Automatic Transfer Switch (ATS) Manufacturer
Ensure stability and safety for critical power scenarios. Soltree Automatic Transfer Switches guarantee seamless switching to backup power when the main source fails, keeping your equipment and operations running without interruption.
- Fast Switching — Millisecond response, uninterrupted power
- High Reliability — Stable performance for critical loads
- Smart Control — Remote monitoring & flexible management

Soltree Automatic Transfer Switch Series
From compact to industrial-grade, Soltree ATS ensures fast switching, smart protection, and reliable performance.
Model: SATS-W-2P
- Fast Switch — ≤0.05s, no power loss
- Easy Install — 35mm DIN rail
- Dry Contact — Can connect Indicator light
Model: SATS-W-3P
- Fast Switch — ≤0.05s, no power loss
- Easy Install — 35mm DIN rail
- Dry Contact — Can connect Indicator light
Model: SATS-W-4P
- Fast Switch — ≤0.05s, no power loss
- Easy Install — 35mm DIN rail
- Dry Contact — Can connect Indicator light
Model: SATS-G-2P
- Compact Design — fits 35mm DIN rail
- Fast Switch — ≤0.02s, seamless power supply
- Easy Wiring — Simplified connection design
Model: SATS-G-4P
- Compact Design — fits 35mm DIN rail
- Fast Switch — ≤0.02s, seamless power supply
- Easy Wiring — Simplified connection design
Model: SATS-D-2P
- Affordable — For industry & large homes
- Switching — ~1s transfer, stable use
- Cost-Effective — Reliable & affordable
Model: SATS-D-4P
- Affordable — For industry & large homes
- Switching — ~1s transfer, stable use
- Cost-Effective — Reliable & affordable
Model: SATS-B01-4P
- Industrial-Grade — Safe and stable
- Wide Range — 16A–3200A options
- Reliability — Robust design with full protection
Model: SATS-B02-4P
- Industrial-Grade — Safe and stable
- Wide Range — 16A–3200A options
- Reliability — Robust design with full protection
Soltree – Trusted Electrical Solutions from China
Work directly with a trusted Chinese manufacturer and save up to 30% vs. local suppliers.
About Soltree
High Quality, Better Price – That’s Soltree
With 15+ years of experience in the electrical industry, Soltree is known for providing high-quality products and reliable service at competitive prices. We are proud to be one of China’s trusted electrical equipment suppliers, with over 100,000㎡ of factory space and 200+ skilled workers.
Supported by strong technical expertise, modern equipment, and strict quality control, we ensure excellence from raw material sourcing to final packaging, maintaining high standards at every step.
Soltree – Reliable Electrical Solutions
Global-Ready, Trusted by Professionals
Soltree delivers reliable smart electrical solutions designed for both residential and commercial use. By combining advanced technology, strict quality control, and efficient production, we provide products that meet international standards while keeping costs competitive. Our goal is to help partners worldwide simplify installation, improve safety, and build smarter energy systems.
Why Choose Soltree Automatic Transfer Switch?
Smart technology, strong production, and export-ready service.
Uninterrupted Power, Anytime
Keep your business and home running without a pause. Our ATS guarantees instant switching between main and backup power, ensuring continuous operation for critical loads.
Fast & Reliable Switching
With transfer times under 0.05s, our ATS ensures your power changes smoothly and safely — no interruptions, no downtime.
High Value, Flexible Options
Get premium reliability at competitive prices. With strong in-house production and full OEM/ODM customization, our ATS adapts perfectly to your specific project needs.
Trusted Worldwide
Certified to international standards and proven in 50+ countries, our ATS is the choice of professionals who demand safety, stability, and global compliance.
Customization That Builds Your Brand
Logo, packaging, product design, and distributor support — everything can be tailored to help your business stand out.
Logo & Branding
Custom logos, labels, and product copywriting to strengthen your brand identity.
Packaging Options
Retail boxes, bulk packaging, and private label designs tailored to your sales channels.
Product Design & Development
From new specifications to complete ODM projects, we bring your product ideas to life.
Distributor Materials
Customized brochures, manuals, and marketing assets to support your sales network.
Frequently Asked Questions
We have compiled some common questions from our clients. If your question isn’t included here, our customer service is always available to help.
How Can I Get a Quote for the ATS?
Please contact our customer service for a quote on our Automatic Transfer Switch. We’re available 24/7. Provide your order details (type, size, quantity), and we’ll assist you through the entire process.
What is Your MOQ for the Order?
Our minimum order quantity (MOQ) is modest. You can purchase as few as one unit, and we will deliver it just how you want it.
How long will it take for my order to arrive?
Our Automatic Transfer Switch is ready in 7–10 business days, with delivery taking up to 15 additional days. For custom or bulk orders, we’ll confirm the turnaround time before you place your order.
Can I get a sample before I place my order?
Yes, we provide samples for evaluation and approval. Contact our customer service team to get a sample.
Can You Make a Customized ATS?
Yes, we do make custom Automatic Transfer Switches. Tell us what you need, and our knowledgeable customer service team will help you through the design process.
How is your after-sales service?
We offer 24/7 after-sales support. Our technical team can help with installation or operation issues, and defective items are covered by repair, replacement, or refund under our warranty policy.
1. What Is a Automatic Transfer Switch(ATS)?
Electricity is the backbone of modern life. When a blackout happens, running to switch on the backup power manually can waste precious time. In the meantime, precision machines may lose data, production may be interrupted, and critical systems could fail.
Power Made Simple, For Every Place
An Automatic Transfer Switch (ATS) makes power management simple and worry-free. With fully automatic switching between main and backup power, there’s no need for manual operation — saving time, effort, and stress during unexpected outages.
Designed for versatility, ATS is widely used in residential homes, shopping malls, hospitals, schools, office buildings, and factories. Wherever continuous power is essential, ATS delivers a seamless, reliable solution that adapts to your needs.
Strong, easy to use, and built for diverse applications, our ATS is the smart choice for ensuring stable power in every environment.
2. Ultra-Fast Switching Speed
When power switches between main and backup sources too slowly, the consequences can be severe. Computers may crash, precision instruments may malfunction, and valuable data can be lost in an instant. Even a short interruption is enough to cause costly downtime and equipment damage.
Millisecond Switching, Zero Downtime
Our Automatic Transfer Switch (ATS) is designed for speed and reliability. With millisecond-level transfer time, it ensures power switches seamlessly from the main supply to backup without interruption. Sensitive equipment stays protected, data remains safe, and operations continue without a pause.
Whether it’s for industrial machines, IT systems, or essential home devices, this ultra-fast response means you’ll never even notice a power outage — but your ATS will.
3. Flexible Switching Modes
Different situations call for different levels of control. With both automatic and manual transfer modes, our ATS gives you the flexibility to respond to emergencies automatically or take control when manual operation is required. This ensures reliable power management for every scenario.
Two Modes, Your Choice
An Automatic Transfer Switch (ATS) offers two switching modes — automatic and manual — to meet different power management needs.
In automatic mode, the ATS continuously monitors the main power source. If an outage or abnormality occurs, it instantly transfers the load to the backup source without requiring any human intervention. This ensures uninterrupted operation for critical equipment such as servers, medical devices, and production lines.
In manual mode, operators can take direct control of the power transfer when needed, such as during system maintenance, testing, or special operating conditions. This flexibility allows users to manage power safely and efficiently in both everyday use and emergency situations.
4. Flame-Retardant Safety Design
Power protection is not just about switching speed — material safety is equally important. Our ATS is built with high-grade flame-retardant materials to safeguard your systems under extreme conditions.
Fire Safety You Can Trust
The housing and critical components of our Automatic Transfer Switch (ATS) are made from certified flame-retardant materials that can withstand high temperatures and prevent the spread of fire. In the event of overheating, electrical faults, or unexpected surges, the flame-retardant structure helps contain potential risks, protecting both your equipment and personnel.
This enhanced safety feature is especially vital for residential homes, shopping malls, hospitals, schools, office buildings, and industrial facilities, where fire prevention and system reliability are top priorities. By combining advanced fire-resistant materials with robust engineering, our ATS provides not only stable power transfer but also peace of mind against fire hazards.
5. Dry Contact for External Indicators
Clear and visible status indication is essential for safe and efficient power management.
Dry Contact, Smarter Indication
Our Automatic Transfer Switch (ATS) is equipped with dry contact signal outputs, allowing users to connect external indicator lights or alarm devices. This feature makes it easy to monitor the switch status at a glance, whether in residential, commercial, or industrial settings.
By integrating indicator lights, operators can quickly identify whether the system is running on the main or backup power source, ensuring faster response and enhanced safety. This simple yet practical function adds convenience and reliability to everyday power management.
6. Compact Design, Easy Installation
Space-saving design makes our ATS a perfect fit for modern electrical setups.
Small Size, Big Power
Our Automatic Transfer Switch (ATS) features a compact form factor that takes up minimal space while delivering maximum performance. With its standard 35mm DIN rail mounting, installation is fast, simple, and compatible with most distribution boxes and meter cabinets.
This thoughtful design allows the ATS to integrate seamlessly into residential homes, office buildings, commercial facilities, and industrial sites without requiring extra space or complex modifications. By combining small size with powerful functionality, our ATS provides a neat, professional installation that saves time, space, and effort.
7. Find the Right ATS for Every Need
From compact residential solutions to heavy-duty industrial models, Soltree offers a complete range of Automatic Transfer Switches (ATS). Compare speed, installation type, and performance to choose the model that best fits your application.
Model | SATS-W Series | SATS-G Series | SATS-D Series | SATS-B Series |
---|---|---|---|---|
Switching Speed | 50ms, seamless transfer | 20ms, seamless transfer | Seconds | Seconds |
Application | Residential & Industrial | Residential | Residential & Industrial | Industrial |
Voltage Range | 400VAC | 220VAC / 110VAC | 400VAC | 440VAC |
Installation | DIN Rail | DIN Rail | Screw Mounting | Screw Mounting |
Size | Small | Smaller | Medium | Large |
Drive Type | Electromagnetic | Electromagnetic | Miniature Breaker | Motorized |
Get Free Samples
Have questions about our products or need assistance with a project? Our team is ready to help you find the perfect electrical solution.
Mail Address
jacky@cnsoltree.com
Phone/Whatsapp
+86 15658672325
Headquarters
Fenghuang Industrial Zone,BaishiTown,Yueqing Zhejiang P.R. China
Contact Us