Automatic transfer switch manufacturer

WEISHO, as a leading manufacturer of Automatic transfer switch in the market, not only creates high-quality products with strict processes, but also provides the most competitive prices with its complete supply chain advantages. At the same time, we support OEM manufacturing and personalized customization services to help customers enhance their brand competitiveness and market value.

What are our characteristics

Production technology

Adopting industry-leading manufacturing processes, continuously optimizing production processes, and improving efficiency and accuracy

Customization and OEM/ODM

Supports OEM/ODM services and can provide customized solutions according to your needs, including rated current, brand identification, etc

High performance-price ratio

Efficient production and strong supply chain management ensure high quality and low prices, reducing customer procurement costs

Long term partnership

Putting customers at the center, establishing long-term stable cooperation, and assisting in the growth of customer business.

Customizable automatic transfer switch

Explore our extensive range of customized Automatic transfer switches, suitable for various distribution scenarios and professional applications. We provide comprehensive solutions from basic circuit protection to high-performance intelligent control:

6300A Industrial Automatic Transfer Switch

Fixed Automatic Transfer Switch

Universal Automatic Transfer Switch

Wholesale Automatic Transfer Switch

A brief introduction

WHY CHOOSE US

Industry-leading testing: Every automatic transfer switch (ATS) undergoes 100% strict testing in line with international safety standards (e.g., switching time, current-carrying capacity), ensuring reliable performance in power switching scenarios.
High-quality materials: Adopts premium components (e.g., high-conductivity copper contacts, flame-retardant housings) to extend service life and guarantee stable power switching even under high-load conditions.
Engineering Innovation: Our R&D team continuously optimizes ATS technology—such as shortening switching response time and adding intelligent fault protection—to enhance power supply continuity.
Global certification: Our entire ATS series has obtained IEC, CE, UL, and regional safety certifications, meeting access requirements of markets worldwide.
Comprehensive support: We provide end-to-end services from ATS model selection (matching to load and power system types) to on-site installation training and after-sales maintenance guidance.

Why choose an automatic transfer switch?

Automatic transfer switches (ATS) are essential components in modern electrical systems, enabling seamless switching between main and backup power supplies. They aim to ensure a continuous power supply in various applications, maintaining system stability and reducing downtime. Here’s why ATS is the wise choice to meet your power reliability needs.

Efficient Overload Protection

Automatic transfer switches (ATS) provide reliable protection for power supply continuity, ensuring your electrical systems avoid downtime caused by main power failures.

Advanced security features

Automatic transfer switches (ATS) are equipped with advanced safety features that reduce power supply risks and enhance system operational safety.

Versatile Applications

Automatic transfer switches (ATS) can be applied in various environments and scenarios, making them a flexible choice for ensuring continuous power supply in different electrical systems.

Cost-Effective Solution

Investing in automatic transfer switches (ATS) helps reduce long-term operational costs by ensuring stable power supply and minimizing equipment damage risks.

The advantages of our automatic transfer switch

Stable power switching performance

Adopts optimized contact design to ensure smooth, arc-free switching during power transfer—suitable for high-frequency switching scenarios (e.g., backup power testing).

Intelligent functions

Compatible with intelligent monitoring systems, supporting remote status tracking, fault alarm push, and historical switching record query to improve system management efficiency.

Long mechanical lifespan

Uses high-wear-resistance contact materials and precision transmission structure, with a mechanical service life of over 40,000 switching cycles—far exceeding basic transfer switch products.

Low maintenance cost

Adopts oil-free, simplified structural design, reducing daily inspection frequency and lowering long-term operation and maintenance expenses.

High adaptive capability

Supports wide voltage/current ranges (e.g., AC1150V, large current carrying capacity) to meet the power supply needs of high-voltage, heavy-load scenario

Brand reputation

Certified by ISO, IEC, UL and other authoritative institutions, widely used in global markets, with guaranteed product quality and comprehensive after-sales service support.

Get Your Free Sample!

We provide customized solutions. Tell us your needs for a precise quote.

Not just an automatic transfer switch manufacturer

We not only produce automatic transfer switches (ATS), but also offer a range of customized value-added services to meet your project needs. We are committed to pursuing excellence, ensuring that every customer receives personalized attention, expert guidance, and seamless support throughout the entire process of working with us.

Service Consultation

Whether your ATS requirements are for basic applications or complex projects, our team can provide professional advice and technical consultation. For high-difficulty projects (e.g., large-scale industrial dual-power systems), we provide in-depth engineering support to ensure the selection of the best products and application solutions.

Product Recommendations

Not sure which ATS is suitable for your system? Our experts will provide free customized advice based on your specific operational and environmental requirements, ensuring you receive the product that best meets your power continuity needs.

Logistics Support

If you lack a reliable freight forwarder, we can arrange transportation from the factory to the project site at no additional cost. Our logistics team ensures timely and safe delivery, keeping your project on schedule and minimizing downtime.

Installation Support

If you need assistance with deployment, we can provide professional installation guidance (including wiring specifications and system debugging). Our technical team ensures your ATS operates stably after installation.

What are our clients saying

Don’t just believe what we say! Take a look at satisfied customers’ evaluations of our automatic transfer switches (ATS):

“The ATS has significantly improved the power continuity of our industrial equipment—we no longer face production downtime due to sudden power outages.”

John Doe

Electrical Engineer

“The ATS is easy to use and efficient; it automatically switches to backup power during blackouts, keeping my home’s essential appliances running smoothly.”

Tom Johnson

Homeowner

“I trust this ATS for its durability—it’s been running stably in my workshop for over a year, and I don’t have to worry about power interruptions anymore.”

James Brown

DIY Enthusiast

“Since switching to this ATS, our building’s power reliability has been outstanding, and maintenance costs have dropped noticeably.”

Maria Smith

Facilities Manager

WEISHO employs the most advanced production equipment and precise testing methods at all times, providing a solid guarantee for the company’s product manufacturing and quality inspection.

All products of the entire series have undergone strict environmental and electrical tests.

At the same time, the company has obtained ISO9001 quality management system and ISO14001 environmental management system certifications.

♥Wide selection
♥OEM Quality
♥100% Satisfaction Guarantee

Looking forward to working with you

Your trusted electrical equipment supplier

FAQ

Learn more about automatic transfer switches (ATS) through these frequently asked questions.

What is an automatic transfer switch?

A device that switches power between main and backup sources to ensure continuous supply.

How do automatic transfer switches work?

Monitors power status; switches to backup when main power fails, and back when restored.

Why use an automatic transfer switch?

Avoids downtime, protects equipment, and ensures uninterrupted power.

What are the components of an ATS?

Core parts: power monitoring module, switching mechanism, and control unit.

How often should ATS be tested?

Test switching function every 3–6 months; professional inspection annually.

Can ATS be used in residential applications?

Yes—suitable for home backup power (e.g., matching generators).

What maintenance do ATS require?

Clean contacts regularly; check status indicators monthly.

Are ATS environmentally friendly?

Most use recyclable materials and meet low-energy standards.

What sizes do ATS come in?

Available in current ratings (e.g., 32A–6300A) for different loads.

Do ATS have a warranty?

Typically 1–2 years, covering material and workmanship defects.