OCR alarm (AL) (standard) When it happen to trip by over current, ground fault ( GFR ) and Earth leakage ( ER ), it issue a warning alarm.

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1 A Power supply module This module provides control source for DISPLAY module,trip indicator and several indicators (LEDs). (Even when the control power source is off, the function of over current protection and ground fault protection are effective.) There are two types of power supply modules, one is only of power supply function, the other is power supply function with output contact (6 contacts). D C F E B Main setting module This module provides the function of over current protection. It is possible to select the three setting module according to application. (see page -6) Neutral protection of rated current (00%) function is standard at pole breaker. H Optional setting module (option) Additional functions and characteristics can be selected by optional setting modules. A B C D E F Display (option) Several measuring data (current, voltage, power etc) and alarms can be displayed with this module. Extension module (option) This module is required when installed VT unit, display module and each interface unit. Load current LED (standard) This indicator displays the maximum current of phase. RUN LED, ERR. LED (standard) This indicator displays the ETR situation (Run or Error) Trip indicator LED (standard) This indicator displays the trip cause. G F Pre-alarm(PAL) (standard) This indicator displays the Pre-Alarm situation when exceed the setting current. When it installed power supply module with contact, the output contact of Pre Alarm is available. * The output is reset when the electric current goes below the set level after an alarm is set off. G RESET button (standard) When push this reset button, trip indicator, and Pre-Alarm will be reseted. And when the instantaneous test by MITSUBISHI special tester and push this reset button, as a result of LTD and STD function become ineffective. H TEST terminal (standard) This terminal already installed as standard. This terminal is used for testing by the field test device (Y-000). (see page ) OCR alarm (AL) (standard) When it happen to trip by over current, ground fault ( GFR ) and Earth leakage ( ER ), it issue a warning alarm. Neutral pole overcurrent protection (NP) (standard) When harmonics in load current are large, the current on neutral pole exceeding rated current may flow. Harmonics may cause some troubles. Neutral pole overcurrent protection prevents them by operating at 00% of rated current on neutral pole. MCR:Making current release (option) Just under the breaker closing operation ( from open to close ), Instantaneous characteristic become effective, but after closing the breaker, instantaneous characteristic become ineffective. When you order the MCR switch, MCR switch is built in the main body. If MCR switch is built in the main body and the adjust dial of INST/MCR on main setting module is set the MCR position,mcr function become effective. TAL (option) When the temperature of main contacts exceed normal temperature level, temperature alarm is indicated at LED ( on main setting module ) and output by contact ( only installed power supply with output contact ). If TAL is installed in the breaker according your order, Temperature alarm ( LED ) function become effective. When the temperature goes down within normal tempter level, the temperature alarm will be reset. NCT (option) Neutral CT is required for Ground fault or Neutral pole protection, when pole breaker is used for phase wires system. ZCT (option) ZCT is required for a few amperes earth leakage protection, and is combining ER plug. (see page 8)

2 Characteristic table WS General use LTD+STD+ INST/MCR NA G E AP N Nothing Ground fault Earth leakage nd additional Pre-alarm Neutral pole 0% protection WM Generator protection use LTD+STD+ INST/MCR WB Special use INST/MCR Power supply module Type P P P P P Note: Note: Rating 00-0V AC DC -60V DC 00-0V AC 00-V DC -60V DC 00-0V DC alarm output Nothing Nothing 6 output contacts 6 output contacts 6 output contacts (SSR) Over current protection and ground fault protection operates without control power source. Factory setting of 6 output contacts is as follows. ➀ LTD Self-holding ➁ ➂ STD/INST G/E/AP Self-holding Refer to lower table ETR dial set G E TRIP side Self-holding Self-holding ALARM side Automatic Automatic reset reset ➃ PAL Automatic reset AP Automatic reset ➄ TAL Automatic reset ➅ ERR Automatic reset Self-holding: The output is maintained until it resets. Automatic reset: The output will be reset if it backs to normal condition. Contact capacity(type code P, P) Current (A) Resistive load Inductive load Voltage(V) cosφ=0. cosφ=.0 L/R=7ms 0 0. AC DC Current capacity(type code P) Voltage(V) AC DC Normal current 0.A 0.A 0.A 0.A Peak inrush current 0.A 0.A 0.A 0.A ON resistance (max.) Ω Ω Ω Ω CT rating table AE6-SW AE000-SW AE0-SW AE600-SW AE000-SWA 6A 000A 0A 600A 000A AE000-SW AE00-SW AE0-SW AE000-SWA 0A A 00A 0A 600A 000A 00A 0A 000A Note: AE6-SW and AE000-SW has low rating type. Please refer to the Ordering information sheet. (Page 7-9) Note: Low rating type of AE6-SW is not available for the ground fault protection. Note: As for details of ratings, refer to page 9 and page 0. AE000-SW AE000-SW AE60-SW 000A 000A 60A Electronic trip relay(etr) type code Main setting module Optional setting module Power supply WS, WB, WM AE6 600-SW, G: Ground fault protection P: AC DC00-0V AE000 0-SW, N: Neutral pole 0% protection P: DC-60V AE000-SW E: Earth leakage protection P: AC00-0V / DC00-V WS, WB, WM AE000-SWA, AP: nd Additional Pre-alarm with output contact AE000-SWA, P: DC-60V with output contact AE000-SW NA: Without optional setting WS,WB,WM AE60-SW WS : General use P: DC00-0V with output contact (SSR) WM : Generator protection use WB : INST/MCR only Additional function Extension module(ex) Display(DP) Display onto panel board(dp) VT unit(vt) Temperature alarm(tal) MCR switch(mcr-sw) Network BIF-CC BIF-PR BIF-MD

3 G D E F B A L H I J K A B C D E F G H I J K L M N O P Trip indicator LED Pre-alarm LED Temperature alarm LED Load current LED RUN LED ERR. LED Current setting dial Uninterrupted current setting dial LTD time setting dial STD pick-up setting dial STD time setting dial INST/MCR pick-up current setting dial Optional setting module (P.7~9) Pre-alarm current setting dial RESET button (TEST L/S LOCK button) TEST terminal C M Note: The figure shown WS type with G plug. G is option. P O Relation of setting dial In (CT rating) Ir Iu Ip Ig (P.7) Isd Ip (P.9) N Ii Load current LED (60, 80, 00%, OVER) Adjustable setting range No. Setting item Mark Adjustable setting range Accuracy Factory default value G Current setting Ir 0. ~.0 (0.0step) x In (CT rating).0 H Uninterrupted current Iu 0.8 ~.0 x Ir (0.0step), Pick-up current :. x Iu.0 x Iu Non Pick-up. x Iu Pick-up.0 I LTD time TL s at Iu x ± 0% 0 J STD pick-up current Isd x Ir ± % 0 K STD time Tsd s (I t ON) (I t OFF) AE6-SW~AE600-SW AE000-SW~AE0-SW AE000-SW at Isd x (INST) (MCR) x Ir WS ± 0% It operates in the range between 0.0 and 0.08s when the time set at 0.06s. 0. (I t ON) WS 6 (INST) L INST/MCR pick-up current Ii AE000-SWA, AE000-SWA AE000-SW (INST) (MCR) x Ir WS ± % WS (INST) AE60-SW (INST) (MCR) x Ir WS WS 0 (INST) N Pre-alarm current Ip Iu x 0.68 ~.0 (0.0step) OVER ± 0% OVER Pre-alarm time Tp / TL at Iu x (after / TL, PAL contact output turns on.) ± 0% Upper figure and table denote the case optional MCR function is included.

4 Operating characteristic curve (for general use : WS) (h) PAL current : Ip Iu x 0.68~.0(0.0step)-OVER ±0% Uninterrupted current : Iu 0.8~.0 x Ir(0.0step) LTD Pick-up.0 x Iu Non pick-up. x Iu Pick-up 0 0 (min) LTD time : TL (s) ±0% (at Iu x ) 0 0 operating time (s) 0 0 PAL time : Tp TL/ ±0%(at Iu x ) STD pick-up current : Isd Ir x ±% 0 0 With MCR (s)... STD time : Tsd Note (s) ±0% (at Isd x.) Current LTD Pick-up, Ip % of Uninterrupted current Iu Iu, Isd, Ii % of Current setting Ir Note When Tsd="0.06"setting,operating time is 0.0~0.08s. I t is selectable ON or OFF I t ON (ramp) I t OFF INST/MCR pick-up current : Ii Ir x ±% WS Ir x ±% WS Ir x ±% WS Max. breaking time (In case of AE000-SW~ 60-SW, it is 0.0s) current (%) Note : The slope of LTD curve can be changed easily in case a relay for protective coordination (WF relay) is used instead of WS relay. As for the details about WF relay, please make inquiries

5 D E F B A K G H I J A B C D E F G H I J K L M N O Trip indicator LED Pre-alarm LED Temperature alarm LED Load current LED RUN LED ERR. LED LTD pick-up current LTD time setting dial STD pick-up setting dial STD time setting dial INST/MCR pick-up current setting dial Optional setting module (P.7~9) Pre-alarm current setting dial RESET button (TEST L/S LOCK button) TEST terminal C L Note: The figure shown WM type with G plug and Display (DP). G and DP are options. N Relation of setting dial In (CT rating) Ir (Fixed) IL Ip O Ig (P.7) Isd Ip (P.9) M Ii Load current LED (0, 60, 80, 00%) Adjustable setting range No. Setting item Mark Adjustable setting range Accuracy Factory default value Current setting Ir 0.6 ~.0 x In (Adjust by factory : Fixed) Comply with ordering sheet G LTD pick-up current IL x Ir ± %. H LTD time TL s at IL x. ± 0% 0 I STD pick-up current Isd.... x Ir ± % J STD time Tsd s (I t ON) (I t OFF) AE6-SW~AE600-SW AE000-SW~AE0-SW AE000-SW at Isd x (INST) (MCR) x Ir WM ± 0% It operates in the range between 0.0 and 0.08s when the time set at 0.06s. 0. (I t ON) WM 6 (INST) K INST/MCR pick-up current Ii AE000-SWA, AE000-SWA AE000-SW (INST) (MCR) x Ir WM ± % WM (INST) AE60-SW (INST) (MCR) x Ir WM WM 0 (INST) M Pre-alarm current Ip IL x 0.68 ~.0 (0.0step) OVER ± % OVER Pre-alarm time Tp / TL at IL x. (after / TL, PAL contact output turns on.) ± 0% Upper figure and table denote the case optional MCR function is included. Pre-alarm current OVER setting is equal to.0.

6 Operating characteristic curve (for generator protection use : WM) (h) Pre-alarm current : Ip IL x 0.68 ~.0(0.0step) ±0% ±% LTD pick-up current : IL ±% Factory setting position is. 0 0 (min) LTD time : TL (s) ±0% (at IL x.) operating time (s) 0 Pre-alarm time : Tp TL/ ±0%(at IL x.) STD pick-up current : Isd Ir x ±% 0 STD time : Tsd Note (s) ±0% (at Isd x.) With MCR (s) IL, Isd, Ii Current % of Current setting Ir Ip % of LTD pick-up current IL Note When Tsd="0.06"setting,operating time is 0.0~0.08s. I t is ON/OFF selectable. I t ON (ramp) I t OFF INST/MCR pick-up current : Ii Max. breaking time Ir x ±% WM (In case of AE000-SW~ Ir x ±% WM 60-SS 60-SW, it it is is 0.0s) Ir x ±% WM current (%)

7 D E F B A G H A Trip indicator LED B Pre-alarm LED C Temperature alarm LED D Load current LED E RUN LED F ERR. LED G Current setting dial H INST/MCR pick-up current setting dial I Pre-alarm current setting dial J RESET button K TEST terminal C Relation of setting dial K J In (CT rating) Ir Ig (P.7) Ii Ip Ip (P.9) Load current LED (60, 80, 00%, OVER) I Adjustable setting range No. Setting item Mark Adjustable setting range Accuracy Factory default value G Current setting Ir 0. ~.0 (0.0step) x In (CT rating).0 AE6-SW~AE600-SW AE000-SW~AE0-SW AE000-SW (INST) (MCR) x Ir WB WB 6 (INST) H INST/MCR pick-up current Ii AE000-SWA, AE000-SWA AE000-SW (INST) (MCR) x Ir WB ± % WB (INST) AE60-SW (INST) (MCR) x Ir WB WB 0 (INST) I Pre-alarm current Ip Ir x 0.68 ~.0 (0.0step) OVER ± 0% OVER Pre-alarm time Tp 7s at Ir x (after 7s, PAL contact output turns on.) ± 0% Upper figure and table denote the case optional MCR function is included.

8 Operating characteristic curve (for special use : WB) (h) Pre-alarm current: Ip Ir x 0.68 ~.0(0.0step)-OVER ±0% Pre-alarm time: Tp 7s ±0% at Ir x Max. time of let-through current (min) 00 Max. Setting of External OCR operating time (s) 0 0 INST/MCR pick-up current: Ii Ir x ±% WB Ir x ±% WB Ir x ±% WB Up to Icw (s)..... Up to Icw Current Ip, Ii % of Current setting Ir Max. breaking time (In case of AE000-SW~ 60-SW, it is 0.0s) current(%)

9 Accessories Ground fault protection(gfr) The ground fault protection (GFR) of several hundred amperes is possible. This function can be selected for trip and alarm (no trip). Power supply is necessary for this function, even if there is not power supply, it can function at 0.xIn or higher. Setting item Mark Adjustable setting range GFR pick-up current Ig x In <0. - < s GFR time Tg TRIP ALARM (at. x Ig) alarm output TRIP side : Self-holding/ALARM side : Automatic reset Accuracy ±0% ±0% Factory default value.0 s (TRIP) TRIP side (Self-holding) Neutral CT(NCT) Only use for AE-SW The Neutral CT is used for ground fault protection when the pole breaker is used on a phase wires system and for over current protection on N phase. Please use this CT in combination with ground fault protection (GFR). As for outline dimensions, refer to page 0. The length of the cable (attached) for NCT is m. GFR function block diagram (In case of pole breaker) ACB Ground fault protection characteristics Alarm contact output ETR P P Control power supply Pick-up current : Ig In x 0.~.0 ±0% (0.step) 0..0 Block diagram with NCT function ACB.0 ±0% Alarm contact output ETR N N P P Control power supply operating time (s).. Ground fault time: Tg < s NCT. NCT type name ACB type name / CT rating Applicable NCT type name. 0. ±0% AE6-SW 6A AE000-SW 000A AE0-SW 0A AE600-SW 600A AE000-SWA 000A AE000-SW 0A AE000-SW 600A AE000-SW 000A AE00-SW 00A NCT06 NCT0 NCT NCT6 NCT0 NCT <0. (0.0~0.) AE0-SW 0A AE000-SWA 000A As for outline dimensional drawing, refer to page 0. NCT NCT Ground fault current (% of CT rating In)

10 Earth leakage protection(er) By combining the ETR with earth leakage protection (ER) and External ZCT, earth leakage protection is possible. Earth leakage protection, earth leakage tripping and earth leakage alarm can be selected. Control supply is necessary for this function. Setting item Mark Adjustable setting range ER pick-up current ER time IΔn A-A-A-A-0A <0. - < s Te TRIP ALARM (at. x IΔn) alarm output TRIP side : Self-holding/ALARM side : Automatic reset Accuracy +0% % ±0% Factory default value 0A s (TRIP) TRIP side (Self-holding) External ZCT ER function block diagram (for load circuit method) This option is used to detect several amperes of earth leakage when use in combination with a electronic trip relay that has the earth leakage tripping (ER) option. Two methods are available. The first is where the all load conductors pass through the ZCT. The other method uses a smaller ZCT through which the supply transformer's ground wire passes through to earth. ZCT for load circuit ZCT type name ACB type name ZCT6 AE6-SW ~ AE600-SW -pole AE6-SW ~ AE600-SW -pole ZCT AE000-SW ~ AE0-SW -pole ZCT AE000-SW ~ AE0-SW -pole As for outline dimensions refer to page 0. Make choice of suitable ZCT in comformity to the BUSBAR size. ACB ZCT 0 Pick-up current : IΔn A ZCT for transformer ground wire ZTB ZTB ZT0B ZT60B ZT80B ZT00B Earth leakage protection characteristics -% 0 ETR with ER Z Z 8 6 A 0A P P Control power supply.0 ±0% Alarm contact output ER function block diagram (transformer ground wire method) ACB operating time (s)... Earth leakage protection operating time :Te < s ZCT Z Z ETR with ER. 0. ±0% P P Control power supply. <0. (0.0~0.) Alarm contact output Earth leakage current (A)

11 Accessories nd Additional Pre-alarm (AP) The Pre-Alarm (st) function already installed in standard breaker, the nd additional Pre-Alarm function can be installed as option, thereby it is possible to monitor (observer) electric circuit in more detail by nd additional Pre-Alarm function. Setting item Mark Adjustable setting range nd Additional Pre-alarm pick-up current Accuracy Factory default value x Iu WS ±0% WS Ip x IL WM ±% WM nd Additional Pre-alarm time Tp x TL s (x TL) (FLAT) ±0% 0.9 (x TL) Pre-alarm timing chart Ip Current Current PAL LED Blinking Lighting PAL OUT (contact output) / TL ON OFF Neutral pole 0% protection(n) Neutral pole overcurrent protection (operating at 00% of rated current) come already eqipped with ETR as standard features. But if you would like to operate at 0% of rated current on neutral pole, neutral pole 0% protection is availabe with this optional module unit.

12 MCR switch (MCR-SW) If MCR switch is built in the breaker and the dial for INST/MCR on Main setting module is set to the range of MCR position, MCR function is operative. MCR function: During a closing operation of the breaker, Instantaneous characteristics is operative. And it becomes inoperative when the breaker is in the closed position. Temperature alarm (TAL) If TAL sensor is built in the breaker, temperature alarm is operative. When the temperature of main contact exceeds normal level, temperature alarm is indicated by LED on main setting module and also the output contact is made energize if power supply with output contact is installed. It is possible to know temperature rising which is caused by wear of main contact because TAL sensor is installed near main contact. When the temperature of main contact goes down to the normal level, temperature alarm turns off automatically. Field test device (Y-000) The electronic trip relay can be checked by this field test device when the breaker is at test position or disconnect position. The breaker will trip when tested with this device. Y-000 specification TEST ITEM TEST SIGNAL RANGE OUTLINE DIMENSION TIMER POWER SUPPLY LTD,STD,INST,GFR,PAL % ~ 00% (W) x 0(H) x 90(D) ~ s 00 0V AC 0 / 60Hz

13 Additional functions By adding the extension module unit in ETR, additional functions like measuring, display and communication become available. List of extension unit Name Type Description Extension module Display module (relay attachment) Display module (panel attachment) VT unit CC-Link interface unit PROFIBUS-DP interface unit MODBUS (RS-8) interface unit I/O unit Drawout position switch EX DP DP VT BIF-CC BIF-PR BIF-MD BIF-CON BIF-CL Base module for display and interface function (indispensable) Display module for ETR Display module for panel board Module for measuring of voltage, active power and active energy Interface unit for CC-Link Interface unit for PROFIBUS-DP Interface unit for MODBUS (RS-8) Module for breaker remote control (Interface unit is required) Switch for detecting the drawout position of the breaker (Interface unit and I/O unit are required.) Selection samples of additional function modules Additional function Name Type Extension module EX Display VT unit ( :required optional modules) Interface unit DP or/and DP VT BIF-CC BIF-PR BIF-MD Load current Display Communication CC-Link Display & Communication PROFIBUS-DP MODBUS CC-Link PROFIBUS-DP MODBUS Voltage Power Energy Harmonics current etc. Display Communication CC-Link PROFIBUS-DP MODBUS Display & Communication CC-Link PROFIBUS-DP MODBUS DP (on the Panel) DP EX(inside breaker) VT unit (placed separately) BIF-CC BIF-PR BIF-MD Interface unit (placed separately) Electronic trip relay(etr) type code Main setting module Optional setting module Power supply WS, WB, WM AE6 600-SW, G: Ground fault protection P: AC DC00-0V AE000 0-SW, N: Neutral pole 0% protection P: DC-60V AE000-SW WS, WB, WM AE000-SWA, E: Earth leakage protection P: AC00-0V / DC00-V AE000-SWA, AP: nd Additional Pre-alarm with output contact AE000-SW P: DC-60V with output contact NA: Without optional setting WS,WB,WM AE60-SW P: DC00-0V with output contact (SSR) WS : General use WM : Generator protection use WB : INST/MCR only Additional function Extension module(ex) Display(DP) Display onto panel board(dp) VT unit(vt) Temperature alarm(tal) MCR switch(mcr-sw) Network BIF-CC BIF-PR BIF-MD Wire system (when EX is specified) φw φw EX Normal connection Inverse connection

14 Extension module (EX) This is the base module that provides various additional functions with combining Display module (DP / DP), Interface unit (BIF-CC / BIF-PR / BIF-MD) and VT unit (VT). Various measuring elements, high measuring accuracy By adopting high-performance ASIC, various measuring elememts (load current, voltage, energy, harmonics, etc.) and high measuring accuracy are attained. Refer to page for more details. Communication function display modules and interface unit can be connected simultaneously with its advanced internal communication. Display module (DP/DP) This is the module that displays and sets various information, for example, displays of measurement, trip and alarm, setting of output contacts and so on. Multi display of measuring element It enables to easily monitor the comparison of each measuring element with its multi display ( phases multi display of load current and voltage) on one screen. Two-color back light Under trip or alarm, back light color changes from green to red automatically, which visually shows an abnormal situation. Graphical display By adopting dot matrix type LCD, graphical display such as bar graph display of load current, harmonic currents and characteristic curve is available. There are types of display module. One is the ETR attachment type (DP). Another is the panel attachment type (DP), which can be connected to extension terminals of control circuit with m cable. units of display modules (DP and DP) can be attached on one breaker. (As for outline dimensions of DP, refer to page.) Note; Extension module (EX) is required. VT unit (VT) is required to display the measured data except load current. VT unit (VT) VT unit enables to measure voltages, powers, energies, harmonic currents and etc. by connecting the ETR with Extension module (EX). (outline dimensions are shown in page.) Note; The length of the cable attached for VT unit is m.

15 Network Interface unit (BIF-CC/BIF-PR/BIF-MD) BIF-CC (CC-Link ) These Interface units can expand the future possibility in various communication and Intelligent control. Applicable to various open networks. These units are applicable to various open network systems such as CC-Link, PROFIBUS-DP and MODBUS (RS-8), which can be built in easily. Intelligent control by Multi-data communication It comes into being the Intelligent control by Multi-data communication through these interface units to PLC/SCADA, which transfer the measurement Information, setting values, error information and trip and alarm informations. Personal Computer By using various application softwares for PLC, users can also connect to the network SCADA system. MELSECNET/0 Interface card MELSECNET/0 CC-Link / PROFIBUS-DP / MODBUS BIF-PR (PROFIBUS-DP) PLC Interface Unit I/O Unit MDU Eco Monitor Pro ME0NSR AE-SW The length of the cable for interface unit is m. Note: Some device types are excluded. Note: BIF-MD (MODBUS (RS-8)) Extension module (EX) is required. VT unit (VT) is required to transmit the measured data except load current. I/O unit (BIF-CON) The Input & Output Controlling Unit (BIF-CON) is available for the remote controlling and remote monitoring of the breaker condition through the various network systems. With this BIF-CON unit in addition to the Interface Unit, it become possible to control the breaker remotely, like a ON or OFF operations or Spring-charging. Function Description Note Control Breaker ON operation Breaker OFF operation a contact for Closing coil (CC) a contact for Shunt trip device (SHT) (not applicable for AC80-00V rating) BIF-CON Spring charge a contact for Motor charging (MD) Monitor Digital Input (DI) monitoring For BIF-CC and BIF-MD, Max. contacts monitoring are available. For BIF-PR, contact monitoring is available. Drawout position switch (BIF-CL) With this Drawout position switch (BIF-CL) in addition to Interface unit and I/O unit (BIF-CON), the remote monitoring of draw-out position become available in case of the breaker draw-out type. Function Description Note Monitor Breaker Drawout position Position : Connect or Test or Disconnect BIF-CL

16 : can be displayed by DP/DP : can be displayed and set by DP/DP Combination sample Type ➀ ➁ ➂ Note ) - ;EX;DP(;DP) ➀ ➁ ➂ Note ) - ;EX;DP(;DP),VT Measurement Trip history Alarm history ➀Main setting module ➁Optional setting module ➂Power supply Load current (±.%) Note ) Leakage current (±%) Voltage (±.%) Power (active,reactive,apparent) (±.%) Power factor (±%) Energy (active,reactive) (±.%) Harmonics current (±.%) Frequency (±.%) LTD STD INST GFR ER UVT PAL PAL OVER GFR EPAL ER TAL Note ) Note ) Characteristic setting (panel attachment product [DP] only) LTD STD INST PAL PAL GFR EPAL ER Setting Contact outputs setting change Reset Date & Time Demand time Alarm holding method Trip and alarm information Measurement information (min. and max. values) ETR information Main / Optional setting module information Error information CT rating (In) Phase line method Normal connection or reverse connection WS NA AP G E Note ) units of display modules can be attached. Note ) Display is available only when UVT module is attached. Note ) Display is available only when TAL sensor is attached. Note ) Included the accuracy of ZCT. WM NA AP G E P~P Note ) WB NA AP G E WS NA AP G E WM NA AP G E P~P (...9th) Note ) WB NA AP G E

17 Electronic trip relay circuit diagram ➀ ➁ Power supply CT Current sensor coil Upper side terminal Test connector N N N Z Z Lower side terminal Rectifier circuit ➂ Power supply circuit V+ 0V V+ ASIC ➃ Integration circuit Ground fault Integration/ composition circuit and Earth leakage circuit Constant voltage circuit Phase selection sampling W.D.T. Electronic trip relay (ETR) ➅ Microprocessor Characteristic Setting module Setting input A/D CPU I/O Characteristics and Alarm s/w ➄ Trip coil Trigger circuit V+ 0V ➇ ➆ Load current LED OVER PAL LED RUN, ERR. LED Trip indicator LED Power supply with contact output Alarm contact control circuit RESET CIRCUIT Control power circuit FG 6 7 RS RS P P P ➀ ➁ ➂ ➃ ➄ ➅ ➆ ➇ Power supply CT Energy is supplied for the operation of the overcurrent tripping and ground fault tripping(gfr) function of the electronic trip relay. Current sensor coil The current in each phase flowing through in the breaker is detected. A air core coil which has good linearity is achieved. Power supply circuit This part convert power supply CT energy to constant voltage for respective circuits in the ETR. ASIC This amplifies signal detected by the current sensor coil, and detects ground fault current by vector composition. Microprocessor The microprocessor integrates each phase current waveforms from the ASIC and performs processing for overcurrent protection and others. Characteristic setting module The module for the characteristic setting of the ETR. Several LEDs The load current LED give a figure of current in percent by CT energy. Trip indicator and pre-alarm are indicated by control power supply. RUN and ERR. LED indicate breaker's condition by control power supply or ten-odd percent of CT energy. Power supply with contact output This outputs contact signal at fault cause (including pre-alarm) and at other alarms. A control supply is necessary for this function.

18 Setting procedure Press the screwdriver in the direction of the arrow to open the cover Prepare a small flat tipped screwdriver. 6mm max. 0.8mm max. Side view of the flat tip ETR cover Operating hole for resetting Sealing hole Insert the flat tipped screwdriver into the opening of the ETR cover. Then, lightly turn the screwdriver to the upside as shown in the left figure, and the ETR cover will open. There are two kinds of switches for characteristics setting and for trip indicator reset. They should be used as follows. ➀ Adjustable in steps Rotary code switch is used. Do not set the switch at points between steps. The setting value is same when the switch is positioned at the thick line. (Set the switch with a torque of 0.0N m or below.) (XIu) ➁ Push-button This is for temporary operation, and press it with force of N or less. ➀Adjustable in steps ➁Push-button When the characteristic is set up, use a device like a field tester, etc to make sure that the required characteristic has been set. At sealing, seal the ETR cover by using the sealing hole at the top of the ETR cover. Sealing hole

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