Accessories
4.8 Residual current devices
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
467
4. Insert the other end of the connecting cable into the interface <X3 RCD> on the ETU.
The RCD-to-ETU connecting cable is free of silicone and halogen and is electrically isolated
from the main circuits.
The connecting cable is included in the scope of supply.
The residual current device utilizes the maglatch of the electronic trip unit (ETU) in order to
trip the molded case circuit breaker. It therefore needs to be connected to the ETU of the
molded case circuit breaker. This connection is made by means of the RCD-ETU connecting
cable.