AC Horsepower Ratings HP Rating: 1HP-120V 2HP-240V Max. Amperage: 16 Amp^^Electrical Specifications Amperage: 20 Amp Voltage: 120/277 VAC Grounding: Self-Grounding Dielectric Voltage: Withstands 1500V for 1 minute Overload UL20 Test: 100 cycles of OL at 4.8 times rated current Temperature Rise: Maximum 30??C rise Endurance: 50,000 cycles minimum^^Environmental Specifications Flammability: Rated V-2 per UL94 Operating Temperature: -40??C to 65??C^^Material Specifications Strap Material: .048" Thick Galvanized Steel Base Material: Thermoplastic Toggle: Polycarbonate Cover Material: Thermoplastic Contact Material: Silver Alloy Terminal Screws: Brass 8-32 Grounding Screw: Brass 8-32 Ground Clips: Brass Color: Brown Wallplate Not Included^^Mechanical Specifications Terminal ID: Brass-Hot Black-Hot White-Neutral Green-Gnd Terminal Accom.: 14-#10 AWG back wired; #14-#12 AWG side wired Product ID: Ratings are permanently marked on device Torque Range: 12-14 inch pounds^^Standards and Certifications NEMA: WD-1 & WD-6 ANSI: C-73 UL Fed Spec WS896E: File #E7458 UL Standard: UL 20 CSA C22.2 No. 111: File #152105 NOM: 057 RoHS: Compliant Warranty: 10 Year Limited