Technical FAQs

Ask a Question

In an I-Line panelboard using the HQO adapters for QO type breakers, is it possible to series rate the QO breakers in the HQO adapters for higher AIC ratings?

No. There have been no series rating tests done with the HQO type adapters. Series rating must be done with standard I-Line breakers which will series rate per charts on Digest 175 pages 9-2,3 etc.

CTA-ID : 2051667
Was this helpful?
What can we do to improve the information ?