C2
51
DT1
DT2
A2
S2
97
524
534
544
554
574
P4
N2
N1
52
54
44
34
24
14
42
32
22
12
C1
D1
D2
A1
S1
P2
P1
L1
Power supply CT
and Current
sensor CT
Breaker
Main
circuit
P.22
P.23
P.16
P.17
P.17
P.19
P.11,15,16
Electronic trip
relay (ETR)
Control power circuit/
alarm contact
Electronic operation
circuit
Auxiliary switch
(normal close)
Auxiliary switch
(normal open)
Cell switch
OCR
alarm
Voltage forbid
to be applied
NCT
ERR.
PAL
GF
STD/INST
LTD
OFF
ON
Dielectric test forbidden
Electronic trip
relay (ETR)
Reset circuit
Power circuit
Close to ON
(less than 10 m)
Close to reset alarm
(less than 2 m)
Power supply
Common
RESET
Power supply
Solenoid
Controller
A
CB ON b
utton
Trip
Circuit
AL
LAX
LAX
SBC
SBC
SBC
SBC
SBC
LAX
LAX
LAX
LAX
LAX
LAX
LAX
LAX
FG
Short
bar
Open to trip
(less than 2 m)
Cell switch
L2 L3 N
513
98
341
CL4
331
CL3
321
CL2
311
CL1
344 342 334 332
322
324
312
314
OFF
ON
41
31
21
11
53
43
33
23
13
SHT
UVT
RS2
RS1
30
31
Wiring diagram
10
10
Wiring diagram
The following diagram shows the case that accessories are fully equipped. For the N pole, the following diagram
shows the (Standard) case that the accessories are equipped on the right side.
Wiring diagram
13
14
~
53
54
Auxiliary switch “a contacts”
11
12
~
51
52
Auxiliary switch “b contacts”
D1
D2
Voltage Input terminal of UVT
DT1
DT2
Trip terminal of UVT (Remote trip)
A1
A2
Power supply for Solenoid Controller
S1
S2
External ON (Close by remote control)
C1
C2
Shunt trip
97
98
OCR alarm
P1
P2
Power supply for ETR
P4
FG of power supply (FG: Frame Ground)
RS1
RS2
Alarm reset (Trip cause, alarm contact)
513
,
524
,
534
,
544
,
554
,
574
Trip cause, alarm contact
N1
N2
For Neutral CT (NCT)
SHT
Shunt tripping device
UVT
UVT coil
LAX
Auxiliary switch Standard
AL
OCR alarm switch
SBC
Shorting b contact
CL
Cell switch
Terminal description
Accessory Symbols
Internal wiring
External wiring (userʼs wiring)
Control circuit connector (drawout type)
• On the drawout type, the cables should have the length which allow the control circuit terminal block to be moved to the left or
right by 5 mm.
• When a coil load is connected in the same control circuit as the ETR, surge absorbers are required to absorb the surge voltage.
• Since some terminals are polarized, the wiring should be done correctly as the polarity shown in the wiring diagram when the
control voltage is DC.
• To close the circuit breaker remotely, connect a switch between terminals S1 and S2 .
The switch used for remote close should be rated 30 V DC 10 mA or more (minimum applicable load 15 V DC 1 mA or less).
• For the power supply type P3 or P4, the high sensitive relay used in contact output may cause the chattering noise (wrong output
of 1 ms level) during ON and OFF operation, depending on the panel placing condition. When it used in the quick responsive
sequence, the filter circuit of a few milli-second (ms) should be provided or the double reading sampling should be implemented.
• Alarm reset (Terminal: RS1 and RS2 ) and Alarm contacts (Terminal: 513 , 524 , 534 , 544 , 554 , 574 ) are available only
for power supply type P3, P4. The switch used for remote reset should be rated at 15 V DC 10 mA or more. Alarms will be reset
if terminals RS1 and RS2 are short-circuited for 0.5 seconds or longer.
• Under voltage trip device (UVT)
The switch used for remote trip should be rated 30 V DC 10 mA or more (minimum applicable load 15 V DC 1 mA or less).
Remote trip terminal has short bar at shipment, so remove it before using this function.
Disconnect the voltage input wires during dielectric testing of main circuit.
Applying power to the terminals A1 and A2 changes the terminals S1 and S2 to the live part. Applying power to the terminals
D1 and D2 changes a terminals DT1 and DT2 to the live part. Do not touch the terminals.
