3VA Motor Operator

The motor operator MO320 accepts commands via electrical control cables to open and close the molded case circuit breaker.

The source of commands transmitted via electrical control cables can be a pushbutton or a PLC, for example. Motor operators must also be used in conjunction with automatic transfer control devices.

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MANUAL, AUTO and LOCK modes:
The motor operator MO320 is switched to MANUAL mode when the plastic window is opened or AUTO mode when the plastic window is closed.

MANUAL:
When the plastic window is open, the motor operator MO320 is in MANUAL mode. The motor operator is moved to position ON (I) or OFF (O) by manual operation of the handle.

AUTO:
When the plastic window is closed, the motor operator MO320 is in AUTO mode. The motor operator can be operated via electrical signals issued by a pushbutton or by control commands output by a PLC.

LOCK:
The motor operator can be locked in the OFF (O) position to prevent reclosing of the breaker. The padlock device snaps out if the slide above it is moved to the "LOCK" position.

Connection diagram for control of the motor operator MO320
 

Motor operator MO320 Technical Data