Namunanee steel-01 Outdoor Electrical Box Review

The Namunanee steel-01 is an outdoor electrical and equipment enclosure: a steel box with a hinged, gasketed door, an aluminum alloy back beam for mounting gear and four ventilation slots. It mounts with screws, on a wall or on a pole.

It is not a server rack or a network cabinet. There are no 19-inch or 10-inch mounting rails, no defined U-space and no rack doors or side panels, so gear attaches to the back beam rather than to rack rails. For indoor home-lab or office equipment, a wall-mount rack or cabinet is the right product; this box serves the locations where a rack cannot be installed.

Cooling fans are not included. The four slots give passive airflow only, so plan the heat load and the airflow yourself before you commit.

The body is stamped from a single cold-rolled steel plate 0.06 in (1.5 mm) thick.

Inside, an aluminum alloy back beam is the surface that the gear mounts to. The finish is a double layer of powder coating and crystal plating in the light color shown, and a light finish reflects sun better than a dark one, which counts for a box that sits outdoors all summer.

The hardware that ships with it is 304 stainless steel: screws, hoops and insect screens, plus various spare installation parts in the chassis. Stainless matters at the fixings, where plated steel would start to rust first.

Buyers on Amazon most often praise the build quality, and it is the theme with the largest share of positive mentions. One buyer reports the box is sturdier than expected.

The rating is IP65: dust-tight, and protected against water jets from any direction. That covers rain, spray and a hose-down. It does not cover submersion, so the box is not built to sit under water.

The gasketed door is the sealing feature buyers mention, and sealing mentions are mostly positive, with one buyer noting the gasket seals tightly. The four ventilation slots are part of the same design: they let the box shed heat passively, and the sealing and the airflow are balanced against each other.

Four ventilation slots and the integrated exhaust design give passive airflow. That is enough for low-dissipation gear such as a router, a small switch, a PoE injector or a modem, and not enough for high-power equipment.

Cooling fans are not included, so if the install needs forced airflow, you supply and fit the fan. The box is designed with ventilation in mind, but the fan is the buyer's responsibility.

The insect screens included with the hardware keep insects out of the ventilation path, which is a real concern for a box that stays outdoors.

The box mounts on a wall with screws or on a pole with the 304 stainless hoops. Both sets of hardware ship in the box, so no separate mounting kit is needed.

For planning, the enclosure is 15.7 inches high, 11.8 inches wide and 7.9 inches deep. The depth is enough for a router or a small switch plus cabling, but check the depth of your gear before ordering, since a deep unit plus a power brick and a bend radius can run out of room.

The stainless mounting hardware is one of the features that justify the box: it is the difference between a box that stays put for years and one whose fixings rust out.

Gear mounts to the aluminum alloy back beam, and the chassis includes spare installation parts for the job. The sheet does not specify pre-drilled cable entries, so plan the openings yourself.

Drill cable entries on the bottom face only, fit glands sized to the cable, add a drip loop and seal around each one.

Buyers on Amazon have opinions about the openings, and hole design is one of the themes that skew negative, so measure your connectors and cable diameters first.

The lock is the most-criticized feature. Amazon's summary of its customer reviews reports one buyer noting the lock can be opened with a flat-head screwdriver, and lock mentions skew negative overall.

The box's first job is weather protection. Physical security is something the buyer adds.

The steel-01 model number is shared across several sizes in the line, and size feedback is mixed: some buyers find the box roomy, others say it is the wrong size. Order by the dimensions on the product card, not by the model name.

This review covers the version that is 15.7 inches high, 11.8 inches wide and 7.9 inches deep. That fits a router, a small switch, PoE injectors, a modem and small monitoring or security electronics, which are among the intended uses the sheet lists alongside warehouse and general electronics work.

Buyers on Amazon most often praise the build quality, and they also speak well of the sealing, the value for money, the appearance and the functionality. Size is a divided topic: some find it roomy, others say it is the wrong size.

The complaints are specific. The lock draws the most criticism, and the hole design is the other negative theme. The large majority of ratings are four or five stars, so the box is well received overall, and the criticisms are fixable rather than fundamental.

The Namunanee line includes a second version, model Fan001, which adds a thermostat and a fan to the same 15.7 by 11.8 by 7.9 inch steel enclosure. Choose Fan001 if your gear runs hot and you want the airflow controlled automatically; choose the steel-01 if your equipment is low-dissipation and you would rather fit a fan yourself.

• Pros: one-piece 0.06 in (1.5 mm) cold-rolled steel body; aluminum alloy back beam; double-layer powder and crystal plating finish; IP65; gasketed door; four ventilation slots with insect screens; wall or pole mounting with 304 stainless hardware included; roomy for its class according to buyers.
• Cons: cooling fans not included; the lock is easily defeated and widely criticized; the hole design draws complaints; size feedback is mixed, so measure carefully; not a rack, with no 19-inch or 10-inch rails or U-space.