NEMA 12 ENCLOSURES


TYPE 12 DEFINITION PER NEMA 250 STANDARD

Definition: Type 12 Enclosures: 

  1. To be constructed (without knockouts) for indoor use to provide a degree of protection to personnel against access to hazardous parts. 
  2. To provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt and circulating dust, lint, fibers, and flyings) 
  3. To provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (dripping and light splashing).  

General Notes: Type 12 Enclosures are very similar to the Type 4 rating in terms of protection. They both provide the almost same standard level of ingress protection except the NEMA 4 rating provides the additional protection of wash down resistance to hose directed spraying water.

NEMACO™ OFFERS SEVERAL TYPES OF NEMA 12 ELECTRICAL ENCLOSURES

Wall Mount Enclosures

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Floor Mount Enclosures

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Free Standing Enclosures

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JIC - Junction box Enclosures

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Mobile Wheels Enclosures

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SCADA Enclosures

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Double Bay (Doors) Enclosures

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COMMON MATERIALS & PROTECTIVE COATINGS

POWDER COATED CARBON STEEL

Carbon steel NEMA 12 enclosures must be protected with powder coated finishes or epoxy paints for corrosion resistanceNEMACO™ offers NEMA 12 Enclosures made from premium carbon steel with durable powder coated finishes. Other metal coatings (wet paints, marine epoxies) are available on request.

ALUMINUM & STAINLESS STEEL – MATERIAL UPGRADES

In order to better serve customers, NEMACO™ offers material upgrades that include powder coated aluminum and to 304 stainless steel for more corrosion resistance. Additional corrosion resistance can be obtained by requesting a 316 stainless steel upgrade that includes passivation cleaning. Stainless steel passivation is a process to remove and clean residual oxidation caused by welding stainless steel. 

For customers working on special projects, they can send an email to NEMACO™ 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.

FILTERED AIR & AIR CONDITIONING OPTIONS

Filters and fans can be added to Type 12 enclosures whereby the fans and filters are protected from dripping and light splashing of water or oils. Sometimes Type 12 cabinets are used near machinery or other equipment that might be using coolant or cutting fluids for machining metals

NEMA 12 ENCLOSURES SUMMARY

NEMACO™ offers NEMA 12 electrical enclosures ranging from the wall mount, floor mount, freestanding designs to custom cabinet configurations. The cabinets can be used for indoor or outdoor environments. Type 12 products are designed to provide protection from dust, falling dirt, windblown dust/dirt and dripping from leaking pipes for indoor or outdoor locations. Type 12 enclosures and cabinets are commonly 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.    

  • Indoor resistance to 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 (Material Grades HR / CRS) – Strong & Durable  
  • Powder Coated Aluminum (Material Grades 5052, 6061) – Low Weight   
  • Stainless Steel (Material Grades 304/316) – Strong, Durable, Corrosion Resistance 

Call NEMACO™ for powder-coated carbon steel NEMA 12 cabinets. 

We usually use NEMA 12 cabinets for indoor applications because of their environmental protection characteristics. Type 12 rated enclosures provide a degree of protection against the following: falling dirt and circulating dust. NEMACO™ manufactures using a NEMA standard to ensure that our customer will get quality enclosures. Furthermore, NEMA 12 gaskets are designed and tested to protect against oil and coolant seepage 

TYPE 12 ENCLOSURES - GENERAL FEATURES:

  • For indoor protection from incident contact to hazardous parts from solid foreign objects, such as falling dirt, windblown dust. 
  • It gives protection against ingresses of water and other noncorrosive liquid, such as dripping and light splashing. 
  • These steel enclosures also provide protection against oil and coolant percolation. 

For more types of NEMA enclosure that NEMACO™ offer, please follow links below.

NEMA 3R Enclosures
NEMA 4 Enclosures
NEMA 4X Enclosures
NEMA 6 Enclosures
NEMA 6P Enclosures