15 amp GFCI with auto-monitoring function. Matching wall plate included. Parameter Input voltage: 120 vac frequency: 60 Hz front receptacle current @ 120 vac nominal: 15 amp pass through current @ 120 vac nominal: 20 amp trip fault current @ 120 vac: Min: 4 ma; Max: 6 ma trip time: 0.025 seconds auto-monitoring function test power-up test interval: 3 seconds auto-monitoring function test repeat test interval: 90 minutes auto-monitoring fault test detection and eof LED flash rate: 1 Hz material requirements front receptacle (enclosure) color: white back enclosure color: Gray end of life indicator: high brightness red LED ksl-2551hr-front cover: r/c plastics, Lexan 241R (sabic innovative plastics - E207780) mounting yoke: nickel or zinc plated steel, 1.2 mm thick Grounding terminal: plated steel hot wire screw: nickel plate steel screw pressure plate: brass 11.5 x 12 x 1 mm rear cover: r/c plastics, nominal thickness 1.16 mm fastening screw: (4) nickel plated steel reset button: r/c plastics, Lexan 241R (sabic innovative plastics - E207780) test button: r/c plastics, Lexan 241R (sabic innovative plastics - E207780) wire braid (line): copper braided wire neutral wire screw: nickel plated steel Fairchild GFCI ic's: fan4149 & fan4150 printed Wiring board: r/c pwb (Zpmv2), fr-4, 94-v0, rated 130ºc application requirements UL 943 & cUL 943 (meets 2015 requirements): class a GFCI accepted terminal wire size: 12 to 14 gauge Wiring type: rear pressure plate and side Wiring flammability: rated v-2 per UL 94 operating temperature: -35 to 66 Celsius operating humidity: 30-95% product marking requirements UL marking and labels: labels and markings as required by UL file # E320934 gp brand markings: gp logo, debossed, in center of back housing. 8mm date code marking: on each individual product, date code schema ("mmddyygg").