
Project Overview
This project features a custom-designed enclosure for a 150A Automatic Transfer Switch (ATS), developed for power management and generator switching applications.
The enclosure is manufactured from 2.0 mm carbon steel with a durable powder-coated finish. Designed for functional control integration, it includes precise cutouts for indicators, reset controls, and electrical components, ensuring both usability and clean panel layout.
Client Requirements for Custom Electrical Enclosure;
The client required a fully customized ATS enclosure with precise mechanical and electrical integration:
• Application: Automatic Transfer Switch (ATS) control panel
• Material: Carbon steel, 2.0 mm thickness
• Surface finish: Powder coating (RAL1011 base color with RAL5017 stripe)
• Front panel: Custom cutouts for indicator lights and reset button
• Mounting: Internal PCB standoffs and contactor mounting base
• Wiring space: Optimized layout for easy cable routing and maintenance
• Branding: Custom logo and panel printing
Custom Electrical Enclosure Manufacturing Solution;
Based on the provided drawings and functional requirements, a refined enclosure design was implemented:
• Optimized front panel layout for indicator lights and reset controls
• Adjustable hole spacing and positioning for improved usability and wiring clearance
• Precision CNC machining for accurate cutouts and mounting points
• Threaded mounting holes for PCB and contactor installation
• Raised internal mounting platform to accommodate electrical components
• Flexible customization for text, logo, and color scheme
Electrical Enclosure Specifications & Fabrication Details;
• Material: Carbon steel
• Thickness: 2.0 mm
• Surface Finish: Powder coating (RAL1011 / updated to RAL1005 optional)
• Decorative Design: RAL5017 stripe
• PCB Mounting: M3 × 0.5, depth 6 mm
• Contactor Mounting: M5 × 0.8, depth 10 mm
• Panel Cutouts: Customized for indicators and reset button
• Structure: Wall-mounted enclosure
• Lock: External lock system (packed separately for shipment)
Manufacturing Process;
• Laser cutting of stainless steel sheets
• CNC bending and precision forming
• Welding and structural assembly
• Surface finishing (brushed or customized)
• Installation of internal components and accessories
• Quality inspection and sealing verification
Final Result;
The final enclosure provides a clean and functional layout for ATS control systems, ensuring ease of installation, reliable mounting, and improved user operation.
With precise customization and refined structural adjustments, the enclosure meets both aesthetic and technical requirements for power control applications.
Why Choose Vililong as Your Electrical Enclosure Manufacturer?;
Why Choose Vililong as Your Electrical Enclosure Manufacturer?
– 10+ years sheet metal fabrication experience
– OEM & custom design support
– Fast production (7–10 days)
– Export to 30+ countries
– Strict quality inspection
We help customers reduce cost while ensuring industrial-grade performance.
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Professional Customer Electrical Enclosure Manufacturer
Brings Excellent Services
Tell us your enclosure or assembly needs — our team will respond within 24 hours.
What’s your company main products?
The main business is to provide customers with custom enclousure services, we also sell some General Boxes.
How about the price of the product?
We are a manufacturer, we mainly provide customized services for our customers, and we believe that our prices have enough advantages.
What does the enclosure customization service contain?
Box Sizes,Box Colors,Door Types,Gland Plates,Specific Cutouts,Moutning Plates,Protective Covers,Standing Types,Windows,Thickness,Accessories.
Can we get the sample? Is it free?
Yes, we could offer the general box sample for free charge,but need you pay the express. The freight depends on weight, packing size and your country or province region, etc.
What’s about MOQ?
First order MOQ=1pcs.
How can I get product catalogs?
You can get the catalogs by contacting us.
How to order our product?
1.Please tell us the model and quantity and other request you need.
2.We make the PI for you.
3.After you confirm the PI, we arrange the order for you after receiving your payment.
4.After the goods finished, we send the goods out to you and tell you the tracking number.
5.We will track your goods until you receive the goods.
How about the after-sale service?
If you meet any problems after sales, pis contact us freely, we’ll help solving the problems within 24 hours.
What’s the payment term?
100% T/T (large order, accept 30% T/T prepay 70% balance before shipping), Western Union, Paypal.







