NEMA 4X Electrical Enclosure
Our NEMA 4X enclosures are designed to offer superior protection against water ingress, dust, and chemical corrosion, making them ideal for harsh outdoor or industrial environments. Whether you need stainless steel control boxes for marine facilities or lightweight plastic junction boxes for food processing plants, we provide durable, customizable solutions.
All our enclosures comply with NEMA 4X and IP66 standards, ensuring full protection against water jets, UV exposure, and salt fog. OEM services including cutouts, silk-screen logo printing, and mounting accessories are available to meet your engineering project needs.
Applications include wastewater treatment plants, offshore oil rigs, chemical factories, solar installations, and more.
NEMA 4X Rated Electrical Enclosures
Our enclosures are specifically engineered to protect sensitive electrical components in the toughest industrial environments—providing watertight, dustproof, and corrosion-resistant performance in both indoor and outdoor applications.
Custom Enclosures for Your Specifications
Hofengfab manufactures quality custom and standard NEMA-rated enclosures. Our enclosures can be enhanced by silk-screening, passivation and electro-polishing services.
Contact us today to learn how we can expedite a custom enclosure and produce cost-effective standard NEMA-rated enclosures to protect your equipment.
업계 표준을 충족하고 NEMA 등급에 따른 환경 등급을 유지하도록 제조되었습니다. 1대부터 주문 가능하며 납기 기간이 짧아, 고객님의 독자적인 설계 구현을 도와드릴 수 있습니다.
이메일 문의：vivian@hofengfab.com
NEMA 4X Rated Electrical Enclosures for Harsh Environments
Waterproof, Corrosion-Resistant, UL-Compliant Enclosures for Outdoor and Industrial Use.
| 항목 | 상세 정보 |
| Standard | NEMA 4X / UL 508A Ready |
| 소재 옵션 | Stainless Steel 304 / 316, Polycarbonate, FRP |
| Ingress Protection | IP66 (Equivalent to NEMA 4X) |
| Temperature Range | -40°C to +85°C |
| Mounting | Wall Mount / Pole Mount / Panel Mount |
| 사용자 지정 | Drilling Holes, Cutouts, Silk Printing, Gaskets |
| 색상 | Metallic / Grey / Customized |
| 치수 | From 150x150mm to 800x1200mm (Custom Available) |
| Accessories | Mounting Brackets, Cable Glands, DIN Rails |
설계, 성형, 사출 성형을 아우르는 원스톱 서비스.
맞춤 제작 서비스
벤딩, 레이저 절단, 브러시 용접, 연마, 스탬핑 등을 포함한 정밀 판금 가공을 전문으로 합니다.
정시 배송.
프로토타입 제작은 대개 10일 이내에 완료됩니다.
표준 생산 소요 기간은 제품 수량과 복잡성에 따라 약 15일 정도 소요됩니다.
자주 묻는 질문
What is a NEMA 4X enclosure?
A NEMA 4X enclosure is a type of electrical enclosure rated by the National Electrical Manufacturers Association (NEMA) to provide protection against dust, water (including hose-directed spray), and corrosion. It is specifically designed for outdoor and harsh environments, including marine, chemical, and food processing facilities.
What is the difference between NEMA 4 and NEMA 4X?
While both NEMA 4 and NEMA 4X enclosures are resistant to dust, rain, and water spray, NEMA 4X adds protection against corrosion. This makes NEMA 4X more suitable for coastal environments, chemical plants, or food processing lines where exposure to corrosive elements is likely.
🧪 Expert Tip: Choose NEMA 4X if your enclosure will be exposed to salt spray, harsh cleaners, or acids.
Is NEMA 4X equivalent to IP66?
Not exactly, but they are functionally similar. NEMA 4X and IP66 both offer protection against dust and powerful water jets. However, NEMA 4X also includes corrosion resistance, which IP66 does not explicitly cover.
📘 Trustworthy Info: IP ratings are governed by IEC (International Electrotechnical Commission), while NEMA ratings follow U.S. standards. When exporting internationally, it’s good practice to list both.
Are NEMA 4X enclosures suitable for hazardous locations?
Not by default. NEMA 4X only covers environmental protection, not explosion protection. For hazardous areas (Class I, Division 1 or 2), look for NEMA 7/9 or ATEX-certified enclosures.
⚠️ Safety Note: Always consult a qualified engineer or local electrical code before specifying enclosures for hazardous zones.
Where are NEMA 4X enclosures used?
They are widely used in:
Food and beverage processing plants
Pharmaceutical manufacturing
Water and wastewater treatment facilities
Marine and offshore installations
실외용 제어반
Car wash and washdown environments
🔎 Authority Source: UL and OSHA often reference NEMA 4X as suitable for hygienic and corrosive environments.
Do NEMA 4X enclosures require UL certification?
Not always, but UL listing or certification is often required by local electrical codes, contractors, or industrial buyers in North America. If you’re supplying enclosures to a UL 508A control panel manufacturer, UL-recognized components are usually a must.
✅ Trust Signal: Our NEMA 4X enclosures are UL Recognized, RoHS-compliant, and manufactured under ISO-certified processes.
What is the temperature range for NEMA 4X enclosures?
Typical operational temperature ranges vary by material:
Stainless steel: -40°C to +85°C
Polycarbonate: -40°C to +120°C (short term)
FRP: -50°C to +130°C
🌡️ Trustworthy Advice: Always verify thermal and UV performance with the manufacturer for outdoor or high-temperature applications.
어떤 IP 등급을 확인해야 할까요?
IP54 – 먼지와 가벼운 물보라
IP65 – 방진 및 방수 기능
IP67 – 방진 기능이 있으며, 최대 1미터 수심에서 30분간 침수 가능
비, 먼지, 또는 물에 잠기는 상황에 따라 선택하십시오.