Ge's Circuit Breaker Enclosures Are Ul Listed, Csa Certified And Are Suitable For Use As Service Equipment (except As Noted). The Short Circuit Rating Of The Enclosure/circuit Breaker Combination Is Equal To The Short Circuit Rating Of Theinstalled Circuit Breaker. Spectraî Rms Circuit Breakers Are Suitable For Use On Ac Systems Only. Enclosure Notes And/or Limitation: For 3 Phase, 4-wire Ground Fault, Order Neutral Kit And Neutral Current Sensor Kit (kits