Square D Schneider electric 8903LW1000V04 Electrically Held; 10 Pole; 30 Ampere; Resistive Current 30 Ampere ( An ampere is the unit used to measure electric current.) (Fluorescent Lighting), 20 Ampere ( An ampere is the unit used to measure electric current.) (Tungsten Lighting); Coil Electrical voltage 277 V (Volt) At (@) 60 (sixty) Hz; Nema -National Electrical Manufacturers Association (Nema rating) 4/4X; Nema -National Electrical Manufacturers Association (Nema rating) Construction Standard; Approval Ul, Csa; Square D[R Brand; 8903 Model . SQUARE D : LIGHTING CONTACTOR 600VAC 30A L