Screw Base Heaters | McMaster-Carr

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9 Products

Bulb Socket Electric Space Heaters

Screw these heaters into a light bulb socket in lockers, cabinets, and enclosures. They protect equipment from low temperatures and condensation.

					Overall		Base
	Heat Output, BTU/hr	Max. Space Heated @ Temp. Change	Wattage, W	Current, amp	Ht.	Dia.	Type	Dia.	Heating Element Material		Each
120V AC







				Enclosure Mount

				100	20 cu. ft. @ 10° F 10 cu. ft. @ 20° F 7 cu. ft. @ 30° F 5 cu. ft. @ 40° F	50	0.4	4 3/4"	1 3/8"	Medium	1 1/16"	Ceramic	1900K11	0000000


				200	30 cu. ft. @ 10° F 10 cu. ft. @ 20° F 10 cu. ft. @ 30° F 8 cu. ft. @ 40° F	70	0.6	4 3/4"	1 3/8"	Medium	1 1/16"	Ceramic	1900K12	000000
				300	40 cu. ft. @ 10° F 20 cu. ft. @ 20° F 10 cu. ft. @ 30° F 10 cu. ft. @ 40° F	100	0.8	4 3/4"	1 3/8"	Medium	1 1/16"	Ceramic	1900K14	000000
				500	60 cu. ft. @ 10° F 30 cu. ft. @ 20° F 20 cu. ft. @ 30° F 10 cu. ft. @ 40° F	150	1.3	4 3/4"	1 3/8"	Medium	1 1/16"	Ceramic	1900K15	000000
				600	90 cu. ft. @ 10° F 40 cu. ft. @ 20° F 30 cu. ft. @ 30° F 20 cu. ft. @ 40° F	200	1.7	4 3/4"	1 3/8"	Medium	1 1/16"	Ceramic	1900K16	000000

Heat Lamp Bulbs


R40 Bulb Shape	BR40 Bulb Shape	PAR38 Bulb Shape

Keep food warm, speed up drying, or make chilly workstations comfortable. These bulbs radiate infrared heat that penetrates and warms the surfaces they shine on. The higher the wattage, the more warmth they give.

Shatter-Resistant Plastic-Coated Glass Bulb—A plastic coating helps contain glass shards if the bulb breaks.

BR40 Bulb Shape and R40 Bulb Shape—Cast a wide beam to warm large surfaces. They’re often used in hanging heat lamps and other large fixtures. These bulbs are made of blown glass.

PAR38 Bulb Shape—A narrow beam focuses heat on a small area. These bulbs are made of thick, hardened glass for added durability.

	Food Industry Std.	Bulb Dia.	Overall Lg.	Voltage, V AC		Each
Shatter-Resistant Plastic-Coated Glass Bulb







	R40 Bulb Shape—Medium-(Standard Household) Base (1 1/16" Diameter)

	250	Red	No	NSF/ANSI 4	5"	6 1/2"	120	1547K15	000000




			BR40 Bulb Shape—Medium-(Standard Household) Base (1 1/16" Diameter)

			125	Clear	No	NSF/ANSI 2	5"	6 1/2"	120	2300K11	00000


			250	Clear	No	NSF/ANSI 2	5"	6 1/2"	120	2300K13	00000




					PAR38 Bulb Shape—Medium-(Standard Household) Base (1 1/16" Diameter)

					175	Clear	No	NSF/ANSI 2	4 3/4"	5 3/8"	120	1532K691	00000