Loadline Z-Frame Air Circuit Breakers

1 DivisionLoadline Z-Frame Air Circuit BreakersLoadline Z-Frame Air Circuit BreakersThe 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 compact frame sizesSmall depth size 290mmIdentical height and depth up to 3200 ATrue RMS protectionHigh making capacityBenefitsHigh stacking density in switchboardsIdentical cut outs for panel mountingReduced switchboard sizeMaximum operator Transformer Power Circuit protectionApprovalsIEC 60947-2EN 60947-2AS 3947-2 NEMA PUB Z-FrameInternational Compliance1-2 Loadline Z-Frame - Over Current ReleaseLoadline Z-Frame Characteristics3 OCR Characteristics4 AGR11L - OCR Protective Functions5 AGR21L - OCR Protective Functions6 AGR22L - OCR Protective Functions7 Loadline Z-Frame Catalogue Number SelectionAir Circuit breaker Selection8-9 Loadline Z-Frame AccessoriesAccessories Factory

2 Fitted10-12 Accessories Factory Fitted Order Codes13 Accessories Supplied Loose14-17 Loadline Z-Frame DimensionsZ2 Draw-out Type18Z2 Fixed Type 19Z3 Draw-out Type20Z3 Fixed Type 21Z4 Draw-out Type22 Loadline Z-Frame Circuit DiagramsAGR - 11L OCR fitted or without OCR23 AGR - 21L or 22L OCR fitted24 Loadline Z-Frame International Compliance11) 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 ) 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 ) For 500V ) Please contact Dorman Smith for DC ) 3 poles in series should be applied for 600V ) For vertical terminals or horizontal terminalsFrameZ2Z3 Z4abcdabcdFixed TypeDraw-outType (11)Rated Current (max) [In] (A) IEC, EN AS800125016002000250032004000(1) (2) NEMA, ANSI800125015402000250032003700 Neutral Pole Amperes frame (A)800125016002000250032004000 Number of Poles (3) (4)3 - 43 - 43 - 43 - 43 - 43 - 43 - 4AC Rated Insulated Voltage [Ui]( ) (5)1000100010001000100010001000 Rated Operational Voltage [Ue]( ) (6)690690690690690690690(AC Rated Breaking Cap [kA sym rms)/MAKING CAP [kA peak]IEC, EN, ASAC 690V (7)]

3 50/10550/10550/10550/10565/14365/14375/1 65[/cs = /cu]440V65/143 (8)65/143 (8)65/143 (8)65/143 (8)85/187 (8)85/187 (8)100/220 (8)NEMAAC 600V42 ANSI480V50/11550/11550/11550/11565 (9) DC 600V (10)40/4040/4040/4040/4040/4040/4040/402 50V40/4040/4040/4040/4040/4040/4040/40 Non Automatic UnitRated Impulse Withstand Voltage [Uimp] (kV)1212121212 1212 Rated Short Time Withstand1s6565656585 85100 Current[/cw][kA rms]3s5050505065 6575 Latching Current (kA)656565658585100 Total Breaking Time (s) Operation TimeSpring Charging Time (s) Time (s) (kg) draw-out type73 - 8673 - 8676 - 9079 - 94105 - 125105 - 125139 - 176 Outlined Dimensions (mm)360 - 445360 - 445360 - 445360 - 445466 - 586466 - 586- - 460460460460460460- -290290290290290290- -757575757575- -354 - 439354 - 439 354 - 439354 - 439460 - 580460 - 580631 - 8014604604604604604604603453453453453453 4534540404040404053800KA & 100KA Icu available end of 2003.

4 Contact Dorman Smith for Z-Frame International Compliance2 CircuitWithstand Voltage (at 50/60Hz)Rated Impulse Withstand Voltage UimpMain CircuitControl CircuitsConnecting Bar Sizes (mm)Based Standards Ambient temp ( C)2x50x52x80x52x100x53x100x52x100x103x10 0x104x150x6 IEC60947-240 (Standard) , SG-340 (Standard)800125015402000250032003700 ANSI : The values of 800A, 1250A & 1600A are for horizontal terminals on both line and load values of 2000A, 2500A, 3200A & 4000A are for vertical terminals on both line and load figures are subject to the design of the enclosure and rating of StrengthDeratingBetween 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 AccessoriesNote.

5 The values shown above are those measured on phase connections and cannot be applied to control terminals on the switchesFor general serviceFor microloadPosition switchesOver-current release (OCR) Power supply for undervoltage12kV6kV4kV4kV4kV6kV4kVFrameR ated current (A)800125016002000250032004000DC internal resistance per pole (m ) power consumption for 3 poles (W)1703103504906007801060Z4 Internal Resistance and Power ConsumptionZ3Z2 Loadline Z-Frame Characteristics310020030050010002000 ; 6 graduations75175275475975197517027037057 010702070 Time-delay [time] (s)0 - - - - - - - - - ; 10 graduationsPower consumption: 5 VAAC100 - 120V DC100 - 125V DC24 VAC200 - 240V DC200 - 250V DC48 VPick-up voltage (V)External Supply voltageNote.

6 Regd for AGR11L - AL, AGR11L - GL[ICT]x( - - - - - - NON) ; 8 graduationsUVT rated supply voltage [Uc]x( - - ) ;4 graduationsCurrent setting tolerance (%)Time-delay [tp1] (s Resettable time (ms)Max. total clearing time (ms)+20%OCR Control VoltageGFUVTC ommon)Common)Common)PTAA djustable Pre-trip Alarm CharacteristicsAdjustable Long Time-delay Trip CharacteristicsType AGR-11L, 21L, 22 LProtection FunctionsSetting RangeLTSTPick-up current [ IR] (A)Pick-up current [Ii] (A)Pick-up current [Isd] (A)Time-delay [tR] (s)Time-delay [tsd] (ms) Relay timeResettable time (ms)Max. total clearing time (ms)Current setting tolerance (%)Time -delay setting tolerance (0%)[In]x( - - - - NON) ; 6 graduations Non tripping when load current <([IR] ). Tripping when ([IR] )< load current <([IR] ) [In]x(1 - - 2 - - 3 - 4 - 6- 8 - 10 NON) ; 10 graduations+15%50100200400600800 ; 6 graduations25751753755757751201702704706 70870( - - - 5 - 10- 15 - 20 - 25 - 30) at 600% of [ IR]; 9 graduations+15% + 150ms - 0msAdjustable Short Time-delay Trip CharacteristicsTripping at 600% of [In] with LT time-delay [tR]INSTMCRA djustable Instantaneous Trip Characteristics[In]x(2 - 4 - 6 - 8 - 10 - 12 - 14 - 16- NON) ; 9 graduationsTime-delay [tp1] (s)(5 - 10 - 15 - 20 - 40 - 60 - 80 - 120- 160 - 200) at [IP1or more ;10 graduationsTime-delay setting tolerance (%)+15% + 100ms - 0msCurrent setting tolerance (%)+20%Pick-up current [Ip1] (A)[In]x( - - - - ).]

7 6 graduationsPick-up current [Ig] (A)Current setting tolerance (%)+ setting tolerance (%)Time-delay [tp1] (s)+15% +150ms - 0msN-phase Protection CharacteristicsNP[ICT]x( - - - ); Factory set to a user-specified value Non tripping when load current <([IR] ). Tripping when ([IR] )< load current <([IR] ) Key_: Default SettingUndervoltage Trip Characteristics (AGR -21,22 only)Adjustable Ground Fault Trip CharacteristicsNote; Set [Ig] to 1200A or lessPick-up current [Ig] (A) Loadline Z-Frame OCR Characteristics4LT - Overload ProtectionAdjustable from 40 - 100% of rated current incorporating true controlled devices eliminate nuisance tripping by responding tothe true value of the waveform. Neutral protection for all Triple-N harmonics,such as 3rd, 9th and 15th, and also a thermal memory as - Short TimeAdjustable in current and time the current can be set so discrimination is achievedwith the down stream device.

8 There is also a ramp selector switch to reduce theangle of the curve from a right angle to a 45 angle allowing better time setting enhances this by allowing the down stream device time to clear thefault before the ACB - Instantaneous TripAdjustable from 2 XInupto 16 XIn or none. This setting protects from short circuitcurrents on the system, detects and executes the tripping in a short time less - 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 - Ground Fault ProtectionRestricted and unrestricted ground fault protection is available on the same relay asa special specification.

9 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 Neutral CT supplied, loose with all 3 pole ACB - 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 CharacteristicST CharacteristicINST CharacteristicLoadline Z-Frame OCR Characteristics5 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.

10 Zone selective interlocking is available to provide zerotime delay - 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 shown are withRamp (I2t Sw) in off ShownLT100%ST400%INST1000%1 1 2 2 3 3 4 5 4 5 Optionalq- 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 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 When the OCR is set to start operation at 100% of the rated current, its operating time in HOT start mode is approx.