Siemens 3VA1 100 A Manual page 318

Accessories
4.8 Residual current devices
Use of the residual current device as a pure display unit
The RCD310 and RCD510 residual current devices can also operate as pure display units
without a tripping function, i.e. they detect and signal residual currents, but do not trip the
molded case circuit breaker or switch disconnector nor interrupt the circuit.
To operate the RCD310 or RCD510 as a pure display unit, the residual current release
(RCR) and its connecting cable are simply not installed. The residual current device can
perform all its normal functions, e.g. status signaling, in "display mode."
Note
Because the RCR and its connecting cable have not been installed, the LED "ACT" flashes
continuously.
Function overview
The table below provides an overview of all the functions and data which are available in the
residual current device environment:
318
Value can be read
Value can be edited
Commands
3VA molded case circuit breakers
Manual, 04/2015, A5E03603177010-02