EN_US 
RU 
ES 
AR 
FR 
JA 
KO 
PT 
ID 
NEMA 12 Enclosures & Boxes
Engineered for demanding indoor industrial environments, Hofengfab’s NEMA 12 enclosures deliver certified protection against dust, falling dirt, dripping liquids, and light splashes. With over 15 years of experience in industrial enclosure manufacturing, we understand your need for reliable protection, fast lead times, and competitive pricing. NEMA Type 12 enclosures are available in plastic, aluminum or steel in a range of convenient styles and sizes. All NEMA enclosures from Hofengfab undergo testing and certification by UL for guaranteed protection
NEMA 12 Enclosures
Hofengfab specializes in low-volume, high-mix, made-to-order solutions, offering over 1,600 customizable options tailored to your exact specifications—including height, width, depth, material, rating, and certifications. We ensure fast turnaround times, with samples ready in 7–10 working days and mass production completed within 15–25 working days. Whether you need a small batch or a large order, we deliver on time.
Available Sizes & Configurations
From small wall-mounted boxes to large floor-standing cabinets, we offer a range of NEMA 12 enclosures to meet your specifications. Choose from:
Hinged or screw cover designs
Back panels and swing panels
Floor or wall mounting kits
Stainless steel for food-grade environments
Features & Specifications
| Protection Level | Construction | Compliance & Certifications |
| ✔️ NEMA 12 Rated (Dust-Tight, Drip-Proof) | ✔️ Heavy-duty 16-gauge steel | ✔️ NEMA 250 & UL 50 certified |
| ✔️ Resists circulating dust, fibers & coolants | ✔️ Powder-coated finish (standard) | ✔️ CE, RoHS compliant |
| ✔️ Guards against light oil/coolant splashes | ✔️ Welded seams for integrity | ✔️ IP54 equivalent protection |
| ❌ NOT for outdoor/submersion | ✔️ Optional stainless steel | ❌ Not waterproof (use NEMA 4X/6P) |
One-stop service for design, molding, and injection molding.
Custom Fabrication Services
Specializing in precision sheet metal processing, including bending, laser cutting, brushed welding, polishing, stamping, and more.
ON-Time Delivery.
Prototyping typically completed within 10 days.
Standard production lead time is around 15 days, depending on product quantity and complexity.
Related Products
We serve industries including industrial automation, telecom/rackmount systems, renewable energy, medical equipment, and military/aerospace applications - delivering robust, application-specific housing solutions engineered for reliability.
19” rack mount enclosure
Plastic Waterproof Enclosure
Electrical Enclosure Box
FAQ
What is a NEMA 12 enclosure?
A NEMA 12 enclosure is a type of electrical enclosure designed for indoor use in industrial settings. It protects against dust, dirt, lint, fibers, and dripping non-corrosive liquids. These enclosures are commonly used to house control panels, relays, and other sensitive electrical or electronic components.
What is the difference between NEMA 12 and NEMA 4 enclosures?
The key difference lies in water protection:
NEMA 12: Protects against dust and dripping water; suitable for indoor, dry environments.
NEMA 4: Protects against hose-directed water and even occasional submersion; can be used outdoors or in wash-down areas.
If your application involves water spray or outdoor exposure, NEMA 4 is a better choice.
Is a NEMA 12 enclosure waterproof?
No. NEMA 12 enclosures are not waterproof. They are resistant to light dripping or splashing but not designed for high-pressure water or full submersion. For waterproof performance, consider NEMA 4 or 6 enclosures.
Where are NEMA 12 enclosures typically used?
They are widely used in:
Manufacturing plants
Warehouses
Data centers
Food processing (dry areas)
HVAC system control rooms
CNC machine panels
Industrial automation and robotics
Are NEMA 12 enclosures UL Listed?
Yes, most high-quality NEMA 12 enclosures are UL Listed and CSA Certified, ensuring they meet rigorous safety and performance standards. Always verify certifications when purchasing.
Can NEMA 12 enclosures be used outdoors?
No. NEMA 12 is for indoor use only. For outdoor environments, use a NEMA 3R, 4, or 4X enclosure, depending on exposure to weather, wash-down, or corrosive substances.
What materials are NEMA 12 enclosures made from?
Common materials include:
Carbon steel (powder-coated) – Most widely used for general industrial use.
Stainless steel (304 or 316) – Used in environments where hygiene or corrosion resistance is required.
Aluminum or polycarbonate – Less common, but available for lightweight or specialty applications.
Are custom NEMA 12 enclosures available?
Yes. Many manufacturers offer customizable options including:
Size and mounting
Cutouts and knockouts
Painted finishes
Door types (hinged, double-door, locking mechanisms)
Internal mounting panels or DIN rails