RELAY RECEPTACLE TYPE; R4222/R8222/R4228/R8228 SWITCHING RELAY USED ON; TRADELINE[R] BRAND; APPROVAL UL, CSA, CE; INCLUDES RELAY RECEPTACLE, COVER, (8) LEAD WIRES; PLATE SIZE 4 INCH X 4 INCH; CONTACT RATING 120/208/240/277/480 VAC; NUMBER OF POLES 1/2