Logic & Relay

Pick the Right Control Panel Enclosure: Four Steel Boxes for DIN-Rail and Junction Projects, $43-$140

Compare four steel control-panel enclosures from $43.13 to $139.99 and choose the right compact or 24x24 box for DIN-rail and junction projects.

Last updated Aug 17, 2026

You can spend a little over $43 or almost $140 on a steel electrical enclosure, and both boxes can protect control wiring. The harder question is which size and setup actually fit the components you need to mount.

All four enclosures in this line-up are new carbon-steel boxes, but they split into two practical groups: a pair of compact junction boxes and a pair of larger 24x24-inch cabinets with different depths. Your first move is to measure the space you need, then decide what kind of mounting surface the box should give you. For control-panel work that includes DIN-rail-mounted components, the enclosure is the shell; the layout inside is up to you.

Quick take

If you need maximum depth for bulky breakers or terminal blocks, the deep carbon steel box is the one to look at. If you want the larger footprint at a middle price, the NEMA 4X model is the balanced option. And if your project is compact, the two Hualey enclosures cover the low end of the budget range.

Listed price comparison

ProductListed pricePrice bar
Steel Electrical Box Electrical Enclosure Box 24x24x12'' Carbon Steel IP65USD 139.99
NEMA 4X Steel Enclosure 24x24x8" IP66 Waterproof Electrical Box w/Mounting PlateUSD 68.64
Steel Electrical Enclosure Wall Mount Junction Box Outdoor IP65 12/16/20/24USD 43.13
12/16/20/24" IP65 Steel Electrical Enclosure Wall Mount Junction Box OutdoorUSD 44.29

Decision matrix

  • Most interior depth: Deep Steel Electrical Box
  • Large footprint at mid-price: NEMA 4X Steel Enclosure
  • Lowest-priced compact box: Compact Hualey Junction Box
  • Near-identical second compact box: Hualey Outdoor Junction Box

Product notes

Deep Steel Electrical Box

Steel Electrical Box Electrical Enclosure Box 24x24x12'' Carbon Steel IP65

The main reason to start here is interior depth. The 12-inch dimension gives you room for bulky breakers, terminal blocks, or wiring that a shallower box can't fit, and the hinged, lockable cover keeps access straightforward. It's also the most expensive of the four, so it makes sense only when you genuinely need the extra space. The gray-white RAL7035 powder-coated finish gives it a clean industrial look, but if your installation is a small junction point, this 24x24 cabinet is probably more capacity than the job calls for.

NEMA 4X Steel Enclosure

NEMA 4X Steel Enclosure 24x24x8" IP66 Waterproof Electrical Box w/Mounting Plate

This one earns its place with the included mounting plate. The galvanized inner plate gives you a defined surface to attach breakers, terminal blocks, or other control hardware. It keeps the familiar 24x24-inch footprint while trimming depth to 8 inches, which can help if a 12-inch-deep cabinet would push too far off the wall. The trade-off is the weight-about 55.56 lbs-so give it a sturdy mounting surface. At $68.64, it splits the price range between the two budget enclosures and the deep 24x24x12.

Compact Hualey Junction Box

Steel Electrical Enclosure Wall Mount Junction Box Outdoor IP65 12/16/20/24

If your project only needs a compact outdoor junction box, this is the entry point. The listed dimensions are 19.7x15.7x7.8 inches, and the carbon-steel body is offered at the lowest price in the group. A reinforced lock and hinged cover support everyday access, while the indoor/outdoor suitability means it can handle sites like factories, courtyards, and construction areas. The limitation is obvious: the smaller footprint won't hold a full 24-inch-wide control layout, so you'll need to keep components sparse or use a second box for a larger build.

Hualey Outdoor Junction Box

12/16/20/24" IP65 Steel Electrical Enclosure Wall Mount Junction Box Outdoor

This second Hualey box costs $1.16 more than the lowest-price version and shares the same 19.7x15.7x7.8-inch dimensions. If the slash-separated size notation in the title is what you need, the practical difference is small. The two Hualey boxes have the same dimensions and indoor/outdoor suitability, so the choice can come down to which product title you prefer. The limitation: you still get a compact enclosure, not a 24x24 cabinet, so it's best for smaller junction work rather than a large control panel with lots of components.

Final recommendation by use case

For a deep control cabinet where you'll mount a lot of hardware, choose the deep 12-inch box and accept the top price. For a larger footprint at a middle price, the NEMA 4X box is the practical pick. For a compact outdoor junction box on a tight budget, choose the $43.13 Hualey; if you want the near-identical compact box with a different product title, the $44.29 version is your option.

Products in this article
Steel Electrical Box Electrical Enclosure Box 24x24x12'' Carbon Steel IP65USD 139.99View on eBayNEMA 4X Steel Enclosure 24x24x8" IP66 Waterproof Electrical Box w/Mounting PlateUSD 68.64View on eBaySteel Electrical Enclosure Wall Mount Junction Box Outdoor IP65 12/16/20/24USD 43.13View on eBay12/16/20/24" IP65 Steel Electrical Enclosure Wall Mount Junction Box OutdoorUSD 44.29View on eBay
Steel Electrical Box Electrical Enclosure Box 24x24x12'' Carbon Steel IP65USD 139.99View on eBayNEMA 4X Steel Enclosure 24x24x8" IP66 Waterproof Electrical Box w/Mounting PlateUSD 68.64View on eBaySteel Electrical Enclosure Wall Mount Junction Box Outdoor IP65 12/16/20/24USD 43.13View on eBay12/16/20/24" IP65 Steel Electrical Enclosure Wall Mount Junction Box OutdoorUSD 44.29View on eBay

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