RAB C-SWISH 2x4 LED Troffer — 40W Selectable, 4884 Lumens, Microwave Sensor, Battery Backup

The RAB C-SWISH2X4/MVS/E is a contractor-grade 2x4 LED troffer engineered for modern commercial drop ceilings requiring automated control and essential life safety. Operating at up to 40W to deliver 4,884 lumens across a universal 120-277V input, this large-format fixture features field-adjustable wattage and selectable CCT capabilities alongside an integrated microwave occupancy sensor and emergency battery backup system. Designed with a volumetric center-basket profile and frosted polycarbonate lens, it seamlessly integrates into standard T-grid ceilings.

Key Features

• Emergency System: Integrated 90-minute battery backup
• Control: Integrated Microwave (MVS) Occupancy Sensor
• Power Consumption: 40W Max (Field-adjustable 40/30/20W)
• Lumen Output: Up to 4,884 lumens
• Input Voltage: 120-277V
• Color Temperature: Selectable CCT (3500K/4000K/5000K)
• Dimming: 0-10V continuous (dims down to 10%)
• Lens: Frosted polycarbonate
• Lifespan: 100,000 hours (L70)

Typical Applications

• Large commercial office egress corridors
• Restrooms and partitioned areas
• Educational institutions
• Healthcare facilities
• Enclosed stairwells

Performance & Light Output

This 2x4 troffer outputs a maximum of 4,884 lumens at its highest 40W setting during normal operation, achieving an excellent efficacy of up to 143 lumens per watt. In the event of a power failure, the integrated battery automatically activates, supplying standby power to operate the fixture at a reduced illumination level for a minimum of 90 minutes. It features comprehensive field-selectability with three distinct color temperatures and three wattage levels. The optical design utilizes a frosted polycarbonate lens to ensure smooth, glare-free volumetric light distribution.

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. This model features an integrated Microwave (MVS) occupancy sensor, which detects fine motion through minor physical obstructions, ensuring lights remain on when spaces are occupied. Installers must ensure an unswitched hot supply line is connected to properly charge the emergency battery system and allow it to function during localized outages.

Construction & Durability

Engineered for lightweight durability and contractor-friendly installation, the fixture features a robust housing finished in a clean white coating to blend seamlessly with standard ceiling grids. The fully enclosed design minimizes dust accumulation and protects the internal LEDs. It is strictly IC rated, authorizing safe, direct contact with standard ceiling insulation, and carries a UL listing for use in environmentally controlled damp interior spaces.

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. It features integral grid clips that bend over the T-bar to secure the unit against vibration, and support wire holes are provided for anchoring to the structural ceiling per commercial safety codes.

What's Included

• (1) 2x4 LED Troffer Fixture
• (1) Integrated Microwave Sensor
• (1) Emergency Battery Backup Unit