NEMA 4X enclosures

NEMA 4X enclosures keep out windblown dust, rain, splashing and hose-directed water, are undamaged by ice forming on the outside, and add a corrosion test that Type 4 does not have. That makes 4X the usual choice for washdown, outdoor and corrosive locations. We build 65 wall-mount sizes, 6 × 4 × 4 in to 60 × 36 × 16 in, each in 304 and 316L stainless with a #4 brushed finish, rated NEMA 4X / IP66 by the manufacturer (not UL listed) and delivered in 10 business days.

At a glance

Every NEMA 4X size we build

Shop wall-mount
Sizes
65 wall-mount sizes, 6 × 4 × 4 in to 60 × 36 × 16 in (outside H × W × D, body only)
Footprints
29 height × width footprints; depths 4, 6, 8, 10, 12 and 16 in
Grades
304 and 316L stainless, #4 brushed; which grade
Rating
NEMA 4X / IP66 by the manufacturer; not UL listed
Door
Continuous stainless hinge, full door height; continuous gasket
Latching
Quarter-turn latch with key: 6 to 16 in tall; 2 quarter-turn latches, top one keyed: 20 to 24 in tall; 3-point swing handle with key lock: 30 to 60 in tall
Inside
Removable galvanized mounting panel on welded studs; ground studs on body and door
Mounting
Four wall-mount feet, outside the sealed box
CAD
STEP, DWG, DXF and PDF for every size: CAD library
Delivery
Made to order, delivered in 10 business days, anywhere in the world

What the X adds

NEMA 4 or NEMA 4X?

NEMA types explained
NEMA 4 and 4X: the same dust, water and ice protection; 4X adds corrosion resistance (NEMA 250)
NEMA Type 4NEMA Type 4X
DustWindblown dustSame
WaterRain, sleet, snow, splashing and hose-directed waterSame
IceUndamaged by ice forming on the outsideSame
CorrosionThe outdoor salt-spray test every outdoor type gets: 600 hours against a G90 galvanized steel specimenAnother 200 hours of salt spray, compared with an AISI 304 stainless steel specimen
Use it forIndoor or outdoor sites with water but no corrosive exposureWashdown chemicals, salt air, de-icing salt, wastewater, chemical areas

IP66 is a different test: an IEC 60529 code for dust-tight and powerful water jets that says nothing about corrosion, ice or gaskets. NEMA's own table shows Types 4 and 4X meeting or exceeding IP66, not the reverse. NEMA 4 vs 4X vs IP66, compared.

By footprint

Every size, grouped by height × width

Footprint (H × W)Depths in 304Depths in 316LSheetLatching
6 × 4 in4 in4 in1.2 mmQuarter-turn latch with key
6 × 6 in4 in4 in1.2 mmQuarter-turn latch with key
8 × 6 in4 in4 in1.2 mmQuarter-turn latch with key
8 × 8 in4 in4 in1.2 mmQuarter-turn latch with key
10 × 8 in4 in 6 in4 in 6 in1.2 mmQuarter-turn latch with key
12 × 10 in6 in 8 in6 in 8 in1.2 mmQuarter-turn latch with key
12 × 12 in6 in6 in1.2 mmQuarter-turn latch with key
14 × 12 in6 in 8 in6 in 8 in1.2 mmQuarter-turn latch with key
16 × 12 in6 in 8 in 10 in6 in 8 in 10 in1.5 mmQuarter-turn latch with key
16 × 14 in6 in 8 in6 in 8 in1.5 mmQuarter-turn latch with key
16 × 16 in6 in 8 in6 in 8 in1.5 mmQuarter-turn latch with key
16 × 20 in6 in 8 in 10 in6 in 8 in 10 in1.5 mmQuarter-turn latch with key
20 × 16 in6 in 8 in 10 in6 in 8 in 10 in1.5 mm2 quarter-turn latches, top one keyed
24 × 16 in8 in 10 in8 in 10 in1.5 mm2 quarter-turn latches, top one keyed
20 × 20 in6 in 8 in 10 in 12 in6 in 8 in 10 in 12 in1.5 mm2 quarter-turn latches, top one keyed
20 × 24 in8 in8 in1.5 mm2 quarter-turn latches, top one keyed
24 × 20 in6 in 8 in 10 in 12 in6 in 8 in 10 in 12 in1.5 mm2 quarter-turn latches, top one keyed
24 × 24 in6 in 8 in 10 in 12 in6 in 8 in 10 in 12 in1.5 mm2 quarter-turn latches, top one keyed
30 × 20 in8 in8 in1.5 mm3-point swing handle with key lock
24 × 30 in8 in8 in1.5 mm2 quarter-turn latches, top one keyed
30 × 24 in8 in 10 in 12 in 16 in8 in 10 in 12 in 16 in1.5 mm3-point swing handle with key lock
36 × 24 in8 in 10 in 12 in8 in 10 in 12 in2.0 mm3-point swing handle with key lock
30 × 30 in8 in 10 in 12 in8 in 10 in 12 in1.5 mm3-point swing handle with key lock
36 × 30 in8 in 10 in 12 in 16 in8 in 10 in 12 in 16 in2.0 mm3-point swing handle with key lock
42 × 30 in10 in10 in2.0 mm3-point swing handle with key lock
36 × 36 in12 in12 in2.0 mm3-point swing handle with key lock
42 × 36 in8 in 12 in8 in 12 in2.0 mm3-point swing handle with key lock
48 × 36 in8 in 10 in 12 in 16 in8 in 10 in 12 in 16 in2.0 mm3-point swing handle with key lock
60 × 36 in12 in 16 in12 in 16 in2.0 mm3-point swing handle with key lock

Each depth links to its product page: price, configuration (empty, IMD mini PC, panel PC door cutout), CAD and the size in detail.

One per footprint

The NEMA 4X footprints, shown in 304

All sizes in the size finder

The shallowest depth of each footprint in 304; every other depth and the 316L version are in the table above.

Buying guides

Ratings, listing and what keeps them.

All guides

Not a standard size?

Your size, material and cutouts, delivered in 10 business days.

Set width, height and depth, the material and the NEMA type in the enclosure builder, or send your drawing. From one piece, anywhere in the world. Counted from your order; for custom work, from your approval of the drawing.

Asked and answered

NEMA 4X enclosures: questions

Is NEMA 4X the same as IP66?

No. They are different tests from different standards. NEMA's comparison shows Types 4 and 4X meeting or exceeding IP66, but an IP66 enclosure is not automatically NEMA 4 or 4X: IP codes say nothing about corrosion, ice or gasket aging, and the NEMA hose test allows no water inside. The full comparison.

Do I need NEMA 4X, or is NEMA 4 enough?

Type 4 covers dust, rain and hose-directed water. Choose 4X when the enclosure will see washdown chemicals, salt air, de-icing salt, wastewater or chemical fumes: it adds the corrosion test. Our standard enclosures are stainless and rated 4X; a NEMA 4 enclosure in powder-coated carbon steel is a custom build.

Do these NEMA 4X enclosures carry a UL listing?

No. They are rated NEMA 4X / IP66 by the manufacturer and are not UL listed. If your inspector or specification requires a listed enclosure, read UL 50E, NEMA 250 and listing before you order.

Which depths can I get?

4, 6, 8, 10, 12, 16 in, depending on the footprint (table above). Usable depth from the mounting panel to the closed door runs from about 84 to 388 mm; each product page checks your deepest device against it.

Does a cutout or cable gland keep the 4X rating?

Only if every fitting carries at least the same type rating and is installed as its maker specifies: the assembled rating is limited by the weakest fitting. Place glands, operators and windows in the cutout designer and we cut them.