Siemens Murray SS102AX Meter Socket, 1 -Phase, 200 A, 300 V, 4 -Jaw, Overhead Cable Entry, NEMA 3R EnclosureSingle phase, 3 wire, 4 jaw, 600 V maximum. Jaws fabricated from high conductivity, tin plated, copper alloy. Insulating jaw support blocks of high impact, non tracking thermoset polyester. Galvanized steel enclosure. Safety guides reduce chances of accidental contact and aligns meter in sock. Uses RX style hub (not included). Provision for 5th jaw, no bypass. UL listed. Unit: EA UPC: 040892308921 Model Number: SS102AX