China Top Automatic Transfer Switch Manufacturer

For transfer switch manufacturers, in the modern power system, continuous power supply is the core lifeline for ensuring building safety, smooth industrial production, and stable people’s livelihood operations. As the “heart” of dual power supply systems, the Automatic Transfer Switch (ATS) directly determines the power supply reliability of critical loads through its stability, precision, and safety. As a high-tech enterprise with years of focus on the low-voltage electrical field, LVMA Electric is deeply committed to the R&D, production, and innovation of automatic transfer switches. Backed by a comprehensive product matrix, core technical parameters, strict quality control, and global service capabilities, we have become a trusted ATS solution provider among transfer switch manufacturers, building a solid power safety barrier for customers worldwide.

I. Technology Deep Cultivation: Dual Layout of PC Level + CB Level, Precisely Matching Full-Scenario Needs

Focusing on the diverse power supply needs of different application scenarios, LVMA Electric independently develops two core series of automatic transfer switches: PC-level isolation type and CB-level circuit breaker type.

(I) PC-Level Automatic Transfer Switch: ——Extreme Reliability, Millisecond-Level Switching

The PC-level ATS is an isolation-type dedicated switching device featuring an integrated interlocking structure and no built-in protection components. It focuses on power switching and isolation, boasting four core advantages: strong short-circuit withstand capacity, long mechanical life, fast switching speed, and excellent safety isolation.

Core Accurate Parameters (PC-Level Series)

Rated Voltage: AC 400V/690V (50/60Hz), Insulation Voltage 1000V
Rated Current: 63A～6300A (full current coverage, ideal for high-current heavy-load scenarios)
Pole Number: 2P/3P/4P (compatible with single-phase/three-phase four-wire systems)
Switching Time: ≤80ms (Solenoid type) / 150～300ms (Load switch type), enabling millisecond-level seamless switching to ensure uninterrupted power for loads
Short-Time Withstand Current (Icw): 50kA/1s～100kA/1s, strong resistance to short-circuit impacts, suitable for high short-circuit capacity systems
Mechanical Life: ≥10000 times, no tripping mechanism, low failure rate, and suitable for frequent switching scenarios
Service Category: AC-33iB/AC-33B, capable of connecting/interrupting 10 times the rated current, suitable for complex working conditions such as motors and mixed loads
Protection Functions: Accurate detection of overvoltage, undervoltage, phase loss, and neutral break; supports three modes: automatic throw-and-recovery, automatic throw-and-hold, and mutual standby
Controller: Optional basic/standard/intelligent models, supporting automatic, manual, and remote switching with forced interlocking between manual and automatic modes

(II) CB-Level Automatic Transfer Switch: “Cost-Effective Choice” for General Scenarios——Switching + Protection, Economical and Practical

The CB-level ATS is a circuit breaker-type combined device, integrated by two high-performance molded case circuit breakers via a mechanical interlocking mechanism. Equipped with a built-in overcurrent release, it combines dual functions of automatic power switching and overload/short-circuit protection. No additional upper-level protection equipment is needed, featuring a compact size and controllable cost.

Core Accurate Parameters (CB-Level Series)

Rated Voltage: AC 400V (50/60Hz), Insulation Voltage 690V
Rated Current: 63A～1600A, covering small to medium current needs for general power distribution scenarios
Pole Number: 2P/3P/4P, modular design compatible with various power supply systems
Switching Time: 1～3s, meeting the power supply continuity requirements of non-critical loads
Short-Circuit Breaking Capacity (Icu): 25kA～50kA, capable of directly breaking short-circuit fault currents to protect downstream loads
Mechanical Life: ≥5000 times, suitable for conventional switching frequencies and easy to maintain
Service Category: AC-33B, suitable for ordinary lighting and mixed power loads
Protection Configuration: Built-in overload long-time delay, short-circuit instantaneous protection, and phase loss protection; customizable residual current protection function

II. Enterprise Core Strength: Full-Chain Independent R&D and Manufacturing, Forging Quality Benchmarks

1. R&D Strength: Independent Innovation, Technological Leadership

LVMA Electric boasts a 2,000㎡ professional R&D center, with the R&D team accounting for 30% of the total workforce. Core R&D personnel each have over 10 years of experience in low-voltage electrical R&D and are deeply involved in industry standard formulation. The company invests 15% of its annual revenue in R&D, accumulating 8 invention patents and 25 utility model patents. We have mastered three core ATS technologies: intelligent control algorithms, mechanical interlocking reliability design, and short-circuit withstand technology. Our product performance is benchmarked against international first-tier brands, with some parameters exceeding industry standards.

2. Manufacturing Capacity: Fully Automated Production, Precision Control

Located in Yueqing, Zhejiang—the “Capital of Electrical Appliances in China”—the company features a 30,000㎡ modern production base. We introduced internationally advanced production and testing equipment, including digitally controlled machinery, automated stamping production lines, precision injection molders, automated detection laboratories, and high- and low-temperature aging laboratories, enabling full-process self-manufacturing from raw material processing, component production, to full machine assembly and aging testing.

Full-Process Quality Control: Strictly adhering to ISO9001 and ISO14001 international system certifications, every product undergoes 100% aging testing, short-circuit withstand testing, and switching reliability testing, ensuring a 100% factory qualification rate.
Independent R&D of Core Components: Contacts are made of silver alloy material, offering excellent electrical conductivity and arc wear resistance; the interlocking mechanism is reinforced with high-strength engineering plastics and metals to prevent misoperation and ensure switching reliability.

3. Certification Qualifications: International Recognition, Global Accessibility

Our products have obtained a full range of international authoritative certifications, including but not limited to China 3C Compulsory Certification, CE, ROHS, and GOST. Meanwhile, they fully comply with domestic and international industry standards such as GB/T 14048.11 and IEC 60947-6-1. Therefore, our products can be directly exported to more than 80 countries and regions across Europe, Southeast Asia, the Middle East, Africa and other markets. In addition, they are well adapted to the power grid specifications and relevant certification requirements of different countries.

4. Production Capacity and Delivery: Stable Supply, Efficient Response

Production Capacity: Annual production capacity reaches100,000 sets of ATS equipment, enabling us to undertake large-volume orders and support customized production (including special voltage, current, and functional requirements).
Delivery: Standard orders are delivered within 7-15 days, and overseas orders are stably delivered within 15-20 days. A professional logistics team ensures safe and on-time delivery of goods.

5. Service System: Global Service, Full-Process Escort

LVMA Electric has established a “pre-sales, in-sales, after-sales” full-cycle service system:

Pre-sales: Provide free technical consultation, scenario-based solution design, and parameter selection guidance, tailoring ATS solutions to your specific needs.
In-sales: Track production progress throughout the process, offer installation and commissioning guidance, and provide technical training to ensure smooth equipment commissioning.
After-sales: Offer 24-hour global technical support with a warranty period of up to 2 years—far exceeding the industry average. Multiple overseas service outlets ensure quick responses to after-sales needs, resolving your concerns efficiently.

III. Core Advantages: Why Choose LVMA Electric Automatic Transfer Switch?

Full Product Coverage: Dual series (PC-level + CB-level) with current ranging from 63A to 6300A and pole numbers 2P/3P/4P, adapting to all dual power supply scenarios. One-stop procurement reduces selection costs.
Extreme Reliability: PC-level ATS offers millisecond-level switching and high short-circuit withstand capacity; CB-level ATS integrates switching and protection.
High Cost-Effectiveness: Benchmarked against international brand quality but 20%-30% more affordable. Direct factory supply eliminates middlemen, reducing your project procurement costs.
Customization Capability: Support customization of special voltage, frequency, protection functions, and communication protocols, adapting to different national power grid standards and overseas special scenario needs.
Global Service: A multilingual technical team provides 24-hour quick responses, with overseas network coverage to ensure full-process support for stable equipment operation.

IV. Application Cases: Strength Witnessed, Spreading Globally

LVMA Electric’s automatic transfer switches have been widely applied in numerous key projects worldwide, earning high recognition from customers for their stable performance:

Domestic: Tertiary hospital operating rooms, first-tier city data centers, commercial complex fire protection systems, high-speed railway station power distribution projects, etc.
Overseas: Southeast Asian photovoltaic power stations, Middle Eastern commercial buildings, African industrial plants, European residential properties, etc. A total of over 50,000 sets of equipment have been exported with zero major quality accidents.

Conclusion

Power safety is never trivial, and reliable switching is the key. Guided by “technological innovation as the core, reliable quality as the foundation, and customer needs as the orientation”, LVMA Electric continues to deepen its presence in the automatic transfer switch field. With core technical parameters, strict quality control, and full-cycle service capabilities, we provide safe, stable, and efficient ATS solutions for customers worldwide.

Choosing LVMA Electric means choosing professional, reliable, and assured power safety protection. We look forward to cooperating with global customers to create a new future of power safety!

Published On: 2026-04-29

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