Red Dot S107CN OUTDOOR RECT BOX 5X3/4 HOLE SILVER

Yes. The S107CN is a Dry-tite weatherproof box, rated for dry, damp and wet locations, so it can be mounted outside on a wall or post to house a wiring device, switch, electronic component or terminal block. It needs a gasketed cover to actually close out the location; the box's clean cover edges are what let the gasket seal properly.

The S107CN has 17 cubic inches of volume. Use that number against the NEC box fill calculation for your conductor size rather than counting wires by eye, and remember the device, clamps and grounds each take their own allowance out of that 17 cubic inches. For a single device in a 17 cubic inch box you are typically fine with a couple of branch circuit conductors plus ground in 12 AWG, but the fill math is what governs.

The S107CN is a rectangular single-gang outdoor box with five 3/4 inch threaded holes, so it accepts 3/4 inch rigid or IMC conduit at any of the five openings. That gives you back, top, bottom and both ends in most orientations, so you can feed and continue a run without an extra fitting. Any hub you do not use gets a closure plug to keep the box weathertight.

The S107CN is sold as a box, each, and it is the box only. You order the cover to suit the device going in it: a blank cover for a junction point, a duplex receptacle cover, a toggle switch cover, or a flip lid or in-use cover if a cord stays plugged in outdoors. Match the cover to a single-gang rectangular Dry-tite box so the gasket lands on the box's cover edges.

Go with the S107CN when you are running threaded metal conduit, rigid or IMC, and want a grounded metallic enclosure on an exterior wall, post or equipment stand. Its five 3/4 inch threaded hubs make it up directly to that conduit. A non-metallic PVC box is the better pick when the run is PVC conduit and the box is in a corrosive or coastal environment where you do not want a metal enclosure at all. For a plain indoor dry-location device you do not need a weatherproof box in the first place.

Silver. If the existing outdoor boxes on the building are Red Dot Dry-tite in the same silver finish, the S107CN drops in beside them and looks consistent; if your other openings are bronze or white, the box itself will stand out unless it is painted or hidden behind a matching cover.

Yes, that is one of its stated uses. Dry-tite boxes house wiring devices, switches, electronic components and terminal blocks, and the 17 cubic inch volume gives room for a small block or component in a single-gang footprint. Keep line and low voltage separated per code if both enter the same enclosure.