Square D 
Enclosde Electrically Held Lighting Contactor
8903SQG2V02
100 Amp Rated
3 Pole
3 Wire
120 Volt AC 60Hz / 110 Volt AC 50Hz Coil Cat# 31074-400-38
Tungsten Lamp 277/480 Volt
Ballast Lamp 347/600 Volt
Resistance Heating 600 Volt
NEMA 1 Enclosure
New Surplus

(Loc: EE-3E5)