Siemens SENTRON 3WL10 Series Manual page 143

such as the operator, the contact system, the current conducting paths, the arc chute, and
the electronics, for safety reasons, too.
1. Remove the front cover and the terminal covers of the circuit breaker to install internal
accessories.
3-pole circuit breaker:
4-pole circuit breaker:
Air circuit breaker 3WL10
Manual, 11/2017, L1V30499596002-01
Connection and commissioning
5.2 Mounting and connection
141