Chief CMA473

Overview

The Chief CMA473 is a plenum rated storage box designed to provide a secure and organized space for power bricks, extenders, and extra cables in suspended ceiling installations. It fits seamlessly with Chief CMS440 and CMA440 ceiling kits, allowing installers to maintain a clean and professional appearance by hiding equipment above the ceiling tile. Its UL listing for air-handling spaces ensures compliance with strict building codes commonly found in offices, classrooms, healthcare facilities, and government buildings.

Key features

• Plenum rated design allows safe installation in air-handling spaces without additional fire-rated enclosures
• Low-profile housing with a flat, removable lid for easy access and installation in tight ceiling spaces
• Multiple knockouts sized at 0.5-inch and 1.5-inch enable precise routing of power and data cables
• Interior accommodates two dual-gang surface-mount electrical boxes for mounting receptacles or low-voltage plates alongside equipment
• Compatible with Chief CMS440 and CMA440 suspended ceiling kits for a streamlined installation process
• TAA compliant, making it suitable for government and institutional projects
• Helps protect cables from damage and keeps equipment secure while maintaining a tidy ceiling appearance

Key specs

• Plenum rating: UL listed for use in air-handling spaces
• Compatible ceiling kits: Chief CMS440 and CMA440
• Knockout sizes: 0.5-inch and 1.5-inch
• Electrical box capacity: Supports two dual-gang surface-mount boxes
• Compliance: TAA compliant for government and institutional use

Installation and setup

The slim design of the CMA473 allows it to fit comfortably in tight spaces above suspended ceilings. Its flat, removable lid simplifies hardware placement and servicing without the need to maneuver around bulky covers. The strategically placed knockouts facilitate neat cable management, ensuring power and data lines are routed exactly where needed. This thoughtful design reduces installation time and helps maintain a clean, professional look in any environment.

Ideal uses and environments

This storage box is well suited for environments that require strict adherence to building codes, such as offices, classrooms, healthcare facilities, and government buildings. It is an excellent choice for AV technicians, IT staff, and facilities managers who need to keep power supplies and cables secure and out of sight while maintaining easy access for maintenance. The CMA473 fits well in any setup where suspended ceilings are used and a neat, code-compliant installation is essential.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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