The Chief CMS491 is a 1' x 2' enclosure that installs in a suspended ceiling grid and hides AV equipment such as switchers, extenders, amplifiers or network gear above the tile, keeping classrooms and conference rooms free of visible boxes and cable clutter. A drop-down carriage door gives full access to the equipment for service. A detachable power housing can be pre-installed by the electrician and attached to the box later; it accepts up to two single-gang or one dual-gang outlet facing into the box or the room, with four nested knockouts for 1-1/4", 1" and 1/2" conduit. The AV tray ships with one shelf, and total capacity is 100 lbs (45 kg): 50 lbs for the projector ceiling plate and 25 lbs per shelf location. Speed-Connect installation hardware is included, and the lightweight build allows one-person installation. The box is UL evaluated for air-handling spaces per NEC Article 300.22(C) and TAA compliant.
Key Features
- 1' x 2' suspended-ceiling enclosure
- 100 lb (45 kg) total capacity
- Built-in ventilation
- Speed-Connect hardware included
- Plenum (NEC 300.22(C)) evaluated
Ideal Applications
Classrooms, huddle and conference rooms, and training spaces with 1' x 2' suspended grids where AV electronics should be out of sight but serviceable.
Compatibility
Fits 1' x 2' suspended ceiling grids. Optional second shelf CMSUNV1 (sold separately). Outlets/receptacles for the power housing supplied by the electrician.