Siemens 3VA1 100 A Manual page 311

External control of the residual current release (RCR)
MCCB-TRIP
Although the RCR is utilized by the residual current device, it can also be accessed
externally via a floating contact by means of the auxiliary contact MCCB-TRIP. The floating
contact must be capable of switching a 5 mA current with a voltage supply of 24 V DC.
The RCR functions as a shunt trip, allowing the circuit breaker to be tripped by remote
control. External tripping of the molded case circuit breaker or switch disconnector via the
RCR does not affect the residual current device. In other words, neither the "tripped" display
on the residual current device nor the auxiliary contacts for the "tripped" signal are activated
in the event of an external trip.
It is not possible, however, to connect the contacts named above of several residual current
devices in parallel.
3VA molded case circuit breakers
Manual, 04/2015, A5E03603177010-02
Accessories
4.8 Residual current devices
311