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Top safety

Very high-speed cut-off

In the event of protections acting, typical cut-off time for ancillary MCB of 2ms in 2P.

Dual cut-off device

With exclusive energy storage for each device permitting ancillary MCB cut-off even without mains supply.

Preemptive cut-off in the event of mains failure

In the event of AC mains failure during more than 1 second, the ancillary MCB cuts off.

Real incremental self-testing of differential (residual current) protection

The unit carries out an automatic 'real incremental' test of the differential (residual current) protection prior to each reclosure. The operational validity of the toroidal, its wiring, amplification, filtering and detection must be checked.

Self-testing of RCD (residual current device)

The unit carries out an automatic test on the RCD every 5 seconds. The operational validity of the toroidal, its wiring, amplification, filtering and detection must be checked.

'Real incremental' Test of protections (overvoltage, differential (residual current) intensity, line intensity)

This type of test injects a real sinusoidal incremental value voltage or intensity which is added to the existing line measurement. Thus, when the alarm threshold is exceeded, this test generates an alarm / cut-off. In this way, one knows the exact protection and cut-off values.

Security code

The user's PIN constitutes a high level of security for the owner since it is the sole means whereby the programmed parameters can be validated. Any changes to programmed values only come into force once said PIN has been entered.

Cut-off / manual connection of the MCB

Manual connection with PIN.

Auto / manual mode

Programmable acoustic warnings