Industrial Soft Starters & VFDs — Direct From the Factory. Since 1994
Built on 30+ years of engineering experience and 80+ patents, our soft starters and VFDs are designed, tested, and proven in the most demanding industrial environments — from steel mills to offshore platforms.
ISO, CE, IEC and EAC certified.
Trusted by 1,000+ enterprises across 30+ countries.
Stop losing time and equipment life to hidden electrical stress
A motor start that goes wrong. A spike that trips the line. A torque hit that breaks something. Downtime follows, production stops, management wants answers, and every eye in the room turns to you.
For the people responsible for keeping equipment running, that risk never really goes away. It sits in the back of the mind and turns every motor start into a moment of quiet pressure.
Each time a motor starts, it draws a high surge of current that pulls down grid voltage and a sudden burst of torque that hits shafts, bearings, and couplings. These electrical and mechanical shocks accumulate over time, shorten motor life, and increase the risk of failure.
Discover a smarter, more reliable way to protect your motors and equipment
When you are responsible for keeping an operation running, every startup carries its own risk. You need equipment that starts smoothly, runs reliably, and protects every component from unnecessary strain.
That is exactly what ATA motor protection solutions are designed to deliver. Our soft starters and variable frequency drives control inrush current, reduce torque shock, and keep your motors operating safely and reliably from startup onward. Every unit is configured to match the motor, the load, and the environment it works in, ensuring smooth acceleration and stable performance across every start.
By managing the stress that causes most failures, ATA solutions prevent damage before it begins and help your equipment run longer, safer, and more reliably.
Soft Starters and VFDs engineered for real industry demands
From pumps to compressors, covering all power ratings, ATA builds motor protection solutions for every scale of operation.
Low Voltage Soft Starter
Provides controlled voltage ramp-up using SCR technology to reduce inrush current, torque shock, and mechanical stress. Suitable for fixed-speed motors that need smooth, reliable starting in a wide range of load conditions.
- Available current levels: 16-1600A
- Available voltage levels: AC380V-AC1140V
- Typical power range: up to 800 kW
Medium Voltage Soft Starter
Uses medium-voltage SCR control to limit starting current and protect the grid during large motor starts. Reduces electrical impact and mechanical stress on heavy equipment while ensuring stable, reliable acceleration.
- Available current levels: 26A-3150A
- Available voltage levels: 3 kV to 15kV
- Typical power range: 400 kW to 50 MW
Medium Voltage Variable Frequency Soft Starter
Uses frequency ramp up and a proprietary seamless transfer algorithm to shift from variable frequency start to bypass contactor operation without disturbance. Ideal for weak grids, demanding starts, and large motors that need gentle, well-controlled acceleration.
- Available current levels: 16A-3150A
- Available voltage levels: 3 kV to 15 kV
- Typical power range: 1500 kW to 50 MW
Low Voltage Variable Frequency Drive
Provides full control of motor speed, frequency, and torque using IGBT technology. Eliminates electrical and mechanical shock at start, improves energy efficiency, and supports precise process control during operation.
- Available current levels: 2A-1900A
- Available voltage levels: 380 V to 690 V
- Typical power range: up to 0.75kW-1200 kW
Medium Voltage Variable Frequency Drive
Provides smooth starting and continuous control for large, high-power motors. Delivers stable, efficient operation with reduced stress on equipment, ideal for demanding processes that run continuously or require precise speed regulation.
- Available current levels: 16A-610A
- Available voltage levels: 3 kV to 15 kV
- Typical power range: 220 kW to 9000 kW
Here’s why engineers and project leaders around the world choose ATA
Proven engineering
With more than 30 years experience in the field of motor drive and control and over 80 national patents, our engineering expertise drives continuous innovation. Every solutions is designed, assembled, and tested in-house to maintain complete control over quality and performance.
Real load testing
Every product is 100 percent motor load tested on multiple platforms, including a 10 kV test platform, to verify starting and running performance such as current and voltage stability. Your equipment has already proven its reliability before it reaches your site.
Certified to global standards
ATA meet ISO, CE, IEC, and EAC certification requirements, ensuring full compliance for projects across multiple regions and industries.
End-to-end support
From consultation to commissioning, our engineers remain involved at every stage. You communicate directly with the technical team who designed, built, and tested your solutions, ensuring fast and accurate support.
Built for harsh conditions
ATA systems run safely in heat, dust, humidity, high altitude, and unstable power grids across Asia, the Middle East, Europe and Africa. They have also been proven in high altitude sites, extreme cold, offshore drilling platforms, and high salt alkaline environments.
World-class performance at a fraction of the cost
ATA keeps quality high and costs efficient by exercising strict control over every phase of production, supported by lean management principles and modular product design. From design and sourcing to assembly and testing, all processes are conducted in-house under the direct supervision of our engineering team.
China’s advanced manufacturing network also adds strength to this process, providing access to reliable materials and cost-efficient suppliers that meet international standards.
The result is simple. ATA delivers the same reliability and certifications as leading global brands, but without the extra layers and markups that drive up cost.
Speed, precision, and support you can count on
ATA’s service solution is built around your schedule. Our engineers work directly with your team from consultation to commissioning, ensuring clear communication, fast response, and complete accountability at every stage.
With more than thirty years of field experience and over eighty national patents, we combine technical expertise with real-world understanding. Each project receives one-to-one guidance and flexible solutions tailored to site conditions.
When support is needed, our response is immediate. Most inquiries are resolved within hours, and our engineers provide remote support until your system runs smoothly again.
Trusted by industries across 30+ countries
Backed by our 12-Month Performance Warranty and proven engineering support
Every solution we build is factory tested, certified, and backed by a 12-month performance warranty. If a fault occurs under your stated operating conditions, our engineers respond within 24 hours with troubleshooting service until your system runs normally again. Reliability is built into everything we deliver.
24-hour engineer response
Remote or onsite support available 
Factory-tested and certified systems 
Lifetime technical consultationStart protecting your motors in 3 easy steps
01 Share your motor and load details
02 Receive a custom technical proposal
03 Implement with confidence
What our clients say about working with ATA
ATA has been a trusted partner throughout our major blast furnace
Their team supported us from commissioning to long-term operation with fast response, strong technical expertise, and consistent on-site service. Every time we faced a critical moment, ATA engineers were there to assist and guide us. Their products have delivered stable performance since installation, helping us achieve significant economic and operational benefits. We are grateful for their dedication and reliable support
ATA soft starters were selected for the environmental control electrical systems of Phase One of Changsha Metro Line 4.
A batch of OB-6 series soft starters supplied by ATA was installed as part of the project’s electrical control cabinets and related services. Since the line entered operation in May 2019, the equipment has performed reliably in daily service. ATA’s products have met the operational requirements of this major urban rail project and continue to support stable, long-term operation.”
Our project uses multiple medium-voltage soft starters supplied by ATA.
Since commissioning, the equipment has shown excellent stability, reliable protection, and convenient installation and testing. The starting current is well controlled, and performance is on par with leading international brands. ATA’s after-sales support has been outstanding whenever an issue arises, they provide timely technical assistance and ensure smooth operation. Their contribution has been essential to the success of our pipeline project.
Our company has used ATA’s QB series soft starters since 2011 across multiple systems, including ball mills, pumping stations, and water treatment facilities.
In 2020, we added additional QB-H06 units for our mining water extraction systems, as well as QB6 low voltage soft starters and E5 series frequency converters. The QB series consistently provides gentle motor starting with minimal current, reducing impact on the power grid, lowering vibration and mechanical stress, and extending the life of motors and connected equipment. It also helps reduce voltage dips and transformer loading, lowering investment costs for supporting electrical infrastructure. After years of use, we consider ATA’s soft starters and VFDs to be highly reliable, fully protective, and stable in performance. They have proven to be dependable equipment for long-term operation.
We selected ATA’s QB-H10/1000 high-voltage soft starters for our VPSA system in 2018.
We selected ATA’s QB-H10/1000 high-voltage soft starters for our VPSA system in 2018. ATA engineers completed on-site installation and commissioning successfully on the first attempt and provided training for our maintenance team. After more than two years of continuous operation, the equipment has remained stable, reliable, and maintenance-free, helping us reduce operating costs while meeting energy-saving requirements.
Get Your Free Engineering Consultation
Describe your application, project, or equipment needs. Our engineers will respond with a tailored recommendation within 24 hours — no obligation.
Backed by 80+ patents and 1,000+ installations worldwide.
Frequently asked questions
How do warranty claims actually work?
Every soft starter comes with a clear warranty backed directly by our factory.
If there’s ever an issue, you don’t go through a chain of distributors you contact us directly. Our engineers review the data, identify the cause, and ship parts or replacements fast.
All test reports, component lists, and service records are kept on file, so warranty processing is quick and transparent.
What happens if the starter fails during commissioning?
Each unit is fully tested under real 10kV load before it leaves our factory, so failures at commissioning are extremely rare.
But if anything does happen, our engineers respond immediately usually within 24 hours to diagnose the issue and provide on-site or remote support.
We’ll help your team get the system running again, and if replacement is needed, we prioritize production and shipping to minimize downtime.
What if I don't have a local distributor near me?
That’s not a problem. We work directly with clients in over 30 countries, and our technical team supports you from sizing to documentation and after-sales service.
If you ever need on-site help, we coordinate with our regional partners or provide remote guidance to your engineers. You’ll always have someone from ATA available when you need support, no layers, no delays.