Electrical Specifications Amperage: 20 Amp Voltage: 120/277 VAC Dielectric Voltage: Withstands 1500V for 1 minute Overload UL20 Test: 100 cycles of OL at 4.8 times rated current Temperature Rise: Maximum 30ºC rise Endurance: 50,000 cycles minimum AC Horsepower Ratings: 1HP-120V, 2HP-240V, 16A Max^^Environmental Specifications Flammability: Rated HB or better UL94 Operating Temperature: -40ºC to 65ºC Storage Temperature: -40ºC to 65ºC^^Material Specifications Base Material: Thermoplastic Cover Material: Thermoplastic Strap Material: Galvanized Steel Toggle: Antimicrobial Urea Contacts: Silver-Alloy Terminal Screws: Brass 8-32 Grounding Screw: Steel 8-32 Ground Clips: Brass^^Mechanical Specifications Terminal Accom.: 14-#10 AWG back wired; #14-#12 AWG side wired Terminal ID: Brass-Hot Black-Hot White-Neutral Green-Ground Product ID: Ratings are permanently marked on device^^Standards and Certifications NEMA: WD-1 & WD-6 UL Fed Spec WS896E: File #E7458 UL Standard: UL 20 CSA C22.2 No. 111: File #152105 NOM: NOM-ANCE JIS Z 2801:2000: Test for Antimicrobial Activity and Efficacy ISO 22196: Measurement of Antibacterial Activity on Plastics and Other Non-Porous Surfaces