Newmar SS Switch - 7.5 AC Selector Switch [SS SWITCH7.5]SS Switch 7. 5 AC Selector Switch This AC source selector switch is an essential item for any vessel with an onboard AC generator and or inverter. By isolating power source inputs, the switch eliminates the safety hazard and or damage that can occur if two AC sources are applied to the same circuit simultaneously. The switch is fitted with a compact escutcheon plate with engraved switch position nomenclature. The switches carry cUL approval, are CE