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NEMA 4 Enclosure

NEMA 4 Enclosure

Detailed Specifications

Parameter

Specification

Product Series

NEMA 4 Enclosure / Industrial Protective Electrical Enclosure

Environment

Designed for harsh indoor and outdoor environments with superior weatherproof and dustproof performance

Dimensions

Available in standard sizes and custom designs to fit diverse control and electrical systems

Material

Premium steel or aluminum alloy for high impact resistance and durability

Protection Rating

Equivalent to IP66 (completely dust-tight and protected against powerful water jets)

Key Features

Weatherproof sealed design, secure locking system, high-temperature and impact-resistant construction

Process

Laser Cutting

Laser Cutting

Dedicated nitrogen cutting ensures zero oxidation layer on every workpiece.

CNC Bending

CNC Bending

Advanced equipment guarantees precision at every step.

Automated Welding

Automated Welding

Standardized welding robots deliver 10x manual efficiency with higher, more stable quality.

Surface Finishing

Surface Finishing

Options include as-machined, coating, surface treatment, heat treatment, and custom finishes.

Custom Logo

Custom Logo

Customer-supplied logos can be printed directly on product surfaces.

Learn More

F.A.Q

01

What information is required for customizing and accepting NEMA enclosures?

Provide installation location, temperature range, dust type, water source and pressure, oil/coolant specs, corrosive media, submersion depth and duration, enclosure dimensions, internal equipment, door cutouts, cable entry direction, and material/finish specifications.

02

Are NEMA enclosures explosion-proof, corrosion-resistant, or completely waterproof?

No. NEMA ratings define protection scopes against specific environmental factors. They do not automatically grant explosion-proof certification, universal chemical compatibility, total waterproofing, continuous submersion, or high-pressure washdown capability.

03

How to choose between NEMA 4 and NEMA 6?

NEMA 4 handles rain, windblown dust, splashing, and specified hose-directed water. NEMA 6 adds limited-depth submersion under specified conditions. The key differentiator is whether floodwaters might rise above the enclosure base or door frame for a sustained period.

04

What is the difference between NEMA 4 and NEMA 4X?

NEMA 4 protects against windblown dust, rain, snow, splashing, and hose-directed water. NEMA 4X adds corrosion resistance, making it suitable for coastal, high-humidity, chemical, wastewater, food processing, and washdown environments using cleaning agents.

05

How do NEMA 3, NEMA 3R, and NEMA 4 differ?

Both NEMA 3 and 3R are designed for outdoor rain, sleet, snow, and external icing. NEMA 3 also provides windblown dust protection, whereas NEMA 3R primarily resists rain, snow, and ice without windblown dust protection as a key capability.

06

What is the difference between NEMA 1, NEMA 5, and NEMA 13?

NEMA 1 is for general indoor use, focusing on personnel protection and basic falling-dirt protection. NEMA 5 targets indoor dust, dirt, and dripping non-corrosive liquids. NEMA 13 addresses oil, coolant, oil mist, and splashing near machine tools and industrial equipment.

07

Can NEMA types and IP ratings be converted directly?

No direct 1:1 conversion exists. NEMA types cover solid foreign objects and water ingress, plus windblown dust, oil, coolant, external icing, corrosion resistance, and limited-depth submersion. IP ratings classify only solid foreign object and water ingress protection.

08

How to choose the right NEMA enclosure for site conditions?

Confirm five factors when selecting: installation location, primary contaminants, water sources, presence of corrosive media, and potential submersion risk.

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