TEY250 MOLDED CASE, THERMAL MAGNETIC TYPE; 2 INCH W X 3 1/16 INCH D X 5 1/4 INCH H SIZE; 277 V MAX. AC VOLTAGE RATING; 250 V MAX. DC VOLTAGE RATING; UL APPROVAL; 240/277 VAC, 480 VAC STAR/277 VAC, 250 VDC VOLTAGE RATING; 65 KILOAMPERE AT 240 VAC, 14 KILOAMPERE AT 277 VAC, 14 KILOAMPERE AT 480 VAC STAR/277 VAC, 10 KILOAMPERE AT 250 VDC INTERRUPTING RATING; 50 AMPERE CURRENT RATING; 2 POLE(S); ALUMINUM/COPPER WIRE TERMINAL TYPE; TEY MODEL