RAB T17FA-2X4 2x4 LED Troffer 6521 Lumens 50W Selectable CCT 120-277V Recessed White

RAB T17FA 2x4 LED Troffer — 50W Selectable, 6521 Lumens, 120-277V

The RAB T17FA-2X4 is a versatile 2x4 LED troffer designed for modern commercial drop ceilings. Operating at up to 50W to deliver 6,521 lumens across a universal 120-277V input, this large-format fixture provides maximum flexibility with built-in field-adjustable wattage and color temperature controls. Designed with a frosted polystyrene lens, it seamlessly integrates into standard T-grid ceilings, making it an ideal aesthetic upgrade for offices, retail spaces, and educational facilities.

Key Features

• Power Consumption: 50W Max (Field-adjustable 50/40/30W)
• Lumen Output: Up to 6,521 lumens
• Input Voltage: 120-277V
• Color Temperature: Selectable CCT (3500K/4000K/5000K)
• Dimming: 0-10V continuous (10-100%)
• Lens: Frosted polystyrene (PS)
• Housing: Aluminum frame with cold-rolled steel back
• Environmental Rating: IP20 and damp location listed
• Lifespan: Tested to IESNA LM-79 and LM-80 standards

Typical Applications

• Large commercial office spaces
• Open retail environments
• Educational institutions
• Healthcare facilities
• Hospitality corridors

Performance & Light Output

This 2x4 troffer outputs a maximum of 6,521 lumens at its highest 50W setting, achieving an excellent efficacy of up to 147 lumens per watt. It features comprehensive field-selectability with three distinct color temperatures (3500K, 4000K, and 5000K) and three wattage levels, allowing precise visual tuning for any environment. The optical design utilizes a frosted polystyrene lens to ensure smooth, glare-free light distribution while maintaining an 80+ CRI over its extended operational lifespan.

Electrical & Controls

Powered by a high-efficiency Class 2 driver operating on a universal 120-277V circuit, this luminaire ensures stable performance across standard commercial grids. It includes standard 0-10V dimming leads, capable of dimming down to 10 percent, which facilitates smooth integration with daylight harvesting sensors and energy management systems. For enhanced functionality, this unit is compatible with optional third-party 0-10V dimming controls (sold separately).

Construction & Durability

Engineered for lightweight durability, the fixture consists of a robust aluminum frame and a cold-rolled steel back housing, finished in a clean white powder coat to blend seamlessly with standard ceiling grids. The enclosed unit carries an IP20 ingress protection rating against dust, and it is strictly UL listed for use in environmentally controlled damp interior spaces. It reliably starts in extreme temperatures down to -4 degrees Fahrenheit and operates safely in ambients up to 113 degrees Fahrenheit.

Installation & Mounting

The fixture is designed for rapid, drop-in installation into standard 2x4 recessed T-bar ceiling grids. It rests securely on the grid structure, allowing for quick deployment in both retrofit and new construction projects. Installers can adapt the unit for alternative applications using optional surface and recessed mounting kits designed specifically for drywall ceilings (sold separately), ensuring versatile placement across varied architectural layouts.

What's Included

• (1) 2x4 LED Troffer Fixture
• Pre-installed Driver Assembly