Siemens SUAT417-XG Ringless Meter Socket, 4 -Jaw, Single phase, 200 AmpSingle 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 and closure plate included, no bypass. UL listed. Ringless type Single phase 3 wire 4 jaw 600 V maximum