Shore Main Circuit Breakers and Reverse Polarity Trip Coil , Amperage: 30 amps, Poles: Triple Pole , Shore main AC circuit breaker for Paneltronics electrical distribution panels. 120VAC 60Hz (simultaneously breaks both hot and neutral legs) , 220VAC 50Hz (simultaneously breaks both live and neutral legs) , Reverse Polarity Protector 65VAC trip coil (Surge arrestor P/N 281-001 required) (ABYC E-11.6.3.3.1), Smart Breaker: Trips automatically upon sensing reverse polarity. .