Description 
  2.2 Circuit breakers and non-automatic circuit breakers 
3WA1 air circuit breaker 
Equipment Manual, 02/2023, 92310000002-06 
29 
2.2.2.2  Guide frame 
 
Locking provision to prevent racking of 
the withdrawable circuit breaker with 
the control cabinet door open (option) 
Locking provision to prevent opening of 
the control cabinet door when the 
circuit breaker is closed (option) 
Rated-current coding at factory 
Shutter lever (for opening the shutter 
during maintenance or inspection) 
Sliding contact for circuit breaker 
grounding (option) 
Equipment-dependent coding (option) 
Accessory label for guide frame 
Position signaling switch module 
(option) 
Locking provision for racking rails 
Sliding contact modules with attached 
push-in plugs