17
Close coil (52SRC)
The close coil (3AY1510) is a standard
component of the circuit breaker that is used
to unlatch the stored energy of the closing
spring and thus close the circuit breaker
electrically. It is available for either ac or dc
operation. After completion of a closing
operation, the close coil is de-energized
internally. If operated with ac voltage, a
rectifier is installed in the circuit breaker.
Trip coil (52T)
The trip coil (3AY1510) is a standard
component of the circuit breaker. The
electrically supplied tripping signal is passed
on to the trip-latching mechanism by means
of a direct action solenoid armature and the
circuit breaker is thus opened. It is available
for either ac or dc operation. After completion
of an opening operation, the trip coil is de-
energized internally. If operated with ac
voltage, a rectifier is installed in the circuit
breaker.
Figure 9: Use of manual spring-operation crank
50.5
50.0
55.0
53.0
54.0
50.0
50.6
50.5
Figure 10: Manual spring-charging crank
Item
Description
50.0
Hand crank
50.5
Manual spring-charging port
53.0
Close pushbutton
54.0
Open pushbutton
55.0
CHARGED/DISCHARGED indicator
Item
Description
50.0
Hand crank
50.5
Manual spring-charging port
50.6
Over-running coupling
Содержание 3AH35-SE Series
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