Shore power/Inverter selector switch Shore power / Inverter selector switch with lockout slide to insure that no 2 AC sources are connected at the same time. 30 Amp/30 Amp Dual circuit breaker selector switches . A Series breakers by Blue Seas (Carling). Red reverse polarity LED indicators. Green LED light to indicate shore power or inverter run. Shore power/Generator/Reverse polarity stickers are included. Very attractive brushed aluminum face. Panel Hand crafted and wired in the USA.