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The MADISON ELECTRIC MSBRND Smart Box is a screw-on PVC molded ceiling box rated for fixtures up to 50 pounds. Designed for old work and retrofit applications, it installs faster than a nail-on box and removes cleanly without damaging surrounding drywall or finish surfaces. The box is extra deep to accommodate smoke detectors and carbon monoxide detectors, and its extra thick PVC wall construction provides the stability and rigidity needed for a secure fixture mount. Two 1-inch Phillips head fixture support screws are included for attaching light fixtures directly to the box.
This ceiling box is suited for residential retrofit installations where access is limited, including wiring runs between floors, cathedral ceiling applications, and inaccessible attic spaces. Electricians use it when retrofitting light fixtures, smoke detectors, or CO detectors into existing ceilings without opening walls or requiring structural blocking. Its screw-on design makes it practical for any remodel or service call where a nail-on box is impractical.
Designed as an OEM-style replacement and retrofit solution for standard residential ceiling box applications, including old work and remodel installations where a screw-on ceiling box is required.
Installation is performed by a licensed electrician in accordance with NEC requirements for ceiling box support and fixture mounting. Power to the circuit must be shut off at the breaker panel and verified with a non-contact voltage tester before beginning any wiring work. The screw-on design allows for positioning and removal without additional framing or blocking, making it well suited for finished ceiling retrofits. Follow local code requirements for box fill calculations when connecting conductors.
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