Circuit diagrams 
  10.1 Circuit diagrams of accessories 
3VA27 molded case circuit breakers & 3WL10 air circuit breakers 
Manual, 10/2018, L1V30499596002-01 
257 
 
External I/O module IOM300 
3WL10 / 3VA27 SE + 3VA27 toggle 
 
 
*)  
Connection on the Breaker Connect module or optionally directly on the auxiliary conductor 
terminal system via the auxiliary conductor terminal