Advantages and functions

Fully automatic verification

Before every switch-on procedure and during operation a fully automatic verification is performed in order to check the correct supply conditions.

The classic “test button” is eliminated.

Error recognition

Measuring errors caused, for example, by the wearing of a glove when switching on are indicated by the signal unit flashing red. In this case, the PRCD-S+ from PCE gives a visual warning and does not switch on.

PE conductor stays closed

Failure situations like external voltage on the PE conductor or fault current above rated values cause a interruption of L and N. The PE conductor stays closed and keeps being monitored !

PE conductor advanced/delayed

The PE conductor circuit is switched on in advance and switched off with a delay.

Protection against surge

The integral surge voltage protection detects 400 VAC and 220 VDC and does not allow these to pass (a weak point occurs).

Protection against undervoltage

Undervoltage  will be recognized and the PRCD-S+ switches off.

Optical warning

The LED signal unit (red/green) visualizes error situations and offers a permanent status indication.

System error recognition

The PRCD-S+ recognises conductor interruptions or wiring errors from the source system.

handy – light – convenient

The PRCD-S+ from PCE is very handy and light weight, much simpler in comparison to an isolation transformer and cheaper in acquisition and usage.