NEMA Enclosures

Promark represents an extensive line of NEMA 4X custom-made-to-order polycarbonate enclosures and custom thermoplastic enclosures. This product line is unlike any other in today’s market. Superior design and durable polycarbonate material combine to produce a rugged enclosure that seals tight, supports easy component installation, and looks great!

NEMA Enclosures


UL / c-UL Listed
NEMA 4X, 6P, 12, 13 & Marine Use
Patent No. 6,604,798
CE & IP 66/68 Protection
ATEX (contact factory)

State-of-the-art-technology and proven designs guarantee that each of the three thermoplastic enclosure lines available offers a wide variety of types, enclosure sizes, accessories, and configurations. Built for use in any application requiring enclosures which are non-corrosive, non-conductive, easy to install, and modify, they are also competitively priced.

Polycarbonate Applications:

  • All Industries – Remote Monitoring
  • Solar & Wind Energy Systems – Connection Points and Panels
  • Water/Wastewater Treatment – Monitoring
  • Sprinkler Systems – Controls
  • Electrical Construction – Internal or External
  • Telecommunication – Internal or External
  • Marine & Marina – Monitoring
  • HVAC – Controls
  • Car Wash – Controls and Relays
  • Instrumentation – Monitoring
  • Utility – Panels/Junctions/Outlets
  • Machine Building – Interface
  • Oil & Gas – Controls and Monitoring
  • Pharmaceutical and Food & Beverage – Controls and Monitoring

Variety of Accessories:

  • Back Panels
  • Face Plates
  • Height Adjustment Kits for Back Panels
  • Cord Grips
  • Hole Plugs
  • Pole Mounts
  • Mounting Feet
  • Flange Kits
  • Din Rails

Electrical and electronic component enclosures have to be weatherproof, protecting their contents successfully no matter what their indoor or outdoor environment. These sturdy enclosures are tested rigorously, and have superior corrosion resistance, are impact-resistant, watertight, and will not fade from constant exposure to ultraviolet waves, maintaining their robust appearance.

NEMA Enclosure Impact Face Plate Kit Assembly and Impact Swing Panel Kit Assembly

Premium, Impact, and Genesis Lines available.

Polycarbonate versus Fiberglass

Which has the Better Rating?

Feature Polycarbonate Fiberglass Comment
Impact Resistance Yes No The Tensile Strength of Polycarbonate is 900 in/lb, versus the Tensile Strength of Fiberglass, which is 222 in/lb. Polycarbonate has approximately 4X the impact resistance of Fiberglass.
Weight Yes No Polycarbonate is up to 40% lighter than Fiberglass, saving on shipping and promoting ease of installation.
UV Resistance Yes No UV inhibitors are part of Polycarbonate’s injection mold formulation, versus an additive to the shield coating on Fiberglass.
Ease of Modification Yes No Polycarbonate is easy to modify and leaves a clean, smooth surface during machining. Fiberglass is hard on tools, often chips, and produces a problematic dust.
Eco-Friendly Yes No Polycarbonate is recyclable. Fiberglass is not.
Damage from Shipping & Handling Yes No Polycarbonate is durable and not easily damaged. Fiberglass is very brittle.
"The best way I can say it is that working with Promark is like having another Commodity Manager on staff - without the cost of actually hiring one!"
"I'd say you'd saved us, at a minimum, over 3,000 hours of engineering time on our 1st project."
"All in all, our relationship with you has proven to be one of the most valuable in my experience...I would recommend your services to any company looking to improve their supply chain and lower their total cost."
"You have a lot to offer a customer. Product knowledge, technical resources that are cutting edge, and the ability to bring on new principals with the same attributes helps companies like mine save money, and remain leaders in our industry. It's the capability that creates a successful relationship."

Contact Us Today!

Our dedicated Sales Team is ready to bring the solution that works for you. From concept to production, you’ll have the right fit for your business needs and applications every step of the way.