Can HOM and QO CAFI breakers be used on 208Y/120 systems?
Issue:
Can CAFI breakers be used on 208V systems?
Product Line:
Circuit Breakers
Resolution:
1-pole QO and HOM breakers with CAFI or DF suffix are approved for use on the following:
2-pole QO and HOM breakers with CAFI suffix are approved for use on the following:
NOTE: There is not a standard to test or validate 2-pole CAFI breaker on 208 V systems. Therefore, 2 pole CAFI breakers are NOT for use on 208Y/120 Vac systems, as indicated by the label on the front face of 2p CAFI breakers and on the packaging.
Can CAFI breakers be used on 208V systems?
Product Line:
Circuit Breakers
Resolution:
1-pole QO and HOM breakers with CAFI or DF suffix are approved for use on the following:
- 120/240Vac 1Ø3W system
- 208Y/120Vac 3Ø4W system
2-pole QO and HOM breakers with CAFI suffix are approved for use on the following:
- 120/240Vac 1Ø3W system
NOTE: There is not a standard to test or validate 2-pole CAFI breaker on 208 V systems. Therefore, 2 pole CAFI breakers are NOT for use on 208Y/120 Vac systems, as indicated by the label on the front face of 2p CAFI breakers and on the packaging.
Released for: Schneider Electric Canada
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