Technical FAQs

Ask a Question

What type of fuses can be used in the QMB225WT3, QMB325WT3, QMB326WT3 and QMB327WT3 switches?

Issue:
Selection.

Product Line:
Panelboards.

Environment:
QMB Switches

Cause:
Fuse selection

Resolution:
These QMB switches will accept ONLY 300Vac Class T fuses.
By definition a Class T fuse is a fast acting, current limiting fuse that is rated to interrupt a minimum of 200,00 Amps.
Class T fuses are offered in 300V AC and 600V AC versions, with Ampere ratings range from 1 to 800 Amps. They have a small footprint, roughly a 1/3 the size of Class R fuses.
Class T Fuses are UL Listed under UL248-15, Class T and CSA Certified.
 
Was this helpful?
What can we do to improve the information ?