Meets or exceeds all latest UL943 (3rd edition) Class A GFCI, UL498 requirements and UL508 for motor control switch horsepower rating.Reset button lock-out function protects from miswired line-load connections and GFCI circuitry damage due to disabling voltage surge spikes. Indicator light provides quick visual reference of a tripped condition. Ground screw backwiring clamp for fast, secure termination. Rated as 1-1/2 HP motor control switch. 20 amp feed-through rating allows full protection of downstream receptacles whenwired from load side. 8 separate backwiring holes accept up to #10 AWG stranded wire, for maximum flexibility. Durable, impact-resistant thermoplastic construction. Line terminal screws are backed out, staked, ready to wire; load side terminals torqued down for increased prevention of miswiring. Device and wallplate mounting screws are captive, speeding installation time. Low overall dimensions makes for more room to wire in crowded box situations. Longest possible mounting strap helps assure secure, easy mounting. Color-matched and recessed Test & Reset buttons provide uniform appearance. Matching thermoplastic wallplate included.