RAB H17XXLB/480 Field-Adjustable UFO LED High Bay — 500W / 400W / 300W Selectable — 480V — Black

The RAB H17XXLB/480 is a high-output, field-adjustable UFO LED high bay in a black finish engineered for 480V electrical systems, delivering up to 78,763 lumens with selectable wattage of 500W, 400W, and 300W (factory default 500W) and selectable CCT of 3000K, 4000K, and 5000K (factory default 4000K). It includes integrated 0-10V dimming to 10%, carries a UL Wet Location listing and IP65 ingress protection rating, and is certified DLC 5.1 Premium (S-Z168KT) — qualifying for the highest tier of utility rebate programs. Cold weather rated to -40°F (-40°C). Designed for very high-ceiling industrial facilities with 480V distribution infrastructure.

Key Features

• Selectable Wattage: 500W / 400W / 300W — field-adjustable via built-in selector switch, factory default 500W
• Selectable CCT: 3000K / 4000K / 5000K — field-adjustable, factory default 4000K
• Maximum Lumen Output: 78,763 lm at 500W
• Lumen Range: 48,951–78,763 lm across all configurations
• Peak Efficacy: 177.5 lm/W
• CRI: 81–85 across all wattage and CCT configurations
• Color Consistency: 7-step MacAdam Ellipse binning for consistent fixture-to-fixture color
• Dimming: 0-10V dimming standard, dim to 10%
• Voltage: 480V, 50/60Hz — dedicated 480V driver; 120V/208V/240V/277V not supported
• Driver: Constant Current, Class 1 — 1.00A (500W) / 0.83A (400W) / 0.63A (300W)
• Location Rating: UL Listed for wet locations; IP65 rated for dust and water ingress
• Cold Weather Start: Minimum starting temperature -40°F (-40°C)
• Maximum Ambient Temperature: 122°F (50°C) at 500W; 135°F (57°C) at 400W; 145°F (63°C) at 300W
• Certifications: UL Wet Location, DLC 5.1 Premium (S-Z168KT), IES LM-79 and LM-80 tested
• Rated Life: 100,000 hours L70
• Warranty: 5-year limited — covers light output, driver performance, and paint finish
• Wattage Equivalency: 500W replaces 1500W Metal Halide
• BAA Compliant: Available on request — contact RAB for a BAA-compliant quote

Performance & Light Output

The H17XXLB/480 delivers 48,951–78,763 lm across all wattage and CCT configurations, with peak efficacy of 177.5 lm/W and input watts ranging from 293.1–477W. CRI 81–85 across all settings. Rated life 100,000 hours L70. Note: per-wattage × CCT lumen breakdown is not published in the RAB H17XXLB/480 specification sheet; the figures above represent the full range across all configurations. Contact RAB Lighting for full photometric data by wattage and CCT setting.

Smart & Control Features

The H17XXLB/480 includes integrated 0-10V dimming to 10% minimum via standard 0-10V DC circuit, compatible with most commercial building control and energy management systems. The 480V dedicated driver does not support screw-in sensor accessories — for occupancy-based control, pair with a compatible external 0-10V occupancy controller wired to the dimming leads.

Electrical

Constant Current, Class 1 driver. Input: 480V, 50/60Hz. Input amps: 1.00A (500W) / 0.83A (400W) / 0.63A (300W). Input watts: 293.1–477W. THD: 6.72% (500W) / 7.93% (400W) / 9.97% (300W) at 480V. Power Factor: 95.2% (500W) / 93.5% (400W) / 89.9% (300W) at 480V. Surge protection: L-N: 6kV · L/N-PE: 10kV. Mercury-free, UV-free, RoHS-compliant components.

Construction

Precision die-cast aluminum housing in black finish formulated for high durability and long-lasting color. Polycarbonate lens. Polycarbonate and aluminum reflector (sold separately). IP65 rated for dust and water ingress. Weight: 17.4 lbs. Dimensions: 16 9/16" dia × 7 13/16" H.

Installation & Mounting

Comes standard with a heavy-duty hanging hook and 6-foot cord. Heavy-duty 3/4"-14 NPT hook; 3/4"-14 pendant mount capable (pendant by others). Optional accessories (sold separately):

• Reflectors: H17XXL-RAL (Aluminum)
• Wire Guards: H17XXL-DWG (Black)
• Pendant Mount Kit: H17XXL-PM KIT Black
• Surface / Yoke Mount Kit: H17XXL-SM KIT Black

Recommended ceiling height: 35–50 ft at 300–400W; 40+ ft at 500W. For ceiling heights of 20–40 ft, consider the RAB H17XLB (240W / 200W / 150W). For 480V white finish, see the RAB H17XXL/480.

Certifications & Rebates

UL Listed for wet locations. DLC 5.1 Premium Listed — product code S-Z168KT. To verify rebate eligibility with your utility provider, visit designlights.org and search product code S-Z168KT. RoHS compliant. IES LM-79 and LM-80 tested per IESNA standards. BAA-compliant version available on request.

Typical Applications

• 480V Industrial Facilities: Engineered for plants, warehouses, and distribution centers with existing 480V distribution infrastructure — eliminates step-down transformers and reduces installation cost
• High-Bay Warehouses & Distribution Centers: Up to 78,763 lm at 500W for very tall racking and open-floor operations at 40+ ft ceilings
• Aircraft Hangars & Large Manufacturing Facilities: Field-selectable wattage right-sizes output for massive open-span industrial spaces
• Cold Storage & Freezer Warehouses: Rated to -40°F (-40°C) for reliable cold-start performance in refrigerated high-bay distribution facilities
• Covered Loading Docks & Industrial Outdoor Areas: UL Wet Location listing and IP65 rating handle direct moisture and dust exposure
• Government & Municipal Facilities: DLC 5.1 Premium certification and BAA-compliant availability support public sector procurement and utility rebate programs

What's Included

• RAB H17XXLB/480 UFO LED high bay fixture — Black (1)
• Heavy-duty hanging hook
• 6-foot cord
• Mounting hardware