Appleton Electric Explosionproof Fluorescent Fixture ASL238-277

52-7/16 INCH 15 INCH 8-3/4 INCH 50 DEG F MIN. STARTING TEMPERATURE 3/4 INCH HUB SIZE 6 HUB(S) CEILING MOUNTING CLASS P BALLAST TYPE CLASS I DIV 1 AND 2 GROUP C D, CLASS II DIV 1 AND 2 GROUP E F G, CLASS III ENCLOSURE 2 LAMP(S) T12, INSTANT START, SLIMLINE LAMP TYPE 40 W LAMP WATTAGE COPPER FREE ALUMINUM ALLOY HOUSING MATERIAL GRAY EPOXY COATED HOUSING FINISH .75 HUB SIZE IN INCH 277 V BALLAST/LINE VOLTAGE 3/4 HUB SIZE - FRACTIONAL WHITE BAKED ENAMEL INSIDE GRAY EPOXY OUTSIDE FINISH COPPER FREE ALUMINUM ALLOY REFLECTOR TYPE SINGLE PIN LAMP BASE APPLETON[R] BRAND APPLICABLE STANDARD NEC 516-3 (C) HUB SIZE IN INCH - UOM IN ASL MODEL