Description
The Chief CMS491CP2 is a plenum-rated 1' × 2' above-ceiling storage box with integrated column drop support, designed to conceal AV equipment while maintaining a clean, professional ceiling appearance. It installs directly into a standard suspended ceiling grid and supports a 1.5" NPT column drop for projector mounting within the same tile space.
This solution includes a high-performance dual-gang power module with integrated surge protection and line filtering to protect sensitive AV equipment from power disturbances, high-frequency noise, and electronic interference. Built-in ventilation and accessible drop-down door design simplify serviceability while supporting reliable long-term operation.
Ideal for classrooms, conference rooms, and commercial AV installations, the CMS491CP2 combines secure equipment storage, power protection, and plenum-rated compliance in a lightweight, installer-friendly design.
| Specification | Details |
|---|---|
| Manufacturer | Chief |
| Model | CMS491CP2 |
| Product Type | Above-Ceiling AV Storage Box with Column Drop |
| Ceiling Tile Size | 1' × 2' (30.48 × 60.33 cm) |
| Color | White |
| Mounting Location | Suspended Ceiling |
| Column Drop Support | Supports 1.5" NPT column drop (column not included) |
| Power Outlet | Dual-gang surge-protected and filtered receptacle |
| Surge Protection | Non-sacrificial multi-stage surge protection |
| Noise Filtering | Reduces common and differential mode noise up to 40 dB |
| Electrical Rating | 125V~, 60Hz, 15A |
| Maximum Power Output | 1875 W continuous |
| Weight Capacity | 100 lbs (45.4 kg) total |
| Projector Plate Capacity | 50 lbs (22.7 kg) |
| Shelf Capacity | 25 lbs (11.3 kg) per shelf location |
| Ventilation | Integrated ventilation |
| Knockouts | Four nested knockouts for 1-1/4", 1", and 1/2" conduit |
| Installation | Lightweight construction for single-person install |
| Compliance | UL Listed, plenum-rated for air-handling spaces |
| Application | Commercial AV, Education, Corporate |
| Included Hardware | Speed-connect installation hardware |
Payment & Security
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Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
Building a Complete AV System?
This product is rarely deployed alone. It’s typically part of a fully integrated AV system. AVENDOR designs, integrates, and supports end-to-end environments—from single rooms to enterprise-wide deployments.
- System Design & Engineering
- Installation & Integration
- Programming & Ongoing Support
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