High Bay HB3/HB4 Series

HB3/HB4 High-Temperature High Bay

Industrial High Temperature Lights

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Key Features

UL 844 Class I Division 2 Groups A, B, C, D; Class II Division 2 Groups F, G; Class III; UL 1598
Rated for ambient temperatures up to 100°C (212°F), with the T-code listed per model and ambient band
HB3 90–150 W (9,900–16,500 lm) and HB4 150–300 W (16,500–33,000 lm) at 110 lm/W, 120 VAC or 277 VAC
IP66, NEMA Type 4X, 3G vibration, clear flat glass; ceiling and wall mounts included

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Product Description

Two sizes cover most mounting heights: the HB3 at 90, 100, 120 or 150 W and the HB4 at 150, 200, 240 or 300 W, both at 110 lm/W with a 120° beam and CRI above 70. Colour temperatures run from 1700K to 7500K, with blue and green options for specialty areas. Input is 120 VAC or 277 VAC, 50/60 Hz, with a power factor above 0.95.

The fixture is listed to UL 844 for Class I Division 2 Groups A, B, C and D, Class II Division 2 Groups F and G, and Class III, and to UL 1598. The ambient range starts at -40°C and reaches +100°C on the lower wattages, with the temperature code for each model and ambient band tabulated in the spec sheet. The enclosure is NEMA Type 4X and IP66, rated IK08 (IK10 with the glass wire guard), 3G vibration and 500 hours salt spray.

Ceiling and wall mounts are included and a pendant mount is available separately; cable entry is 3/4" NPT. The fixture carries a 5-year limited warranty. For the full electrical, photometric and mechanical specifications, dimensions, packing data and ordering codes, download the spec sheet linked above.

Technical Specifications

Full electrical, optical, mechanical, and ambient-temperature specifications, including IP rating, mounting options, color-temperature range, and certifications, are in the spec sheet.

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