Mitsubishi Electric C Series Handling And Maintenance page 68

Moulded case circuit breakers, earth leakage circuit breakers, earth leakage relays & circuit protectors
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(iv) Mount the electric operation unit on the circuit-breaker.
Attaching screws are four M6 screws, The electric op-
eration unit has been so designed that it can be provi-
sionally supported by hook pin when it is to be fastened
with screws.
(v) Wire the electric operation unit to the control circuit.
Mount the terminal cover after the wiring.
Mounting the flush plate type
(i) Detach the cover mounting screws of the electric operation unit.
(ii) Detach the electric operation unit from the circuit-breaker.
(iii) Mount the circuit-breaker on the board. The mounting method on
the board is the same as that for the rear-connection type circuit-
breaker.
(iv) Wire the circuit-breaker with its internal accessory. Refer to the
above-mentioned mounting method for the rear-connection type.
(v) Mount the electric operation unit on the circuit-breaker after re-
moving the cover of the electric operation unit.
(vi) Connect the electric operation unit to the control circuit. Mount
the terminal cover after wiring.
(vii) Mount the cover of the electric operation unit after fitting the panel
to be supplied by user.
• Operational Circuit
Such wiring as shown by the broken line will be added for the automatic resetting type.
Internal wiring (breaker OFF state)
LS3
LS2
Y
CC
M
X
Y
LS1
Y
X
X
S4
P2
P1
S2
( DC– )
ON
OFF
RESET
Noise Filter
※ Automatic reset type require the additional wiring shown by dotted lines.
Control
power
supply
CC
:Closing coil
Y
:Pumping prevention relay
X
:Self holding relay
:Motor
M
LS1
:Limit switch linked with a cam
LS2
:Limit switch linked with a cam
LS3
:Limit switch linked with OFF lock plate
Alarm switch
(a contact)
for automatic
reset
66

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