Accessories
4.8 Residual current devices
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
413
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 and therefore do not interrupt the circuit.
To operate the RCD310 or RCD510 purely as a display unit, the residual current release
(RCR) and its connecting cable are not installed. The residual current device can perform all
its normal functions, e.g. status signaling, in "display mode."
Because the RCR and its connecting cable have not been installed, the LED "ACT" flashes
continuously.
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