The Newmar SS-7.5INV AC Source Selector Switch eliminates the safety hazard and/or damage that can occur if two AC sources are applied to the same circuit simultaneously. The SS-7.5INV is fitted with a compact escutcheon plate with engraved switch position nomenclature and carry UL and CSA approval. The SS-7.5INV is CE marked and features heavy duty contacts and a positive step cam mechanism for low resistance contact closure. Stay safe with the SS-7.5INV.