B-Line Eaton series acoustical tee and t-bar fasteners, Acoustical tee, 1.38lbs, Adjustable box hanger T-bar, 25 lbs without dedicated dropwire, 70 lb

The BA50A is an adjustable box hanger that spans between the tees of an acoustical suspended ceiling grid and carries an electrical box or fixture box at any point along that span. It attaches to the T-bar rather than to the deck, so the box can be positioned where the device needs to land instead of where a structural hanger happens to fall.

Yes, the BA50A carries UL/CUL listing, which covers it for use in both US and Canadian jurisdictions. For inspectors on commercial and institutional jobs that is usually the first thing asked about ceiling-grid mounted box supports.

It is built as an acoustical tee and T-bar fastener, so it clips to the exposed tee of a standard suspended acoustical grid rather than to drywall or deck. If your ceiling is a concealed-spline or a hard-lid assembly with no exposed tee to grab, this is the wrong support and you want a bar hanger or box bracket that fastens to framing instead.

Order it as BA50A, an Eaton B-Line series acoustical tee and T-bar fastener. It ships as a single hanger weighing 1.38 lb, so figure one per box location when you take off the job.

A grid-mounted hanger like the BA50A is intended for boxes and fixtures supported off the acoustical tee itself, and Eaton lists a higher capacity when a dedicated dropwire is added to the assembly. Heavier fixtures, and anything your local code requires to be independently supported, still need their own wires back to structure. The hanger positions and holds the box; it does not replace a required structural support.