 3rd harmonic maycause a large current flow through the neutral conductor. The N-phase protectionfunction prevents the neutral conductor from sustaining damage or burnout due to alarge N-phase 3rd harmonic current.

GF - Ground Fault ProtectionRestricted and unrestricted ground fault protection is available on the same relay asa special specification. There is no need to use a separate relay with Loadline Z-frame ACB, thus saving panel space and cost. Furthermore, fewer CT’s and busbarconnections are required which reduces heat and power consumption.

NB. Neutral CT supplied, loose with all 3 pole ACB’s.

UVT - Integral Under Volt Trip Function (Adjustable)With adjustable voltage pick up and adjustable time delay. This provides fine tuningof voltage trip levels. (AGR-21, 22 only).

LT Characteristic

ST Characteristic

INST Characteristic


5

AGR11L - Protective FunctionsThis unit provides an adjustable time delay on overload (L) and also the I2t rampcharacteristics (S) As shown, these are essential to provide selectivity when gradingwith other protective devices such as downstream fuses and upstream relays. The standard ‘LSI’ curve provides more than five million combinations of uniquetime current characteristics. Zone selective interlocking is available to provide zerotime delay selectivity.

LT - Adjustable LongTime-delay TripFunctionRMS sensing is used toaccurately read throughdistorted waveforms.

• HOT start mode HOT or COLD start mode is user-selectable. In HOT start mode, the OCR operates faster than in COLD start mode in response to an overload. The HOT start mode gives protection, taking account of the behaviour of loads under heat stress.

Characteristics shown are withRamp (I2t Sw) in off position.

Settings Shown

LT 100%ST 400%INST 1000%

1

1

2

2

3

3

4

5

4 5

Optional

q - When the OCR is set to start operation at 50% of the rated current, its operating time in HOT start mode is approx. 80% of that in COLD start mode.w - When the OCR is set to start operation at 75% of the rated current, its operating time in HOT start mode is approx. 60% of that in COLD start mode.e - When the OCR is set to start operation at 100% of the rated current, its operating time in HOT start mode is approx. 20% of that in COLD start mode.

Op

era

tin

g t

ime

HOT start mode

COLD start curve

HOT startcurves

Current

q

we

Ramp

Characteristic Curve

(“L” characteristic)

Op

era

tin

g t

ime

Current

2.5

/sd

tsd0.1

200% 1000%

ST - Adjustable Short Time-delay Trip FunctionThe ST delay trip function has a ”definite time delay characteristic” and a ”rampcharacteristic”. These characteristics are switch-selectable. The ramp characteristicprovides close selectivity with down stream circuit breakers or fuses. The AGR21Lcomes in to operation with the definite time characteristic when the load currentreaches 1000% or more of the rated current [In]. The ST trip function is factory set tothe definite time characteristic.

INST/MCR - Adjustable Instantaneous Trip FunctionThe INST trip function trips the ACB when the short circuit current exceeds thepickup current setting, irrespective of the state of the ACB. The making currentrelease (MCR) trips the ACB when the short circuit current exceeds the pickupcurrent setting during closing operation. After the ACB is closed, the MCR is lockedand kept inoperative. The INST and MCR are switch-selectable.

(Note) The MCR needs the control power. If the control power is lost, the MCRprovides the INST trip function only.

As Described on page 6. Available for AGR11L

6

PTA - Adjustable Pre-trip Alarm FunctionThe pre-trip alarm function provides an alarm signal via the alarm contact (1A-contact) when the load current exceeding a predetermined value lasts for a predetermined time. The pre-trip alarm is automatically reset when the load current drops to the predetermined value. Note that this function needs the control power.

UVT - Adjustable Integral Undervoltage Trip Function (For AGR21 and AGR22 only)

The application rated voltages are AC100 - 120V, AC200 - 240V, and AC380 - 460VThe UVT function trips the ACB when the UVT control voltage drops to a value equalto 65% of the rated value. Operating time can be set in ten levels: “instantaneous”through to 1 second. The ACB can be closed 2 seconds after the UVT control voltagehas returned to the pick-up voltage. Phase failure protection is available byconnecting R,S and T-phase (See page 24). The UVT function comes with LED andcontact output operation indications. The UVT function trips the ACB when anysingle phase is lost.

NP - N-phase Protection Function (optional) This NP function is available on 4-pole ACBs and prevents the neutral conductorfrom suffering damage or burnout due to overcurrent. The NP trip pickup currentcan be set between 40% and 100% of the OCR rated primary current. It is factory setto 0.4 IcT or a value specified at the time of ordering.*The NP trip function comes usually with operation indications (LED and contactoutput). The NP trip pickup current setting is shared by the LT trip function.The HOT start mode is available. The operating time for the NP trip function is linkedto that for the LT trip function.

As AGR11L

1

1 2 3

2

3

4

4

5

5

6

6

GF - Ground FaultTrip FunctionThe peak value sensing is used(the residual current of eachphase is detected). The GFpickup current can be setbetween 10% and 100% of theCT rated primary current [ICT].[Ramp characteristic is added]The ramp and definite timecharacteristics are switch selectable. The GF trip function comes in operation with thedefinite time characteristicswhen the load current reaches100% or more of the CT ratedprimary current [ICT]. The GF trip function is factory set tothe definite time characteristics.When using a 3-pole ACB in a3-phase, 4-wire system, be sureto use the supplied CT forneutral lineNote 1: The G trip functioncomes usually with operationindications (LED and contactoutput). Ground fault indicationwithout a ground fault trippingoperation, is available.*

AGR21L - Protective Functions


7

As AGR21L with LCD Display & Communications

Data Measuring and Output FunctionIn some cases it may not be cost effective to upgrade to a digital network so thetraditional analogue 4mA - 20mA signal is supported. The function measures phasecurrents, line voltages (or phase voltages), electric power, and electric energy.

Monitoring Various Data on L.C.D. DisplayType AGR-22 OCR can monitor phase currents, line voltages (or phase voltages),power, energy, power factor, frequency, etc. on the L.C.D. display.

Communication Function (optional)This function supports the LonTalk protocol and enables transmission of variousdata via LonWorks ® networks.

Energy Measurement

A,V, kW, MWh, kvar, cosø, frequency

Intelligent Fault Analysis

Status, fault type, fault size, tripping time, fault history

Maintenance Information

Trip circuit supervision, protection relay supervision, contact wear indication,contact temperature measurement. The communication system uses LonWorks®

network of Echelon Corporation, however other protocols can be supported.


AGR22L - Protective Functions


8

How To Select The Loadline Z-Frame Air Circuit Breaker

Items Supplied as

Standard on all ACBs

1) IP31 Door Flange2) 4 No AB Auxiliary

Switches3) Mechanical indication of

spring status4) Mechanical open and

close buttons and indicators

5) Open and close button padlock facility

6) Test report for ACB & OCR (when fitted)

7) Operation manual

Items Supplied with

Draw out ACB

1) Draw out handle2) Draw out portion

indication3) Draw out portion

position padlock facility

4) Fixed portion main safety shuttles padlockable

5) Fixed portion control circuits socket shutters

Factory Fitted Accessories

1) Castell/cylinder lock/padlock facility

2) Shunt trip3) UVR fixed type (for OCR type

11L or Non Auto)4) Aux switches5) Position switches (drawout

only)6) Mechanical Interlocks7) Spring charged indicator switch8) Auto spring discharge device

(draw out only)9) Remotely tripped indicator

contact (for information of tripping by external means)

Note 1

Trip Indicator contacts only

Note 2

Long time trip contactShort/INST trip contactPretrip alarm contact groundfault trip contact systemalarm contact (selfdiagnostic)

Note 3

As Note 2 plus UVT tripcontact Spring chargeindicator contact


9

Technical KeyChosen Product Code

ResultingCode

Z2

Z2D

Z2D3

Z2D3J

Z2D3J16

Z2D3J16H

Z2D3J16H0

Z2D3J16H0A

Z2D3J16H0AD

Z2D3J16H0ADA

Frame Size

D = Drawout

F = Fixed

3 = 3 Poles

4 = 4 Poles

Breaking Capacity

J = 60 - 65kAK = 80 - 85kAL = 100kA

08 = 800A 20 = 2000A12 = 1250A 25 = 2500A16 = 1600A 32 = 3200A40 = 4000A

Terminal Type

H - Horizontal, V = Vertical, F = Front For Combinations contact Dorman Smith Switchgear

OCR Type

A = 11L, B = 21L, C = 22L, D = NO OCR

OCR Control Voltage

A = 100 - 120Vac & 200 - 240Vac, B = 100 - 125vDC & 200 - 250Vdc,C = 24Vdc & 48Vdc

OCR Functions

Order Type LT ST INST/ PTA GF UVT NPCode MCR

A AL

B GL

C PS

D PG

E PGU

F AL + NP

G GL + NP

H PS + NP

J PG + NP

K PGU + NP

Charging Type

See Table

Order OCR TypeCode 11L - Non Auto 21L - 22L

0 Manual Manual1 240v ac 200-240v ac2 220v ac NA3 200v ac NA4 120v ac 100-120v ac5 110v ac NA6 100v ac NA7 24v dc 24v dc8 48v dc 48v dc9 100v dc NA10 110v dc NA11 125v dc 100-125v dc12 200v dc NA13 220v dc NA14 NA 200-250v dc

10) Control circuits terminal cover11) IP55 cover12) OCR checker13) Motor Step-Down Transformer

(220Vac motor to be specified)14) Capacitor Trip Device

(48Vdc shunt trip to be specified)15) Mechanical Interlock Cables

Loosegear Accessories

1) Shutter padlocking device (pair)2) Fixing bolts (drawout only)3) Mal insertion device (drawout only)4) Test jumper cable 5 meters5) ACB Lifter6) Spare drawout handle7) Terminal Barrier8) Cycle counter9) Lifting plates

Current

Rating

10

Loadline Z-Frame Accessories - Factory Fitted

Locking DeviceCastell Lock

Key released when ACB locked in off position.

Cylinder Lock

Key released when ACB locked in off position.

Padlockable Devices

Padlock fitted with ACB in off position

Keylock

Order

Code

Order

Code

Rated

Voltage (V)

Operational

Voltage (V)

Peak

Excitation

Current (A)

Steady-state

Current (A)

Open Time

(max.)

(ms)

Description

0123489

Not FittedCastell Ref DS1 FittedCastell Ref DS2 FittedCastell Ref DS3 Fitted

Castell Provision only for FS2 type (with angular movement 90º clockwise to trap key)Cylinder Lock

Padlockable Device

Continuously-rated Shunt Trip DeviceThe continuous-rated shunt trip device allows the ACB to be opened when anexternal protection relay against overcurrent or reverse power is activated. Becauseof its continuous rating, the device can be used to provide an electrical interlock tothe ACB. When an AGR-11L OCR is fitted or no OCR is fitted, continuously ratedshunt trip and fixed type undervoltage trip can not be fitted to the same ACB.

Note: For Time Delay Shunt Trip contact Dorman Smith for details

0 Not Fitted1 AC240 AC168-264 0.18 0.12 402 AC220 AC154-242 0.19 0.13 403 AC200 AC140-220 0.24 0.16 404 AC120 AC84-132 0.37 0.24 405 AC110 AC77-121 0.39 0.26 406 AC100 AC70-110 0.48 0.32 407 DC24 DC16.8-26.4 1.65 1.1 408 DC48 DC33.6-52.8 0.86 0.57 40

Undervoltage Trip For AGR-11L or Without OCRThe undervoltage trip (UVT) automatically trips the ACB when the control powervoltage drops below a pre-determined value. When the control voltage is restored toa value equal to or greater than the pick-up value, the ACB can be closed.The UVT consists of a tripping mechanism fitted internally to the ACB and a tripcontrol unit supplied with a 2 metre lead for mounting external to the ACB.The UVT is an instantaneous Trip Type. A Timed Delay version is available. Contact Dorman Smith Switchgear for details.

Remote opening of the circuit breaker by the UVT is possible by connection of a

normally open push button across terminals 24 and 30 .

Note: Shunt Trip and UVT cannot be fitted on same ACB

Order Rated Control Opening Pick-up Coil Excitation Power Consumption

Code Voltage (V) Voltage (V) Voltage (V) Current (A) Normal Reset

0 Not Fitted1 AC240 84-168 204 0.3 30 502 AC220 77-154 187 0.3 30 503 AC 200 70-140 170 0.3 30 504 AC 120 42-84 102 0.3 30 505 AC 110 38.5-77 93.5 0.3 30 506 AC 100 35-70 85 0.3 30 507 AC 440 154-308 374 0.3 30 508 AC 415 145-290 352 0.3 30 509 AC 380 133-266 323 0.3 30 50

232mm

140mm

81mm

UVT Control Unit


11

Auxiliary SwitchesAll auxiliary switches are change over single gap contacts rated at 5A for generaluse. Microload type for electronic circuits are available as an option.

The auxiliary switches in a fixed type ACB operate during the breakers ON/OFFoperation. The draw out type have the Auxiliary contacts operating in theCONNECTED and TEST positions.

Auxiliary Switch

0 = Supplied as standard 4 - 41 7 - 72 10 - 103 4 3* 74 7 3* 10

Category For General Service Microload

Voltage Resistive Inductive AC: cos ø > 0.3 Resistive Inductive AC: cos ø > 0.6 min. applicable

load (A) load (A) DC: L/R < 0.01 load (A) load (A) DC: L/R < 0.007 load

AC100-250V 5 5 0.1 0.1AC251-500V 5 5 - -DC30V1 1 0.1 0.1DC125-250V 1 1 - -

Order Code Standard Contact

5A

Microload0.1A

Total Contacts

DC5V 1mA

Position SwitchesThe position switches operate to give indication of breaker positions: CONNECTED,TEST, ISOLATED, and INSERT.There are two contact arrangements: 2c and 4c.Connections to the switches are made via screw terminals.The following table lists the available types of switches.

Order

Code Insert Isolated Test ConnType Number of

Contacts

Contact Arrangement

0 Nothing Fitted1 ALR-0101P 2 c 0 1 0 12 ALR1111P 1 1 1 13 ALR-0211P 4c 0 2 1 14 ALR-0112P 0 1 1 25 ALR-0202P 0 2 0 2

Voltage

AC 100-250VDC 250VDC 125VDC 30VDC8V

Resistive Load (A)

110.30.6610

Inductive Load (A)

(COS = 0.6, L/R = 0 07)

60.30.656

Position Switch Operation Sequence

Position Switch Ratings

CONNECTEDposition switch

TESTposition switch

ISOLATEDposition switch

INSERTposition switch

ISOLATED TEST CONNECTED

a- contact ON

a- contact ON

a- contact ON

a- contact ON

Inset position means the breaker is in any position between isolated andconnected

* Suitable for electronic circuits

Trip Indication SwitchThis switch indicates when the breaker has been tripped from a source other thanthe OCR unit.

Order Code

0 = None 1 = Fitted

12


Mechanical Interlock Horizontal TypeThe mechanical interlock uses a cable system to provide a positive interlock betweentwo or three ACBs. In conjunction with an electrical interlock, it will enhance safetyand reliability of power distribution systems.Interlocking is possible between any frame size within the Dorman Smith FrameRange.

Vertical TypeMinimum pitch (550mm) is possible.Contact Dorman Smith for the details of vertical type.

Auto Spring Discharge DeviceThis device allows the charged springs to be automatically released when the ACB isdrawn out from the isolated position to the removed position.Order code: 0 = None 1 = Fitted

Spring Charge Indicator SwitchThe switch can be used to indicate that the closing springs have been fully charged.Order code: 0 = None 1 = FittedWith AGR-11L OCR or without OCR

Mechanical Interlock

Mechanism Type

Type A Configuration

Any one breaker can be closed out of three. Each breaker to be orderedseparately with appropriate mech type.Example:-Breaker reference ‘Mains 1’ requiresmech type.Breaker reference ‘Mains 2’ requiresmech type.Breaker reference ‘Generator’ requiresmech type.

Type B Configuration

Any two breakers can be closed out of three.

Type C Configuration

Any one breaker can be closed out of two.

Order Codes

0 = None1 = Mechanism Type2 = Mechanism Type 4 = Mechanism Type

Cable pairs to be ordered separately

see page 17

Type A

Configuration

Type B

Configuration

Type C

Configuration

AC

DC

60.10.53

Inductive Load

30.10.52

Voltage

(V)

AC

DC

Resistive Load

0.50.270.52

Inductive Load

0.20.040.20.7

250 250125 30

250 250125 30

With AGR-21 or AGR-22 OCR

Voltage

(V)

Switch Contact Ratings (A)

Switch Contact Ratings (A)

Resistive Load

1

1

2

1 1

3 3 3

1 2 1

123

Mains 1 Mains 2 Generator

Loadline Z-Frame Accessories - Factory Fitted Order Codes

13

How to Select Factory Fitted AccessoriesCatalogue No. Example:- Z2D3J16HOADA fitted with :- DS1 Castell Lock, 120Vac shunt trip, 10c Auxiliary Switches, 1111 Position Switches = Z2D3J16HOADA14022

Order Code

Order Code

Order Code

Order Code

Order Code

Position Switches

DS 1CastellFitted

DS 2CastellFitted

DS 3 CastellFitted

CastellProvision

CylinderLock Off

PadlockOff

None Spare

None 240VAC

220VAC

200VAC

120VAC

110VAC

100VAC

24VDC

48VDC

None

None

None 0101 0211 01121111 0202

7c SW's 10c SW's 4c SW's+3c (microload) 7c SW's+3c (microload)

240VAC

220VAC

200VAC

120VAC

110VAC

100VAC

440VAC

380VAC

415VAC

None Fitted

None Fitted

None Fitted

1

0

0

0

MechanicalInterlock

0

None

0

Interlock MechanismType 1

1

0 1

0 1

0 1


2


3

1 2 3 4 5

1 2 3 4

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8

2 3 4 5 6 7

Shunt Trip

Auxiliary SwitchesOrder Code

Spring ChargeIndicating Switch

Auto SpringDischarge Device

Remotely TrippedIndicator Contact

Order Code

Order Code

Locks

Order Code

UVT for OCR 11L& None Auto

Catalogue No. Example:- Z2D3J16HOADA14022

Loadline Z-Frame Accessories - Supplied Loose

14

Shutter Padlocking Device

Fixing Bolts

Mal-Insertion Prevention Device

Test Jumper Cable

Shutter Padlocking DeviceThe main circuit safety shutters automatically conceal the main circuit contacts onthe draw-out cradle when the ACB is drawn out.The top and bottom shutters operate independently and can be separately padlockedin the closed position.Up to three padlocks (with ø6 hasp) can be installed on each side using padlockingunit. (Padlock not supplied)In the closed position, the shutters are locked to the extent that they cannot be easilyunlocked by hand. They can be unlocked and held open if required for the purposeof inspection or maintenance.

Description: Catalogue Number:

Z2 & Z3 Frames Z23DSPDZ4 Frame Z4DSPD

Fixing BoltsThe breaker fixing bolts hold the breaker body securely to the draw-out cradle inposition. Use them if the ACB is subject to strong vibration.

Catalogue Number:

ZDFB

Mal-Insertion Prevention DeviceInterchangeability exists within the Z frame range of ACB’s. Because of this feature,there is a possibility for an ACB of a different specification being placed into thedraw-out cradle. Using the mal-insertion prevention device eliminates such apossibility.This device is capable of distinguishing nine different breaker bodies.

Catalogue Number:

ZDMID

Test Jumper CableThe test jumper is a plug-in type, and allows ON-OFF tests on all the Z frame rangeof ACB’s with the breaker body drawn out from the draw-out cradle.The standard jumper cable is 5m long.

Catalogue Number:

ZDTJC

Spare Drawout HandleCranked handle for withdrawing moving chassis from fixed portion. Stowawayhandle for withdrawing moving chassis can be stored within moving chassis .


Cranked Handle ZDHStowaway Handle ZDHS

Control Circuit Terminal Cover


15

Terminal BarrierAn inter-pole terminal barrier prevents a possible short-circuit due to foreign objectsentering between the poles of the main circuit terminals or between the line andload ends, thus enhancing operational reliability of the ACB.This barrier cannot be applied to ACB’s that are supplied with front connections.

Description: Catalogue Numbers:

Z2 Frame, 3 Pole Z2D3TBZ3 Frame, 3 Pole Z3D3TBZ4 Frame, 3 Pole Z4D3TBZ2 Frame, 4 Pole Z2D4TBZ3 Frame, 4 Pole Z3D4TBZ4 Frame, 4 Pole Z4D4TB

Control Circuit Terminal CoverA control circuit terminal cover protects the terminal blocks for auxiliary switches,position switches, and control circuits from being accidentally touched, thusenhancing safety.

Description: Catalogue Numbers:

Z2 Frame, 3 Pole Z2D3CCTCZ3 Frame, 3 Pole Z3D3CCTCZ4 Frame, 3 Pole Z4D3CCTCZ2 Frame, 4 Pole Z2D4CCTCZ3 Frame, 4 Pole Z3D4CCTCZ4 Frame, 4 Pole Z4D4CCTC

Cycle CounterThe ON-OFF cycle counter is a mechanical 5-digit readout that shows the number ofON-OFF cycles of the ACB.Counter readings serve as a guide for maintenance or inspection.

Catalogue Number:

ZCC

Lifting PlatesLifting plates are detachable tools that can be used to lift a breaker body out of adraw-out cradle.

Catalogue Number:

ZLPLTS

ACB LifterA special lifter is available to allow easy and safe transportation or installation of theACB. A drop prevention mechanism is standard.


Z2 and Z3 Frame Z23DLIFTZ4 Frame Z4DLIFT

Terminal Barrier

Cycle Counter

Lifting Plates


16

IP55 CoverAn IP cover provides an IP55 grade of protection as defined in IEC 60529. Even if thebreaker body is on the ISOLATED position, IP cover can still be fitted on the ACB.

Catalogue Number:

ZIP55

OCR CheckerThe OCR checker allows easy checking of the long time-delay trip, short time-delaytrip, instantaneous trip, and ground fault trip functions and the pre-trip alarmfunction of the OCR in the field.

Ratings and Specification

Power Supply AC100/110V, 50/60Hz or 4 x AA alkaline cellsPower Consumption 3WDimensions 101 (w) x 195 (h) x 44 (d) mmWeight 400g

Catalogue Number:

ZOCRC

Motor Step-Down Transformer The maximum rated control voltage applicable to the operation power supply isAC240V. If higher voltages required, a step-down transformer is needed. Thefollowing step-down transformers are available as options. (22Vac motor to bespecified)

Rated Control Transformer

Voltage Type Capacity Voltage Ratio

AC410-470V TSE-30M 300VA 450/220VAC350-395V TSE-30M 300VA 380/220V


450V/220V ZMT4522A380V/220V ZMT3822A

Capacitor Trip DeviceIn conjunction with the continuously-rated shunt trip device, the capacitor trip devicecan be used to trip the ACB within a limited period of 30 seconds if large voltagedrop occurs due to a ac power failure or short-circuit.When the continuously-rated shunt trip is used with the capacitor trip device, “a”contact of auxiliary switch of ACB should be inserted in series. Otherwise, theinternal resistor may be damaged.

When ordering the capacitor trip device a 48V dc shunt trip is required to be orderedseparately.

Ratings and Specification

Type AQR-1Rated Voltage AC100-120VOperational Voltage Rated Voltage x 70 to 110%Rated Frequency 50/60HzRated Voltage of Shunt Trip Used DC48VPower Consumption 100VA

Catalogue Number:

ZSTCD

IP55 Cover

OCR Checker

Control Circuit

Outline Dimensions


17

Mechanical Interlock CablesUsed in conjunction with Horizontal Interlocking Mechanism.

Pitch X or Y Cable Length Catalogue Numbers:

500 or 600 1120mm (PAIR) ZMECHHC1120700 1220mm (PAIR) ZMECHHC1220800 1320mm (PAIR) ZMECHHC1320900 1420mm (PAIR) ZMECHHC14201000 1520mm (PAIR) ZMECHHC15201100 or 1200 1620mm (PAIR) ZMECHHC1620

1720mm (PAIR) ZMECHHC17201920mm (PAIR) ZMECHHC19202120mm (PAIR) ZMECHHC21202320mm (PAIR) ZMECHHC23202520mm (PAIR) ZMECHHC25202720mm (PAIR) ZMECHHC2720

Length of Cable Z = (Cable length for pitch X) + Ymme.g. If X = 800mm and Y = 600mmCable Z = (1320mm) + 600mm = 1920mm cable length.

Current Transformer for NeutralCatalogue Numbers: Supplied as standard with all 3 pole ACB’s with Ground FaultOCR’sWhen using a 3-pole ACB with the ground fault protection function to protect a3-phase, 4-wire system against ground fault, this current transformer (CT) should befitted to the neutral line of the system. This CT is supplied as standard with all 3 poleACB’s with Ground Fault OCR’s.

Outline dimension of CT for neutral line

Z2 Frame, 800A1250A1600A

Z3 Frame, 2000A2500A3200A

Z4 Frame, 4000A

Type CW80-40LS

Rated 200 1250Primary 400 1600Current (A) 800Rated secondary current is 5A

Type EC160-40LS

Rated 1600 3200Primary 2000 4000Current (A) 2500Rated secondary current is 5A

Mechanical Interlock Cables


18

§1: UVT controller is required when fixed type undervoltage trip is fitted with AGR-11L OCR or without OCR.

§2: Conductors including connecting bolts should be separated min-7mm from Draw-out arm.

• N represents the neutral pole of 4-pole ACBs.

Terminal Size

Type t1 t2 t3 W800A 10 10 15 17.51250A 10 10 15 17.51600A 20 15 25 22.52000A 20 15 25 ----

Z2 Draw-out Type

UVT Controller

UVT Controller


19

UVT controller is required when fixed type undervoltage trip is fitted with AGR-11L OCR or without OCR.

N represents the neutral pole of 4-pole ACBs.

Terminal Size

Type t1 t2 t3 W800A 10 10 15 17.51250A 10 10 15 17.51600A 20 15 25 22.52000A 20 15 25 ----

Z2 Fixed Type


20

UVT controller is required when fixed type undervoltage trip is fitted with AGR-11L OCR or without OCR.Conductors including connecting bolts should be separated min-7mm from Draw-out arm.


Z3 Draw-out Type

UVT Controller


21



Z3 Fixed Type

UVT Controller


22



Z4 Draw-out Type

UVT Controller


23

§1: Do not connect “b” contact of auxiliary switch to ON switch in series, otherwise, pumping may occur.

§2: Use “a” contact of auxiliary switch of ACB.

Symbols for Accessories

01 21 Control power supply AC200 - 240V, DC200 - 250V DC48V 01 11 Control power supply AC100 -120V11 21 Control power supply DC100 - 125V, DC24V 02 22 Operation power supply AC100 - 240V, DC100 - 220V, DC24V, DC48V 12 Operation switch, common 03 ON switch 05 Operation indication terminal, common 15 LT trip indication or single-contact indication 25 ST/INST trip indication 06 PTA indication 16 GF trip indication 26 System Alarm indication 17 Trip indication 27 Spring charge indicator 10 20 Continuously-rated shunt trip 19 Separate CT for neutral line (k) 29 Separate CT for neutral line ( ) 08 18 28 UVT power supply 109 UVT power supply common

Term No. AC100V AC200V AC400V

coil coil coil

08 - 09 100V 200V 380V18 - 09 110V 220V 415V28 - 09 120V 240V 440V

For single-contact indication only 05 and 15

Designation of Terminals for Auxiliary and Position Switches

With AGR-11L OCR or without OCR

CT1 - CT3 : Power CT’sS1 - S3 : Current sensorsM : Charging motorLRC : Latch release coilMHT : Magnetic hold trigger

Isolating terminal connector(for draw-out type)Manual connectorUser wiringRelay or Indicator

1: Common, 2:b-contact, 4:a contact

1: Auxiliary switch2: Position switch (for CONNECTED)3: Position switch (for TESTED)4: Position switch (for ISOLATED)5: Position switch (for INSERT)

1-0: Switch numbersA,B,C: Auxiliary switches for microload

(

* * *CONNECTED positions: 121-124 ON

121-122 OFFTEST positions: 131-134 ON

131-132 OFFISOLATED positions: 141-144 ON

141-142 OFFINSERT position: 151-154 ON

151-152 OFF

24

01 21 Control power supply AC200 - 240V, DC200 - 250V DC48V 01 11 Control power supply AC100 -120V11 21 Control power supply DC100 - 125V, DC24V 02 22 Operation power supply AC100 - 240V, DC100 - 250V, DC24V, DC48V 12 Operation switch, common 03 ON switch §1 13 OFF switch §123 Reset switch §1 13 Operation switch for signal separation §214 Operation switch for signal separation §205 Operation indication terminal, common 15 LT trip indication or single-contact indication 25 ST/INST trip indication 06 PTA indication 16 GF, trip indication 26 System Alarm indication 07 Heat indication 17 UVT indication §3 27 Spring charge indicator08 18 28 UVT power supply R.S.T. (Max. AC460V) 09 N-phase voltage detection 19 Separate CT for neutral line (k) 29 Separate CT for neutral line (e) 10 20 Continuously-rated shunt trip30 __

08 18 28

R-Phase S-Phase

Designation of Terminals for Auxiliary and Position Switches

1: Common, 2:b-contact, 4:a contact

1: Auxiliary switch2: Position switch (for CONNECTED)3: Position switch (for TESTED)4: Position switch (for ISOLATED)5: Position switch (for INSERT)

1-0: Switch numbersA,B,C: Auxiliary switches for microload

§1: Operate input signal is rated at 40V 5mA.

§2: Used for separation of operation input signals.

§3: Can be used for trip indicator in place of UVT indication.

§4: For AGR-22L OCR connect the measured power source to the terminals, 08 ,18 , 28.In case of no reverse power trip function with AGR-21L OCR, UVT can be used with single phase power supply as right.

Symbols for Accessories

CT1 - CT3 : Power CT’sS1 - S3 : Current sensorsM : Charging motorLRC : Latch release coilTC : Tripping coil

Isolating terminal connector(for draw-out type)Manual connectorUser wiringRelay or Indicator

(

* * *CONNECTED positions: 121-124 ON

121-122 OFFTEST positions: 131-134 ON

131-132 OFFISOLATED positions: 141-144 ON

141-142 OFFINSERT position: 151-154 ON

151-152 OFF


With AGR-21L, 22L OCR

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Tyco Electronics UK, Dorman Smith SwitchgearBlackpool Road, Preston, PR2 2DQ, UKPhone: +44(0) 1772-325400, Fax: +44(0) 1772-726276

Energy Division – a pioneer in the development of economical solutions forthe electrical power industry. Our product range includes: Cable accessories, connectors & fittings, electrical equipment, instruments, lighting, insulators &insulation enhancement and surge arresters.

For more information and your country contact person, please visit us at: http://energy.tycoelectronics.com

All of the above information, including drawings, illustrations and graphic designs, reflects our present understanding and is to the best of our knowledge and belief correct and reliable.Users, however, should independently evaluate the suitability of each product for the desired application. Under no circumstances does this constitute an assurance of any particularquality or performance. Such an assurance is only provided in the context of our product specifications or explicit contractual arrangements. Our liability for these products is set forthin our standard terms and conditions of sale. ALR, AMP, AXICOM, B&H, BOWTHORPE EMP, CROMPTON INSTRUMENTS, DORMAN SMITH, DULMISON, GURO, HELLSTERN, LA PRAIRIE, MORLYNN, RAYCHEM, and SIMEL are trademarks.

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