NEMA 4 Enclosures & Boxes

NEMA 4 enclosures and boxes are used primarily for protecting electrical equipment in indoor environments.

What Is a NEMA 4 Enclosure Rating?

NEMA is a rating system for equipment that might be exposed to liquids, rain, ice, corrosion, and contaminants such as dust.

Type 4 NEMA Enclosure is Intended for indoor use primarily to provide a degree of protection against windblown dust and rain, splashing water, and hose-directed water; undamage by ice which forms on the enclosure.

NEMA 3 Enclosure

A Nema 4 Enclosure For Your Application

Some of the basic types of nema 4 electrical enclosures that you’ll find on the market today include:

Features of Nema 4 Enclosure

  • Indoor and Outdoor Use: NEMA 4 enclosures are ideal for both indoor and outdoor use, offering reliable protection against water, dust, and other environmental threats.
  • Waterproof Design: These enclosures are intended to prevent water infiltration from hose-directed spray, splashing water, and external condensation, guaranteeing the integrity of the contained equipment.
  • Construction : Typically made of corrosion-resistant materials like stainless steel or fibreglass, which provide durability and protection against severe conditions.
  • Gasket Sealing: NEMA 4 enclosures use gasket sealing to keep a watertight seal and prevent water entry.

Advantages And Disadvantages For NEMA 4 Enclosure

Avantages

  • Weather Protection: Provides dependable protection from a wide range of exterior factors, including windblown dust, rain, sleet, and external ice development.
  • Durable Construction: Made from high-quality materials that can resist external conditions and provide long-term protection for enclosed equipment.
  • Versatile Options: Available in a range of sizes and configurations to suit various types of equipment and installation needs.

Inconvénients

  • Cost: Because NEMA 4 enclosures have better waterproofing and corrosion-resistant characteristics than lower-rated enclosures, they may be more expensive.
    Installation
  • Considerations: Ensuring the watertight seal of the enclosure and its defence against environmental risks depend on a correct installation.

Custom Your NEMA 4 Enclosure

We provide personalized solutions to match your exact needs, ranging from custom sizes and materials to specialized features and branding. 

Apprenez à sélectionner la taille et le matériau adaptés à vos besoins. Contactez-nous pour plus d'informations !

Comparison with Other NEMA Ratings

  • NEMA 3R:  NEMA 3R is similar to NEMA 3 but with lower windblown dust protection standards. Suitable for outdoor usage, however, dust protection may not be as effective.
  • NEMA 4X: Provides protection against splashing and hose-directed water, and is ideal for both indoor and outdoor usage.
  • NEMA 6: Suitable for uses when equipment may be subjected to extended water immersion, designed for brief submersion in water.
  • NEMA 12: Protects against dust, grime, and non-corrosive liquid spills, making it ideal for industrial applications.