MARRETTEĀ® 2-wire push-in luminaire disconnect. It enables electricians changing ballasts to easily disconnect incoming power for safe servicing without having to trip the main power breaker. Foolproof design eliminates the potential for incorrect installation and reverse polarity. Fits through 1/2 inch knockouts for easy retrofit. Ballast hot-lead wire entry is colour-coded black for easy visibility. For use in all non-residential fluorescent lighting applications and in ordinary location HID lighting applications, both up to 600 V, 4 A maximum. Sold in mated pairs (male/line and female/load sides). Contractor pack.