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Ap LED

Auto-protection trip LED

Schneider Electric · Micrologic Control units 2.0 A, 5.0 A, 6.0 A, 7.0 A St

What does Ap LED mean?

This LED indicates the circuit breaker has tripped due to its internal auto-protection function, such as overheating or a short-circuit beyond its capacity.

Common Causes

  • The control unit has detected excessive temperature.
  • A short-circuit condition exceeds the circuit breaker's rated capacity.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Allow the unit to cool down if overheating is suspected.

  2. 2

    If the circuit breaker remains closed and the Ap LED stays on, contact support.

  3. 3

    Verify that the circuit breaker's rating is appropriate for the connected load.

  4. 4

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

Browse all codes in this manual (19)
Verified technical data. Last updated: April 2026

Related Faults

Arrow press to confirmConfirming and locking a new settingBattery low indicationBattery charge low indicationBattery test buttonBattery status check
Source: Micrologic Control units 2.0 A, 5.0 A, 6.0 A, 7.0 A St
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