Accessories
4.6 Motor operators
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
341
4.6.2.1
MANUAL, AUTO and LOCK modes
The motor operator MO320 is switched to MANUAL or AUTO mode when the plastic window
is opened (MANUAL) or closed (AUTO).
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 control cables, e.g. in response to 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 reclosure of the
breaker. The padlock locking device snaps out if the slide above it is moved to the "LOCK"
position.
Up to three padlocks with a shackle diameter of between 5 and 8 mm can be inserted
through the openings in the padlock locking unit. Padlocks are not included in the scope of
supply.
