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NEMA 4エンクロージャーメーカー

Hofengfab is a leading manufacturer of electronics enclosures and industrial enclosures for a variety of applications. We offers a wide range of NEMA 4 electrical enclosures in various sizes—from small to large—to meet diverse application needs. Our enclosures are available in multiple materials, including plastic, aluminum, steel, and stainless steel. We provide a variety of types such as wall-mounted, free-standing, and JIC models. NEMA 4 boxes styles include hinged enclosures, junction boxes, pole-mount options, and more, making it easy to find the perfect NEMA 4 solution for your environment.

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NEMA 4 electrical enclosures

Our NEMA 4 enclosures meet the diverse needs of OEMs, control panel builders, and electrical contractors worldwide.We provide a wide range of enclosures : Plastic enclosure, Handheld enclosure, Aluminium enclosure, Diecast aluminium box, Stainless steel box, IP67 waterproof enclosure, Junction box, 19"rack mount enclosure, etc…

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Nema 4エンクロージャ防水
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屋外用Nema 4エンクロージャ
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Nema 4エンクロージャ・プラスチックボックス
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NEMA 4ジャンクションボックス
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NEMA 4 enclosure with ventilation
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DIN レール付き NEMA 4 エンクロージャ
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工業用NEMA 4エンクロージャ
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透明カバー付きNEMA 4エンクロージャー
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custom NEMA 4 enclosure

At Shenzhen Hofengfab, we specialize in manufacturing custom NEMA 4 enclosures that offer reliable protection against water, dust, and harsh environmental conditions. Whether you need a small wall-mounted control box or a large free-standing stainless steel cabinet, our team can design and fabricate enclosures tailored to your specific requirements — including custom dimensions, cutouts, mounting brackets, and labeling.

With over 15 years of fabrication experience and a fully equipped ISO 9001-certified facility in Shenzhen, we serve OEMs and industrial clients across North America, Europe, and the Middle East. We guarantee fast prototyping, flexible order quantities, and competitive pricing.

メールでのお問い合わせvivian@hofengfab.com

Applications

Our NEMA 4 enclosures are trusted in a wide range of environments, including:

  • Factory automation & machine control

  • Outdoor electrical installations

  • Water treatment facilities

  • Food & beverage processing

  • Renewable energy systems

  • Telecommunications infrastructure

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設計、成形、射出成形のワンストップサービス。

即時見積もり

カスタム製作サービス

曲げ加工、レーザー切断、ブラシ溶接、研磨、プレスなどの精密板金加工を専門とする。

オンタイム・デリバリー。

プロトタイピングは通常10日以内に完了する。
標準的な生産リードタイムは、製品の数量や複雑さにもよりますが、約15日です。

関連商品

産業オートメーション、テレコム/ラックマウントシステム、再生可能エネルギー、医療機器、軍事/航空宇宙アプリケーションなどの産業向けに、信頼性を追求した堅牢で用途に特化したハウジングソリューションを提供しています。

NEMA 4 Enclosures插图13

壁掛け電気エンクロージャ

詳細はこちら
NEMA 4 Enclosures插图14

サーバーラックキャビネット

詳細はこちら
NEMA 4 Enclosures插图15

電気ジャンクションボックス

詳細はこちら
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産業用エンクロージャー

詳細はこちら

よくあるご質問

A NEMA 4 enclosure is a type of protective enclosure rated by the National Electrical Manufacturers Association (NEMA) to provide protection against windblown dust, rain, splashing water, and hose-directed water. It is commonly used for industrial control panels, electrical junction boxes, and outdoor equipment where environmental resistance is critical.

Both NEMA 4 and NEMA 4X enclosures offer the same level of protection against water and dust. However, NEMA 4X 加筆 corrosion resistance, making it more suitable for outdoor, marine, or chemical processing environments.

特徴NEMA 4NEMA 4X
Waterproof✅✅
Dustproof✅✅
Corrosion resistant❌✅ (e.g., stainless steel)
Outdoor-rated✅✅

 

Shenzhen Hofengfab manufactures NEMA 4 enclosures using:

  • Plastic (ABS / Polycarbonate) – Lightweight, non-conductive, good for indoor use.

  • Carbon Steel (Powder-Coated) – Cost-effective for general industrial applications.

  • 304 / 316 Stainless Steel – Offers excellent corrosion resistance for outdoor or food-grade use.

  • アルミニウム – Lightweight and corrosion-resistant, ideal for marine or telecom applications.

Yes. NEMA 4 enclosures are rated for protection against hose-directed water, splashing, and limited ingress during heavy rain or washdowns. While not submersible (like NEMA 6P), they are IP66-equivalent, making them suitable for most wet industrial or outdoor conditions.

Absolutely. NEMA 4 enclosures are designed for outdoor use and are commonly used in HVAC controls, solar installations, traffic systemsそして outdoor electrical boxes. For areas with high salt or chemical exposure, we recommend NEMA 4X stainless steel enclosures.

Yes. NEMA 4 enclosures are approximately equivalent to IP66, which means:

  • 6 = Dust-tight (no ingress of dust)

  • 6 = Protected against powerful water jets from any direction

Yes. At Shenzhen Hofengfab, we specialize in custom NEMA 4 enclosures, offering:

  • Custom dimensions and depths

  • Pre-drilled mounting holes or cutouts

  • HMI windows, vents, latches, and cable glands

  • Internal accessories: DIN rails, backplates, terminal blocks

Upload your CAD drawing or request our engineering support to begin a custom design.

Yes. Our enclosures are manufactured in accordance with NEMA 250規格 and can be produced to meet:

  • UL 508A (for industrial control panels)

  • CE compliance

  • RoHS directive

  • IP66 rating (tested to IEC 60529)

Certification documentation is available upon request.

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