Leviton Pin Sleeve Non-Fused Mechanical Interlock Power Switch Panel 20A 520MI7W
Part Number: 520MI7W. The switch cannot be actuated to the ON position until an IEC compatible plug is fully inserted, and the plug cannot be removed until the switch is in the OFF position. IEC 309, 4-pole, 5-wire, grounding, rated 20A 277/480V 3 Phase Y. Features include.