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Sheet Metal Enclosure Fabrication For Low Voltage Circuit Breaker

Sheet Metal Enclosure Fabrication For Low Voltage Circuit Breaker

We provide high-precision sheet metal fabrication for low-voltage circuit breaker enclosures. Our core advantage is precision manufacturing; using advanced Trumpf and Amada equipment, we ensure a processing accuracy of ±0.1mm.

 

Our fabrication advantages include 13 automated welding robots for high-consistency welds, with the entire process governed by our strict IATF 16949 quality system for component reliability.

 

We deliver assembly-ready products from our automated powder coating line, capable of C4/C5 high-corrosion protection. This end-to-end quality control is why we are a certified supplier to industry leaders like ABB and Schneider Electric.

  • Material :

    Industrial-Grade Steel (Cold-rolled, Stainless)
  • Thickness :

    2.0mm – 4.0mm (Customizable)
  • Surface Treatment :

    Powder Coating (C4/C5 capable), Electrophoresis, or Galvanizing
  • Process Involved :

    Laser Cutting, CNC Punching, CNC Bending, Robotic Welding

Product Overview

 

This sheet metal frame is the essential structural chassis for low-voltage circuit breakers. It is engineered to provide robust protection for internal components and ensure precise alignment during assembly. Our fabrication process, which includes CNC laser cutting and precision bending, guarantees that every dimension adheres strictly to your technical drawings. This results in a reliable, high-quality component that integrates seamlessly into your power distribution or switchgear systems.

 

Stainless steel electrical enclosure fabrication     Sheet metal fabrication for electrical panels

 

Key Features & Advantages

 

✨ High Customization: We don't offer one-size-fits-all solutions. Whether you require specific dimensions, mounting patterns, cable entry points, viewing windows, or ventilation, we fabricate precisely to your technical drawings and breaker models (e.g., MCCB, ACB).

✨ Superior Durability: Constructed from high-grade materials, including cold-rolled steel, stainless steel (SUS304/316), or aluminum alloy, ensuring outstanding mechanical strength to resist impact and vibration.

✨ Excellent Protection: Engineered to meet specific Ingress Protection (IP) ratings (e.g., IP55, IP65, NEMA 4X), our enclosures effectively shield internal components from dust, moisture, oil, and chemical ingress, ensuring operational safety.

✨ Premium Finishing: We offer a variety of finishing options, including electrostatic powder coating, painting, galvanizing, or anodizing. This provides a professional aesthetic and, more importantly, robust resistance to corrosion and abrasion.

✨ Optimized Thermal Management: Based on your breaker's heat dissipation needs, we can integrate strategic ventilation louvers, cutouts for cooling fans, or other thermal management solutions to maintain optimal operating temperatures.

✨ Ease of Installation & Maintenance: Designed for field convenience with features like removable gland plates, heavy-duty hinges, grounding studs, and pre-drilled back panels, simplifying the entire process from installation to routine maintenance.

 

 

Product Specifications

 

Parameter Details
Product Name Low Voltage Circuit Breaker Enclosure
Manufacturing Process CNC cutting, punching, bending, welding, surface coating
Material Cold-rolled steel / Stainless steel / Aluminum
Surface Treatment Powder coating / Electrophoresis / Galvanizing
Dimensional Accuracy ±0.1 mm (CNC precision)
Thickness Range 1.0 mm – 3.0 mm (customizable)
Application System Low voltage circuit breaker and power distribution cabinet
Service Offered Custom sheet metal processing and assembly

 

 

Applications

 

Our circuit breaker enclosures are engineered for environments where reliability and safety are paramount. We proudly serve a diverse range of industries:

  • Industrial Automation & Manufacturing: Protecting main power-disconnect switches in Motor Control Centers (MCCs) and automation control panels on production lines.
  • Commercial Buildings: Serving as main distribution panels, floor distribution boxes, and emergency power changeover cabinets in office towers, shopping malls, and hotels.
  • Power Distribution: Used in low-voltage switchgear, panelboards, and control centers for electrical substations and utility rooms.
  • Data Centers: Providing secure housing for Uninterruptible Power Supplies (UPS) and Power Distribution Units (PDUs).
  • Renewable Energy: Housing components in solar photovoltaic (PV) combiner boxes and inverter protection systems.
  • Infrastructure: Supplying electrical control rooms for transportation systems (tunnels, subways) and water/wastewater treatment plants.
  • OEM Equipment Integration: Providing custom-fabricated enclosures for machine builders to integrate as the main power control unit for their equipment.

 

Manufacturing & Quality Assurance

 

All products are manufactured in our 30,000㎡ sheet metal facility equipped with advanced CNC punching, AMADA fiber laser cutting, automated welding robots, and automatic powder coating lines. Strict quality control is implemented under ISO9001 and ISO14001 management systems.

Company Strength

 

Xiamen Huapusheng Sheet Metal Manufacturing Co., Ltd. specializes in power control equipment and precision sheet metal fabrication. With 200+ employees, 36 engineers, and 32 patents, we serve global clients in the power, communication, and industrial sectors.

 

Xiamen Huapusheng Sheet Metal Manufacturing Co., Ltd.

 

 

 

Customer Cases

 

We are a trusted OEM partner for global leaders across multiple industries, providing reliable components for their mission-critical applications.

  • Power & Energy: Supplied custom slide rail assemblies and enclosures for ABB and Schneider Electric's power control workshops.
  • New Energy / Automotive: Provided structural components and battery housing parts for industry leader CATL , manufactured under the strict  IATF 16949 standard.
  • Telecommunications & Data Centers: Our components are applied in large-scale server cabinet projects for telecom data centers, ensuring operational reliability and performance.

 

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