Class A rated GFCI|Auto-ground clip assures a positive ground to metal box|Thinner than competitor's GFCI receptacle, leaves more room for wires in the box|It also has our proven SafeLock protection feature, if critical components are damaged and protection is lost, power to the receptacle is disconnected|Feed-through wiring configuration allows GFCI to protect downstream receptacles|Prevents line load reversal miswire, no power to the face or downstream receptacles if wired incorrectly|Exceeds UL 943 voltage surge requirements, survives 100x the required UL 3-gang kA/6 kV voltage surge test cycles|Side or internal screw pressure plate back wire with 14 to 10 AWG solid or stranded copper wire|High Impact-resistant thermoplastic construction|Ground screw has back wire clamp for easy installation|10 kA short circuit rating, 102 to 132 VAC supply voltage range|Mounting screws are shipped captive in the device and wallplate for easier installation|Extra long strap, button colors match the device face|Trip-indicator light (red LED), two backwire holes per terminal|Dual direction test and reset buttons|Conducts an automatic test every three sec, ensuring it's always ready to protect, if the device fails the test, the indicator light flashes to signal that the GFCI should be replaced|5 +/- 1 m trip threshold, 0.025 sec trip time, 20 A feed-through capacity, 4 to 6 mA trip level, withstands 1500 VAC minimum dielectric voltage, terminals identified in accordance with UL498 (hot, white, green)|Nickel plated steel 8 to 32 terminal screw|95% maximum humidity, nylon face and body, 0.03 in brass contacts, galvanized steel mounting straps, thermoplastic tamper-resistant shutter