Search FAQs
You are currently viewing the content available in Vietnam. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
What is the difference between QMB and QMJ fusible branch units?
Issue:
Product Design Features
Product Line:
QMB QMJ panelboards and switchboards
Resolution:
The QMJ switches are suitable for use with Class J fuses only.
The QMB switches as standard accept a Class H or K fuses for use on systems up to 10 kAIC and Class R fuses with a Class R fuse kit for use on systems up to 200 kAIC. Then many of the QMB switches can be modified to accommodate Class J fuses by moving the load base assembly to a location marked on the enclosure. Also, some of the QMJ switches will be in a smaller footprint enclosure.
Released for:Schneider Electric Vietnam
Explore more
Range:
Explore more
Range:
