Weatherproof cabinets and enclosures by Nemaco

ul listed approved for nemaco nema type 4x enclosure cabinets boxes
NEMA 4X Enclosure Rack server cabinet with window

Nemaco offers you our NEMA 4x enclosure series for industrial applications for protecting and housing electrical components in the both indoor and outdoor environment. We manufacture NEMA 250 type 4x electrical enclosures follows National Electrical Manufacturer Association(NEMA) standards to ensure quality to our customers. These enclosure series provide corrosion resistance,  stainless steel is more commonly used to fablicate these cabinets in industrial application. Sometimes fiberglass (FRP) or plastic materials might be used in small enclosures, junction boxes or pull boxes for nema 4x. However, plastic might not be as strong as metal in extreme environments, therefore aluminum and powder coated steel are also offer as options. As a general rule, most industrial customers prefer stainless steel since the materials are corrosion resistant and rugged. We also manufacture stainless stee enclosures in many designs. These nema 250 type 4x, sometimes are considered as weatherproof boxes.


Definition: NEMA 4X rating enclosures protect your application from solid objects such as falling dirt, circulating dust, airborne dust, and windblown dust. Similarly, they give protection against ingress of water such as dripping, light splashing, splashing and hose down (directed) water. Per NEMA 250, type 4x boxes provide corrosion resistance.

Designs of Nemaco's NEMA 250 Type 4x Electrical Enclosures

Wall Mount

Floor Mount

Mobile Wheels

Double Bay (Doors)

Climate Control


To pass NEMA 4x rating criteria of UL 50, 50E & NEMA 250 Ratings, enclosures and cabinets need to give protection against hose directed water from fire hose at 65 gal. or 246L / minutes must result no water inside and corrosion testing from Salt Spray at 200 hrs.

Nemaco ensures customer, each of our nema 4x products has been tested in simutalting environment and meet the requirement for protection decribed above.

Alternate Material and Coatings

Nemaco manufactures type 4x enclosures primarily with quality grades of stainless steel, that provides protection from corrosion. Because the characteristic of stainless steel is not corrosive. However, stainless steel is a heavy material, therefore, we offer other materials that approximately comparative to be NEMA 4x rating (protect from corrosion), powder coating carbon steel and aluminum for corrosion protection as an option for your applications.

Each of the ferrous and non-ferrous raw materials has specific and unique qualities that make an enclosure optimum based on the application, therefore the different materials show several characters and capabilities that make enclosures unique and specifically suited for certain environments and applications.

NEMA 4X Enclosure Stainless Steel

Our stainless steel enclosures for industrial applications are used for control panels, distribution cabinets, and other SCADA applications in both 304 and 316 ss. Nemaco offers type 4x electrical enclosures manufactured per NEMA (National Electrical Manufacturer Association) standards to ensure top quality to our customers.


As mentioned in the previous information, stainless steel is the first choice by engineers and maintenance crews for industrial

Nemaco Powder coated Aluminum NEMA 4X Enclosure

Nemaco Powder coated Aluminum NEMA 4X Enclosure

cabinets and other industrial applications. Nemaco offers both stainless steel and powder coated aluminum as solutions. Some customers prefer powder coated aluminum instead of stainless steel. Aluminum has much lower weight and therefore is much easier to transport and carry by work crews. 

  • Powder Coated Aluminum (5052, 6061) – Low Weight, Mild Corrosion Resistant 
  • Stainless Steel (Material Grades 304/316) – Strong, Durable, Corrosion Resistant


  • Stainless Steel (Material Grades 304/316) – Strong, Durable, Corrosion Resistant  
  • Powder Coated Aluminum (5052, 6061) – Low Weight, Mild Corrosion Resistant 
  • FRP (fiberglass reinforced plastic) – Low Weight, Mostly small junction boxes 

We manufacture electrical enclosures from top-grade carbon steel, Aluminum and we can customize enclosures according to a customer’s specifications. We have a lot of features you can add to the enclosure such as footings, air condition, sun shield, windows and many more. Please check for more information in a table in the last section of this page.

NEMACO Stainless steel NEMA 4X floor mount enclosure
19" NEMA 4X Server Rack Cabinet
NEMA 4 Rack Server Cabinet mobile unit with air conditioner

NEMA 4X Enclosures Summary

These NEMA 250 type 4x rating enclosures require to be corrosion resistant, heavy water spray down resistant and dust resistant. The enclosures can be used for both indoor and outdoor environments, considered as weatherproof enclosures and cabinets.

Nemaco offers the enclosures in (304 / 316L) stainless steel and powder-coated aluminum. Call us for powder coated aluminum and chemically passivated stainless steel enclosure solutions for your projects. 

  • Outdoor protection from hose directed water, rain, ice formation, foreign substances and windblown dust (airborne circulating dust and settling particles). 
  • Indoor protection from falling dirt and dripping water from pipes. 
  • Provides protection for electrical equipment from incidental contact. 
  • Additional protection is corrosion. 
Minimum/Maximum Height24"/72"
Minimum/Maximum Width24"/24"
Minimum/Maximum Dept24"/42"
Size Range
depend on Enclosure type
• 24" x 24" x 24"
• 72" x 24" x 42"
Air condition• 1000 BTU NE010126-04 (30 lbs)
• 6000 BTU NE060126-04 (121 lbs)
19" Server rack railAvailable call us for detail
Powder coating colors• White
• Light Gray
• Dark Gray
• Black
Footings• 8” footing
• 12” footing
Material• Carbon steel
• Aluminum
• Stainless Steel
Insulation• 1/2” thickness
• 3/4” thickness
Handle• Key locked handle
• Pad locked Handle
Interior Panel - Options• Aluminum(non coated)
• White Powder Coated Steel
• 304 Stainless (2B Finish)
Interior Panel - Size Range• 21" X 21"
• 69" X 21"
** To calculate maximum interior panel size for your cabinet
panel size = cabinet size - 3"
Custom options• ROXTEC™ seal solutions
• NPT fittings
• GND studs
• Lexan Window
• Sun Shield
• Coupling
• Thru Hole