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Les langues disponibles
GB
ation and cannot be switched on if a fault is recognized.
As soon as a fault occurs (e.g. ground wire breakage), the
PRCD-S switches off automatically.
This increases the level of protection against dangerous
shock currents.
The PRCD-S will not switch off if external voltage is applied
to the ground wire, e.g. due to drilling into an external
wire.
Due to the fact that the PRCD-S does not switch off, the
upstream protective device can activate and interrupt the
circuit.
The device is designed to recognize
• alternate fault currents
• pulsating direct fault currents
• phase-controlled fault currents
The PRCD-S has the following functions
• residual current device (DI)
• ground wire identification (testing before operation)
• ground wire monitoring (testing during operation)
• undervoltage release
• detection of mains voltage on the ground wire while
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switching on*
• maintaining the ground wire function in case of external
voltage on the ground wire during operation
Fault detection – the PRCD-S detects and protects in case
of the following system errors
• N-wire interrupted
• detection of mains voltage on the ground wire while
switching on*
• missing PE-wire
• maintaining the ground wire function in case of external
voltage on the ground wire during operation
• Phase L and PE-wire reversed
• Phase L and PEN-wire reversed
• PE-wire live
• PEN-wire live
• rated residual currents 10 mA or 30 mA
(depending upon design)
• power outage / power interruption
* Follow the instructions under Switching ON procedure.
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