Wiring Diagram - Mitsubishi Electric V Series Manual

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.
L1 L2 L3 N
Power supply CT
Electronic trip
and Current relay (ETR)
sensor CT
N1 N2
10
NCT
Breaker
Voltage forbid
to be applied
Dielectric test forbidden
Main Electronic trip
circuit relay (ETR)
P.22
Terminal description
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)
30 RS1 RS2 Alarm reset (Trip cause, alarm contact)
513 , 524 , 534 , 544 , 554 , 574 Trip cause, alarm contact
N1 N2
For Neutral CT (NCT)
Close to reset alarm Close to ON
(less than 2 m) (less than 10 m)
Power supply
RS1 RS2 513 P1 P2 98 S1 A1
Reset circuit Power circuit
P4 574 554 544 534 524 97 S2 A2
Short
FG
bar
(less than 2 m)
Control power circuit/ OCR Electronic operation
alarm contact alarm circuit
P.23 P.16
Accessory Symbols
SHT
Shunt tripping device
UVT UVT coil
LAX Auxiliary switch Standard
AL OCR alarm switch
SBC
Shorting b contact
CL Cell switch
Internal wiring
External wiring (userʼs wiring)
Control circuit connector (drawout type)
Power supply
D2 D1 C1 52 42
UVT SHT
Trip
Circuit
DT2 DT1 C2 51 41
Open to trip
Auxiliary switch
(normal close)
P.11,15,16
32 22 12 54 44 34 24 14
341 331
31 21 11 53 43 33 23 13 344 342 334 332
Cell switch
Auxiliary switch
Cell switch
(normal open)
P.17 P.17
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.
• 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.
321 311
324 322 314 312
10
P.19
31