Locking And Interlocking - Siemens SENTRON 3WL10 Series Manual

Accessories
3.4 External accessories
Summation current transformer Rc CT
Residual currents of 3 A to 30 A can be measured with a summation current transformer and
evaluated by the electronic trip unit of the 6-series, which is equipped with a rating plug for
residual current protection and the metering function MF Advanced. The transformer is
connected to the auxiliary conductor terminal system of the circuit breaker.
T7
3.4.4

Locking and interlocking

Covers and locking devices to prevent mechanical operations at the operator panel
①
Protective covers to prevent unintended mechanical operation
②
Locking device, OFF position, Ronis lock
③
Padlockable protective cover ON/OF
④
Locking device, OFF position, for padlocking
92
Summation current transformer
Air circuit breaker 3WL10
Manual, 11/2017, L1V30499596002-01