Now available with self-testing capability, specification-grade combination switch/GFCI receptacle is UL listed, fully compliant with all latest UL 943 (4th edition) class A GFCI, UL 498 requirements and UL 508 for motor control switch horsepower rating. GFCI lock-out function protects from miswired line-load connections and GFCI circuitry damage. Compact design provides maximum wiring room in grounded box applications. Device and wallplate mounting screws are captive, speeding installation time.