Technical FAQs

Ask a Question

Is the undervoltage trip included with time delay units for Powerpact breakers?

Issue:
Is the UVR time delay units include the undervolage trip device?

Product Line:
Powerpact H, J, L, M, P and R frame molded case circuit breakers

Environment:
Products sold and used in the United States

Cause:
Need time delay for UVR - want to know if just time delay is needed, or time delay + undervoltage trip
 
Resolution:
The time delay units for Powerpact molded case circuit breakers, both adjustable and non-adjustable, do NOT include the undervoltage trip. Select the UVR separately to meet required control voltage for the circuit.

NOTE: For Powerpact H, J, L - Selecting the correct UVR when a Time Delay Unit is required
The output of the Time Delay Unit contains a large DC component, even when applied on an AC system.
This requires selecting a DC-rated UVR in lieu of an AC-rated UVR. Select as shown below



 
Was this helpful?
What can we do to improve the information ?