Accessories   
4.6 Motor operators 
  3VA molded case circuit breakers with IEC certificate 
334  Manual, 03/2019, A5E03603177010-03 
 
MANUAL, AUTO and LOCK modes 
The MO310 side mounted motor operator is switched to MANUAL or AUTO mode when the 
plastic cover is opened (MANUAL) or closed (AUTO). 
 
When the plastic cover is open, the MO310 side mounted motor operator is in MANUAL 
mode. The switchstick on the front panel can be operated to move the molded case circuit 
breaker to the ON (I) or OFF (O) position. 
If the plastic cover is closed, the MO310 side mounted motor operator is operated via control 
cables, e.g. via pushbuttons or a PLC.