Siemens SENTRON 3WL10 - External Current Transformer for N Conductor, for 3-Pole Circuit Breakers Only; Tripped Signaling Switch Via Auxiliary Release (S25)

Circuit diagrams
10.1 Circuit diagrams of accessories
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
258 Manual, 10/2018, L1V30499596002-01
10.1.9
External current transformer for N conductor, for 3-pole circuit breakers only
3WL10 / 3VA27 SE + 3VA27 toggle
Note
In the 4
-pole circuit breaker, one internal N-conductor current transformer is always included.
10.1.10
Tripped signaling switch via auxiliary release (S25)
3VA27 toggle