NEMA 4 ENCLOSURES


Free standing NEMACO™ NEMA 4 enclosure with sun shield

Free standing NEMACO™ NEMA 4 enclosure with sun shield

TYPE 4 DEFINITION PER NEMA 250 STANDARD

Definition: NEMA 4 Enclosures provide protection against solid objects such as falling dirt, circulating dust, airborne dust, and windblown dust. Similarly, they give the same level of protection against ingress of water, dripping, light splashing, splashing and hose down (directed) water. Generally, they are constructed for either indoor or outdoor uses.

General Note: NEMA 4 Enclosures are very similar to NEMA 4X Enclosures in terms of protection. They both provide the almost same standard level of ingress protection except the NEMA 4X rating requires more material corrosion resistance.

TYPE 4 ENCLOSURES - Summary

  • 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.
  • Powder coat finishes for surface protection.

NEMACO™ Offers Several Types of NEMA 4 Electrical Enclosures

Wall Mount Enclosures

Floor Mount Enclosures

Mobile Wheels Enclosures

Double Doors Enclosures

Climate Control Enclosures

COMMON MATERIALS & COATINGS

POWDER COATED CARBON STEEL

NEMACO™ offers NEMA 4 Enclosures made from premium grades of carbon steel with oven baked & durable powder coated finishes. Our standard door handles and door turn knobs are powder coated. But customers can request upgrades to stainless hardware with other interesting features.

ALUMINUM & STAINLESS STEEL – MATERIAL UPGRADES

In order to better serve customers, NEMACO™ offers material upgrades to include powder coated aluminum and to 304 stainless steel for more corrosion resistance. For customers requesting stainless steel with additional corrosion resistance, then customers can request a materials upgrade to 316 stainless steel with passivation. Stainless steel passivation is a process to remove and clean residual oxidation from welding and stainless steel contamination. 

For customers working on unique projects, they can send an email to us for assistance and we can possibly offer new “out of the box” solutions. Call NEMACO™ if you have any questions about material selection or cabinet selection for industrial applications.

TYPE 4 ENCLOSURES - SUMMARY

NEMACO™ offers NEMA 4 electrical enclosure products with a full range of wall mount, floor mount, free standing cabinet, and custom configurations. The enclosures can be used for indoor or outdoor environments. The products are designed to provide protection against hose directed spray wash-down, rain, snow, ice, falling dirt, windblown dust/dirt and dripping from leaking pipes for indoor or outdoor locations. Type 4 Enclosures are typically powder coated steel and therefore provide fair corrosion with a powder coat finish. For customers needing more corrosion resistant then they should consider using (304 / 316L) stainless steel instead.    

  • 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. 
  • Powder Coated Carbon Steel (HR / CRS) – Strong & Durable  
  • Powder Coated Aluminum (5052, 6061) – Low Weight   
  • Stainless Steel (Material Grades 304/316) – Strong, Durable, Corrosion Resistant  

Call NEMACO™ for powder-coated carbon steel NEMA 4 enclosures and cabinets for your projects. 

FeaturesDetails
Minimum/Maximum Height24"/66"
Minimum/Maximum Width24"/24"
Minimum/Maximum Dept24"/42"
Size Range
depend on Enclosure type
• 24" x 24" x 24"
            TO
• 66" x 24" x 42"
Air condition• 1000 BTU NE010126-04 (30 lbs)
                          TO
• 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
       TO
• 69 X 21
Custom options• ROXTEC™ seal solutions
• NPT fittings
• GND studs
• Lexan Window
• Sun Shield
• Coupling
• Thru Hole

Follow links below for more different types of NEMA enclosure from NEMACO™ that give different protection degree
NEMA 3R Enclosures
NEMA 4X Enclosures
NEMA 6 Enclosures
NEMA 6P Enclosures
NEMA 12 Enclosures