Siemens SENTRON 3WA1 - Connection of the First Shunt Trip

Applications
3.4 Applications with closing coil and shunt trip
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
211
3.4.3 Connection of the first shunt trip
Operation of the first shunt trip of a circuit breaker is illustrated with and without the
"ready4COM" feature in the diagrams below.
When the S2 button is operated, the circuit breaker opens. If the circuit breaker has the
"ready4COM" feature and a communication module in addition, opening can also take
place via communication.
(A)
Circuit breaker with "ready4COM"
(B)
Circuit breaker without "ready4COM"