Short-time or instantaneous trip LED

What does Isd/Ii LED mean?

This LED signals a trip caused by exceeding the short-time pickup (Isd) or instantaneous pickup (Ii) settings.

• A sudden surge of current has exceeded the short-time or instantaneous trip settings.

Click steps to track your progress.

1. 1

   Investigate the cause of the short-circuit or sudden high current draw.

2. 2

   Ensure the short-time and instantaneous trip settings are correctly configured.

3. 3

   Reset the fault indication by pressing the fault-trip reset button.