RAB H17XXL/480 Field-Adjustable High Bay — 500/400/300W Selectable — 3000K/4000K/5000K — 480V — White

The RAB H17XXL/480 is a commercial high bay engineered to deliver up to 78,763 lumens with field-adjustable 500W / 400W / 300W power settings and switchable 3000K / 4000K / 5000K color temperatures. Operating on 480V electrical systems with 0–10V continuous dimming, this luminaire provides energy-efficient replacement for legacy fixtures up to 1500W Metal Halide. Built with an IP65 wet location rating and UL Listing, it is qualified for commercial utility rebates under DLC Premium standards and features an integrated expansion port for automated facility lighting controls.

Key Features

• Selectable Wattage: 500W / 400W / 300W — field-adjustable via onboard switch
• Wattage Equivalency: Replaces legacy 1500W Metal Halide fixtures for direct energy savings
• Maximum Lumen Output: 78,763 lm at 500W (4000K setting)
• Peak Efficacy: 177.5 lm/W for high-efficiency commercial operation
• Color Consistency: 7-step MacAdam Ellipse binning to achieve consistent fixture-to-fixture color
• CRI: >81 color rendering across all settings
• Selectable CCT: 3000K / 4000K / 5000K — field-adjustable via onboard switch
• Lens & Optics: Durable polycarbonate lens
• Dimming: 0–10V continuous dimming standard (dims down to 10%)
• Voltage: 480V AC, 50/60Hz constant current driver
• Location Rating: UL Listed for wet locations; IP65 ingress rated
• Operating Temperature: −40°F (−40°C) to 122°F (50°C) ambient range
• Certifications: DLC Premium, UL Listed, RoHS Compliant
• Rated Life: L70 >100,000 hours per IES TM-21 standards
• Warranty: 5-year limited warranty — RAB
• Sensor Compatibility: Integrated expansion port accepts plug-and-play controls without internal wiring

Performance & Light Output

At 500W: 71,593 lm (3000K / 150.3 lm/W), 78,763 lm (4000K / 171.7 lm/W), 75,887 lm (5000K / 159.1 lm/W).

At 400W: 62,135 lm (3000K / 155.9 lm/W), 67,178 lm (4000K / 174.6 lm/W), 65,815 lm (5000K / 164.9 lm/W).

At 300W: 48,951 lm (3000K / 162.1 lm/W), 52,028 lm (4000K / 177.5 lm/W), 51,718 lm (5000K / 171.1 lm/W).

CRI >81 across all configurations. Rated life 100,000 hours (L70) per IES TM-21 testing. Delivers direct energy reduction compared to traditional high-intensity discharge systems.

Smart & Control Features

The H17XXL/480 features an integrated low-voltage control receptacle supporting modular sensing and automated facility lighting control:

• 0–10V Continuous Dimming (Standard): Standard dimming control compatible with commercial 0–10V dimmers and centralized building automation systems (BAS).
• Sensor Compatibility (Accessory): Accepts field-installable PIR and microwave occupancy sensors via the integrated expansion port without opening the internal driver compartment.
• Lightcloud Blue (Accessory): Compatible with Bluetooth mesh controllers for wireless group control, automated scheduling, and occupancy sensing.

Compatible plug-and-play sensors include the PIR40 and MVS50 series — sold separately. Field sensor adjustments can also be managed using an optional handheld wireless remote (catalog # MSR1, sold separately).

Electrical

Powered by a Class 1 constant current driver operating on 480V AC at 50/60Hz. Delivers high electrical efficiency with a Power Factor >0.90 and Total Harmonic Distortion (THD) <10%. Integrated surge protection protects internal electronics against line-to-line and line-to-ground transient voltage spikes. Includes pre-wired 0–10V dimming leads. Factory-equipped with a 6-foot cord. RoHS compliant.

Operating current and amp draw across input voltages for branch circuit and breaker loading calculations:

Construction

Housing & Thermal: Precision die-cast aluminum housing. The housing functions as a high-efficiency passive heatsink, dissipating heat away from LED arrays and internal driver circuits to preserve lumen maintenance across the 100,000-hour rated lifespan.

Lens & Optics: Features a durable polycarbonate lens.

Finish: Commercial finish in White formulated for high resistance against corrosion and surface wear in demanding industrial facilities.

Environmental Sealing: IP65 rated and UL Listed for wet locations, providing a sealed barrier resistant to dust and moisture ingress. Ambient operating temperature range: −40°F (−40°C) to 122°F (50°C).

Dimensions & Weight: 16.56" Dia × 12.06" H. Fixture weight: 17.4 lbs.

Installation & Mounting

Standard Hardware: Ships standard with a hanging hook accessory for quick suspension installation.

Mounting Options: Compatible with rigid pendant mounting via the PM KIT (sold separately) and direct surface mounting via the SM KIT (sold separately).

Wiring: Includes a factory-installed 6-foot cord for power input and 0–10V dimming leads.

Accessories (Sold Separately):

• Mounting Brackets: H17XXL-PM KIT (Pendant Kit, White) | H17XXLB-PM KIT (Pendant Kit, Black) | H17XXLSM -KIT (Yoke Mount, White) | H17XXLBSM -KIT (Yoke Mount, Black)
• Reflectors & Lenses: H17XXL-RAL (Aluminum Reflector)
• Wire Guards: H17XXL-WG (White)
• Emergency Battery Backup: EMHB60 (60W, White) | EMHB60/LCB (60W Lightcloud Blue, White)
• Sensors & Controls: PIR40 (PIR Sensor) | MVS50 (Microwave Sensor) | PIR20 (Low Ceiling PIR) | MVS20 (Low Ceiling MVS) | PIR40/LCB (Lightcloud Blue PIR) | MVS50/LCB (Lightcloud Blue MVS) | MSR1 (Programming Remote)

Certifications & Rebates

• DLC Premium: Qualifies for utility rebates (searchable on designlights.org under code S-Z168KT)
• UL Listed: Certified for wet locations per UL standards for commercial luminaires
• RoHS Compliant: Manufactured free of lead, mercury, and hazardous heavy metals

Typical Applications

• Warehouses & Distribution Centers — replaces legacy 1500W Metal Halide systems for direct energy savings
• Manufacturing & Assembly Facilities — field-adjustable CCT and 7-step MacAdam Ellipse binning supports visual task accuracy and tailored comfort
• Covered Loading Docks & Canopies — UL Wet Location listing and IP65-sealed enclosure protect against airborne moisture and dust
• Gymnasiums & Athletic Facilities — optional wire guards and pendant mounts provide impact protection and stability

What's Included

• RAB H17XXL/480 Field-Adjustable High Bay — White
• Hanging hook accessory
• Factory-installed 6-foot power cord
• Installation and operation instructions