Can QO load centers be used for Corner Grounded Delta(or Grounded-B phase Delta) 240Vac, 3ph-3w applications?
Issue:
Product features
Product Line:
QO load centers
Environment:
Voltage system applications
Cause:
Application
Resolution:
Yes, convertible Main Lug Only (MLO) load centers are suitable for this application, but the short circuit rating is limited to 5,000 AIR. Only two-pole QO-H branch breakers, rated 240Vac may be used. The MLO cannot be converted to a Main Breaker panel and maintain the rating. Main Breaker load centers are not suitable for the application. Please refer to the Technical Information pages of Catalog Section 1100CT9901 for further information.
Product features
Product Line:
QO load centers
Environment:
Voltage system applications
Cause:
Application
Resolution:
Yes, convertible Main Lug Only (MLO) load centers are suitable for this application, but the short circuit rating is limited to 5,000 AIR. Only two-pole QO-H branch breakers, rated 240Vac may be used. The MLO cannot be converted to a Main Breaker panel and maintain the rating. Main Breaker load centers are not suitable for the application. Please refer to the Technical Information pages of Catalog Section 1100CT9901 for further information.
Released for: Schneider Electric USA
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