B-Line Eaton Arrow Hart industrial grade toggle switch, #14-10 AWG, 20A, Industrial, Flush, 120/277V, Back and side, Screw, Ivory, Single-Pole, Single

Yes. The AH1221V is rated 120/277V at 20A, so it handles 277V commercial and industrial lighting branch circuits as well as standard 120V loads. That dual rating is why it shows up on fluorescent and LED lighting jobs where 277V is the norm.

Screw terminals accept #14 through #10 AWG copper. That covers 14 AWG for a 15A circuit and 12 AWG for a full 20A run, and it will still take 10 AWG if the branch circuit was upsized for voltage drop.

Single-pole, single throw. It switches one hot leg from one location. If you need to control the same fixture from two locations, a single-pole device will not do it, you need a three-way switch at each end.

Both. The AH1221V is a back and side wire device, so you can push conductors straight in behind the screw terminals or loop them under the side screws. Back wiring saves depth in a crowded box and speeds up repetitive work like a floor of offices.

Grade is about duty. The AH1221V is built for industrial application with brass terminal enclosure material and a polycarbonate body, rated a full 20A at 120/277V. A residential grade switch is typically 15A, 120V only, and not intended for the switching frequency you get in a plant, warehouse, or school corridor. For high-traffic multi-family and MRO work, the industrial grade device is the one that gets standardized on.

It is a flush mount strap-style device measuring 4.19 by 1.005 by 1.3 inches, which is standard yoke-and-strap geometry for a single-gang box and a standard toggle wall plate. The 1.3 inch body depth is the number to watch in a shallow box packed with conductors.

The AH1221V is ivory. Ivory and white are the two common wiring device colors and they do not visually match, so check one existing device against a sample before you commit to a bulk change-out. If your existing plates are white, the ivory toggle will read as off-color behind them.

Order it as Arrow Hart AH1221V. That is the manufacturer part number for the ivory, single-pole, 20A, 120/277V back and side wire industrial grade toggle.

No. It is the switch only, ivory bodied, so order plates separately if you need them. Match the plate color to the device if appearance matters across a floor of openings, and pick the plate material (nylon, thermoset, or stainless) to suit the room.