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Watertight Protection

NEMA 4 Electrical Enclosures

Bison Profab can manufacture NEMA 4 electrical enclosures in sizes ranging from small wall mounts to two-door floor mount models from a variety of metals depending on your specific application. NEMA 4 enclosures are used for the most sensitive of electrical equipment because of their outstanding protection from the elements. NEMA 4 enclosures are often called rain tight enclosures due to their excellent weather resistance.

NEMA 4 boxes provide a watertight protection against splashing water, indoor wash down from a commercial hose as well as ingress protection from dirt, rain, sleet, snow, ice and windblown dust. If your enclosure is to be used in a corrosive environment you will need to upgrade to a NEMA 4X enclosure most likely fabricated from aluminum or 316 stainless steel.

NEMA 4 enclosures are generally gasketed with doors that clamp to provide a maximum seal. They can also be equipped with continuous hinges, mounting feet, and padlock hasps.

Create a Custom Enclosure

If you don't see what you need here, please contact our team for a custom quote.

Custom NEMA 4 Accessory Options 

  • NEMA 4 "wash-down" rated fan assemblies
  • Thermostats
  • Heaters
  • A/C units with NEMA 4 ratings
  • Viewing windows
  • Casters
  • Leveling feet
  • Fuse blocks
  • Power panels
  • Lights
  • Switches

Each NEMA 4 enclosure comes with Bison ProFab’s promise of smooth implementation without the need for unnecessary job site amendments. Our enclosures not only do the job; they make the job easier.

Not sure which steelstainless steel or aluminum NEMA 4 enclosure to choose? Consult our applications experts

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