For outdoor use

Outdoor NEMA 3R enclosures, made to order

They protect batteries, rectifiers, control panels and electrical equipment from rain, sleet and ice. We build them at our plant in San Juan del Río, Querétaro, with the size, ventilation and access your equipment needs.

NEMA 3R enclosure with an overhanging roof, light gray, on a white background
  1. 1Overhanging roof
  2. 2Gasketed door
  3. 3Lock
  4. 4Raised base

For outdoor userain, sleet and ice

Made to orderour own plant in Querétaro

6 to 8 weekstypical lead time

All of Mexicofreight quoted up front

What we build

Four NEMA 3R enclosures, one plant

Each one comes from real Avantia work. Tell our team what you need to protect and we will adapt it to your size.

N3R-01NEMA 3R solar battery enclosure
Quote

For batteries

For 1 to 4 solar batteries, with ventilation louvers and an inner shelf.

View product →
N3R-02NEMA 3R enclosure with roof and double access
Quote

With roof and double access

Overhanging roof, front and rear doors, shelf and perforated tray. Ideal for rectifiers.

Quote →
N3R-03NEMA 3R enclosure house with roof, window and ventilation hoods
Quote

Enclosure house with roof

Door with window and side ventilation hoods, for electrical equipment in outdoor yards.

Quote →
N3R-04Multi-door NEMA 3R Jumbo XXL enclosure
Quote

Jumbo XXL

Several sections with windows and louvers. 400 × 200 × 220 cm reference, or custom size.

Quote →
Drawing

Choose an enclosure and see what it includes

Every part is adapted to your equipment. What you do not need does not get built.

WIDTH PER BATTERIES FRONT 1 2 CUSTOM HEIGHT SIDE 3 4 CUSTOM WIDTH FRONT 1 2 6 CUSTOM HEIGHT SECTION 3 4 5 CUSTOM FRONT FRONT 1 2 3 4 SIDE 400 CM REFERENCE FRONT 1 2 3 4
AVANTIA METALES · DRAWING N3R-02
ENCLOSURE WITH ROOF AND DOUBLE ACCESS · NOT TO SCALE
Rectifiers and field equipment

With roof and double access

Opens at the front and rear so you can service it without moving the equipment.

  1. 1Overhanging roof
  2. 2Lock and key
  3. 3Front door and rear door
  4. 4Inner shelf
  5. 5Perforated cable tray
  6. 6Raised base
Quote this enclosure →
What it means

NEMA 3R compared with the others

A NEMA 3R enclosure goes indoors or outdoors. It protects equipment from rain, sleet, snow and falling dirt, and is not damaged by ice forming on the outside.

Compare NEMA 3R with
Protects againstNEMA 1indoorNEMA 12indoorNEMA 3Rindoor and outdoorNEMA 4indoor and outdoorNEMA 4Xindoor and outdoor
Falling dirt and dust
Dripping and light splashingNo
Rain, sleet and snowNoNo
Ice on the outsideNoNo
Windblown dustNoNoNo
Hose-directed waterNoNoNo
CorrosionNoNoNoNo

Summary of the enclosure types in NEMA 250. For windblown dust, hose-directed water or corrosion, see NEMA 4X enclosures.

Where they are used

Equipment that stays outdoors all year

NEMA 3R enclosure with roof next to a pipeline
RectifiersCathodic protection on pipelines and remote sites
NEMA 3R enclosure house at a substation
Electrical equipmentControl panels in outdoor yards
Jumbo XXL enclosure in a plant yard
Industrial plantsLarge equipment, several sections
Questions

Frequently asked questions

What does NEMA 3R mean?

It is an enclosure type defined by the NEMA 250 standard. It works indoors or outdoors, protects equipment from rain, sleet, snow and falling dirt, and is not damaged by ice forming on the outside.

What is the difference between NEMA 3R and NEMA 4?

NEMA 4 adds protection against windblown dust and hose-directed water. If the site is hosed down or has a lot of dust in the air, choose NEMA 4 or 4X.

NEMA 1 or NEMA 3R?

NEMA 1 is for indoor use. If the enclosure will be outdoors, you need NEMA 3R or higher.

Do they include ventilation?

They can be built with louvers or ventilation hoods. It depends on the heat your equipment generates; we review it with you when quoting.

How long do they take?

Typical lead time is 6 to 8 weeks from the approved drawing and deposit.

Do you build NEMA 3R enclosures for control panels?

Yes. Tell us the panel size and whether it goes on a wall, pole or floor, and we build the enclosure to fit.

Quote

Tell us what you need to protect

The equipment, size and location are enough to start. You get a folio number to follow up.

Rain running off the roof edge of a NEMA 3R enclosure