Chief CMA640 1.9" Inner Diameter Decorative Ring, CMS/CPA Fixed/Inner Adjustable Column

Give suspended ceiling installations a finished, professional look with the Chief by Legrand CMA640 decorative ring. Designed as a mounting ring for pro projector accessories, this trim ring neatly conceals the hole where CMS/CPA extension columns pass through ceiling tiles, improving aesthetics and site perception—important for boardrooms, classrooms, and surveillance control rooms. The hinged design opens for fast access to cabling and maintenance without disturbing the ceiling tile, while the 1.9" inner diameter and 3.6" outer dimensions ensure a precise fit with fixed and inner-adjustable columns. Constructed from aluminum with a chrome finish, the CMA640 resists tarnish and maintains a low-profile appearance that complements AV, security, and monitoring hardware. Easy to install and service, it reduces on-site labor time and keeps camera or projector mounts looking clean and professional. Ideal for integrators and facilities managers who need a discreet, durable ceiling trim solution—order the CMA640 to complete your next projector or surveillance installation.

• Conceals ceiling cutouts for a polished, professional installation
• Hinged design provides quick access for wiring and maintenance without removing the trim
• 1.9" inner diameter is tailored for CMS/CPA fixed and inner-adjustable projector columns
• Durable aluminum construction with chrome finish resists wear and complements AV and security environments
• Improves aesthetics in surveillance, monitoring, and conference-room setups while simplifying serviceability
• Backed by a 5-year limited warranty for reliable long-term installations