Hazardous Location LED High Bay 150 Watt 20700 Lumens 80+ CRI Class 1 Division 2 Approval IP66 Rating 110 Degree Beam Angle Corrosion Resistant Shatterproof Tempered Glass Lens 120-277V

What types of sites specify a Class I, Division 2 hazardous location high bay?

Class I, Division 2 luminaires are specified where flammable gases or vapors are not normally present in an ignitable concentration, but may occur under abnormal conditions such as equipment upset, ventilation failure, or maintenance activity. Typical applications include fuel handling support areas, chemical process support zones, solvent storage rooms, paint and coating prep areas, and certain industrial utility spaces when the site classification requires C1D2 equipment.

What does the T4 temperature code support in a hazardous area lighting design?

T4 indicates the luminaire is rated so its maximum external surface temperature stays within the T4 limit under rated conditions. This parameter is used to reduce ignition risk by keeping surface temperatures below the autoignition threshold requirements associated with the classified materials identified for the area. Site classification and material data should be confirmed by the engineer of record.

What does 20,700 lumens at 150W translate to in efficacy?

The fixture produces 20,700 lumens at 150W, which calculates to 138.0 lm/W. Maintained workplane levels depend on mounting height, spacing, room geometry, and surface reflectances.

How does a 110° beam angle influence spacing and uniformity?

A 110° distribution provides controlled coverage compared to ultra-wide optics. In high-bay layouts, it supports more defined light placement over work areas and can reduce spill into adjacent zones. Layout performance should be verified using the photometric file to confirm the project’s foot-candle and uniformity targets.

What does IP66 provide that is relevant to industrial hazardous areas?

IP66 indicates dust-tight construction and protection against powerful water jets. This is commonly specified where airborne particulates are heavy, where washdown occurs, or where wind-driven moisture can be present, since maintaining sealing integrity is a core requirement for long-term performance.

How does wet-location rating apply to this hazardous location high bay?

Wet-location rating supports installation where the fixture can be exposed to direct moisture, including open-sided structures and industrial environments where water spray, dripping, or condensation can occur. Wiring methods and sealing practices should match the listing requirements for the environment.

Why specify a shatterproof tempered glass lens instead of a polymer optic?

Tempered glass supports impact resistance and chemical compatibility in environments where oils, solvents, or airborne contaminants can degrade plastics. It also supports long-term optical stability where temperature cycling and industrial cleaning agents are common.

How does corrosion-resistant construction relate to long-term sealing and reliability?

Corrosion-resistant construction reduces housing and hardware degradation in environments with salt exposure, chemical vapors, or frequent washdown. Preserving the integrity of seals and fasteners helps maintain environmental protection performance over the fixture’s service life.

What does 5000K CCT support for operational visibility?

5000K is commonly specified where higher contrast supports hazard recognition, label reading, and inspection tasks. In facilities with camera monitoring or detailed identification requirements, 5000K is often selected to maintain consistent visibility conditions.

What does the 120–277V input range support for electrical planning?

The 120–277V driver supports common commercial and industrial branch circuit voltages, including 277V lighting circuits. This can simplify standardization across facilities that operate with different service voltages.

What does the minimum operating temperature of -4°F indicate for cold starts?

A minimum operating temperature of -4°F indicates the driver and LED system are rated for cold-weather starts and operation down to that ambient temperature. For colder sites or wind-exposed installations, confirm expected ambient conditions and any manufacturer guidance on cold operation.

What should be documented for maintenance planning based on the rated life and warranty?

The fixture is rated for 50,000 hours and includes a 5-year limited warranty. For maintenance planning, record fixture locations by classified zone, retain the submittal and photometric package, and verify any replacement maintains the same hazardous approval, optic distribution, and electrical characteristics.