DOCA0160EN-00

Alarm Detection

The alarm threshold >I2 corresponds to an earth-leakage current that is out of the normal condition for the installation.

An alarm is active when the measured earth-leakage current is greater than the set alarm threshold >I2 for a period of time greater than the set alarm time delay ton2 (in milliseconds or seconds).

When an alarm is active:

  • K1 and K2 relays are activated

  • PRE-AL and ALARM LEDs are switched on

  • the value of earth-leakage current blinks on the LCD display

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