Technical FAQs

Ask a Question

What is the voltage threshold for shunt trips for FA, KA, and LA breakers?

Product Line:
Circuit Breakers

Environment:
Legacy Thermal-Magnetic Circuit Breakers

Resolution:

The 120 Vac shunt trip (1021) threshold is 55% of the rated voltage.
For all others, the threshold is 75% of the rated voltage.
Was this helpful?
What can we do to improve the information ?