Mitsubishi Electric AE-SW Series Instruction Manual page 17

Electrical operation
< Closing >
Remote closing can be made by emerging the closing coil (CC).
Apply the rated voltage to the control terminals A1 , A2 , and
the breaker closes.
The unit comprises an unti-pumping circuit which allows only
one action without first de-energizing then re-energizing.
To re-close the breaker, once turn off power (between A1 and
A2 ) to the closing coil, and re-apply the rated voltage to them.
When the breaker has an under-voltage trip device (UVT), the
breaker cannot be closed if power is not applied. (After power is
applied to the UVT, it takes a waiting time of 1.5 sec until the
breaker can be closed.)
< Opening >
The use of a shunt trip device (SHT) or an under-voltage trip
device (UVT) enables to electrically trip the breaker.
When an SHT is used, apply the rated voltage to C1 and C2 on
the control circuit terminal block.
When a UVT is used, open the trip terminals DT1 and DT2 on
the control circuit terminal block. (A short-circuiting bar has been
fitted before shipment. Remove the bar before using the termi-
nals.)
Or turn off an applied voltage to D1 and D2 .
UVT circuit diagram (for 100-120 V AC, 200-240 V AC or
DC voltage)
D1
D2
DT1
Push button
for tripping
DT2
Min 0.2s
Max. 2m
Note: Use a pushbutton for tripping having power ratings of
150 V DC and 0.5 A or more.
Fig. 17-3
UVT
controller
UVT
coil
Air circuit breaker
Control supply
Air circuit breaker
Min. 80ms
A1
Power supply
A2
Note: 24 to 48 V DC does not have rectifier circuit.
Fig. 17-1
SHT circuit diagram
Air circuit breaker
Min. 40ms
C1
Power supply
C2
Note: 24 to 48 V DC does not have rectifier
circuit.
Fig. 17-2
UVT circuit diagram (for 380-460 V AC)
IN1 OUT3 D1
External
unit
IN2 OUT4 D2
DT1
Push button
for tripping
DT2
Min 0.2s
Max. 2m
Note: Use a pushbutton for tripping having power ratings of
150 V DC and 0.5 A or more.
The external transformer dedicated for AE-SW is used.
Only one UVT controller can be connected to one
external unit.
Fig. 17-4
CC Unit
CC
One pulse
circuit
Cut-off
switch
SHT unit
SHT
UVT
controller
UVT
coil
Air circuit breaker
E − 17