Functions
4.1 Protection functions
3VL IEC molded case circuit breakers
System Manual, 11/2013, 110 0110 - 02 DS 03
47
● Every RCD module requires a separate cable for remote tripping. It is not possible to use
one cable and connect two or more RCD modules in parallel. It is possible to use two or
more switches in parallel for remote tripping of an RCD module.
● Use an unshielded or shielded twisted-pair cable with a maximum capacitance of 36 nF
as well as a maximum resistance of 50 Ohms (total length = out and back).
● With a shielded cable, the shield must not be applied to the PE conductor of the system.
● A separate conductor must connect terminal X13.2 with the ground busbar (E or PE).
This connection is recommended for the prevention of electrostatic charge on the remote
tripping cable. This applies in particular when long cables (> 10 m) are used. If this is not
the case, the remote tripping cable is isolated.
Figure 4-2 RCD module for VL160
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