Issue:
Will all or any QO and/or HOM miniature circuit breakers accept copper-clad aluminum wires?
Product Line:
Miniature Circuit Breakers
Resolution:
In the US, yes. Per UL 489, miniature circuit breakers and wire connectors marked Al/Cu or Cu/Al may be used with copper, aluminum, and copper-clad aluminum conductors. Associated marking for conductor type and wire size will be on the face of the circuit breaker or the label above the lugs. In Canada and Mexico, construction with copper-clad aluminum (CCA) conductors is not allowed.
Will all or any QO and/or HOM miniature circuit breakers accept copper-clad aluminum wires?
Product Line:
Miniature Circuit Breakers
Resolution:
In the US, yes. Per UL 489, miniature circuit breakers and wire connectors marked Al/Cu or Cu/Al may be used with copper, aluminum, and copper-clad aluminum conductors. Associated marking for conductor type and wire size will be on the face of the circuit breaker or the label above the lugs. In Canada and Mexico, construction with copper-clad aluminum (CCA) conductors is not allowed.
Released for: Schneider Electric USA
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