UniWave Electric
UniWave Electric
Explore our foundational low-voltage components engineered to power global smart grids, distribution boards, and automatic transfer schemes.
Bridging the gap between secondary distribution reliability, renewable grid ties, and automated load transfer systems.
As modern distribution infrastructures transition toward intelligent, decentralized microgrids, the role of the Automatic Transfer Switch (ATS) has expanded beyond simple source backup. In high-demand environments, an ATS acts as the primary safety interlock that prevents asynchronous source coupling, maintains power quality, and guards critical processes. Wenzhou UniWave Electric addresses this evolution by designing ATS solutions that synchronize seamlessly with secondary safety units such as Miniature Circuit Breakers (MCBs), Molded Case Circuit Breakers (MCCBs), and Air Circuit Breakers (ACBs) to create a fail-safe cascading protection network.
In municipal and industrial solar PV arrays, wind generation networks, and battery energy storage installations (BESS), modern transfer systems manage dynamic bidirectional flows. An ATS optimized for these applications must accommodate transient overvoltages, manage the out-of-phase connection of rotating machines (such as large water pumps and cooling compressors), and communicate real-time grid parameters to centralized control rooms via industry-standard protocols.
| ATS Configuration Class | Typical Transition Duration | Primary Overload Integration | Best Application Environment |
|---|---|---|---|
| PC-Class (Excitation Contactor Structure) | < 50ms (High Speed) | Separate upstream protection required | Data Centers, Healthcare ICU, Emergency Critical Lighting |
| CB-Class (Circuit Breaker Tripping Structure) | 100ms - 500ms (Delayed) | Built-in thermal-magnetic / electronic release | Commercial HVAC, Heavy Machinery, Secondary Distribution Nodes |
| Bypass-Isolation ATS | Continuous Operation (Zero Downtime Maintenance) | Redundant dual-channel routing | Financial institutions, airport control towers, telecomm nodes |
How high-performance transfer networks sustain productivity, safety, and business continuity across diverse global sectors.
Modern cloud architectures demand 99.999% uptime. Implementing PC-class automatic transfer switches configured with dual solenoid designs ensures transition speeds fast enough to prevent IT power supply units from dropping out, avoiding costly data loss.
In life-support environments, power outages are unacceptable. Our transfer solutions, coupled with specialized voltage protection relays, monitor phase sequence and failure, triggering standby diesel generators and executing emergency switches within milliseconds.
Automated assembly lines, steel mills, and petrochemical facilities rely on continuous power to prevent material wastage and machine damage. High-current air circuit breakers and bypass ATS systems provide the necessary short-circuit withstand capacity.
Designing the next generation of transfer technology with IoT integration, predictive diagnostics, and advanced materials.
The transition toward decentralized distribution systems requires automatic transfer switch manufacturers to continuously innovate. The future of ATS technology centers on the integration of solid-state power electronics alongside mechanical contacts to facilitate near-zero arc transfer. This hybrid approach significantly reduces contact wear, extending mechanical life to over 10,000 operations.
Simultaneously, Wenzhou UniWave Electric is developing integration modules for cloud diagnostics and edge computing. By embedding multi-channel microprocessors directly into our ATS frames, we enable predictive maintenance. Sensors continuously monitor contact temperatures, dielectric insulation levels, and transition speeds, sending real-time reports to main building management platforms (BMS) over Modbus, Profibus, or Ethernet TCP/IP.
Deeply rooted in Liushi, Yueqing, Wenzhou, China—the global epicenter of low-voltage electrical engineering.
Wenzhou UniWave Electric Co., Ltd. is a leading manufacturer specializing in a wide range of electrical products, including Circuit Breakers (RCBO / RCCB / MCB / WiFi Smart MCB / MCCB / ACB), Isolator Switches, Change Over Switches, AC Contactors, Thermal Relays, Magnetic Starters, Solid State Relays, Distribution Boxes, Voltage Stabilizers, and Voltage Protectors. Our company is located in Liushi, Yueqing, Wenzhou, China, famously known as the “City of Low Voltage Electrical Appliances,” offering both a thriving industrial environment and a beautiful natural setting.
With over 25 years of experience in the circuit breaker and AC contactor industry, Wenzhou UniWave Electric has established a strong reputation for quality, reliability, and innovation. Our products strictly comply with IEC standards and have obtained internationally recognized certifications, including SAA, CE, CB (IEC), and ISO9001. We are equipped with advanced testing instruments and a highly skilled R&D team, allowing us to continually develop new products and improve existing ones. Our products are widely exported and highly appreciated in various markets around the world, including Europe, America, Southeast Asia, the Middle East, and Africa.
Navigating complex international codes (IEC, UL, GB) to ensure seamless deployment and compliance for every project.
Procuring heavy-duty electrical switches from an exporter requires absolute trust in regulatory alignment. Different regions dictate distinct requirements. While the European and Asian markets heavily prioritize strict adherence to IEC 60947-6-1 (the specific global standard regulating multi-function transfer switches), North American systems require conformance to UL 1008, which mandates rigorous short-circuit testing alongside environmental and enclosure integrity checks.
To support distribution engineers in these diverse markets, Wenzhou UniWave Electric maintains a rigorous compliance infrastructure. Every ATS batch undergoes exhaustive verification tests before dispatch, including dielectric strength verification, electromagnetic compatibility (EMC) testing, and thermal rise inspection under sustained rated current. This guarantees that our products operate safely under challenging climatic conditions, such as high-temperature environments in the Middle East or humid regions in Southeast Asia.
Answering the primary technical questions of global engineers, system integrators, and procurement directors.
A PC-class ATS features a dual-throw mechanism based on an excitation contactor system. It is designed to connect and carry currents but does not possess overcurrent tripping mechanisms. It prioritizes rapid transfer speed and high short-time withstand current. Conversely, a CB-class ATS is equipped with a mechanical tripping release. It utilizes standard circuit breakers (MCCB or MCB structures) linked by a mechanical interlock, providing built-in overload and short-circuit protection, though with a slightly slower transition speed.
Typical server power supplies (PSUs) can ride out power interruptions of approximately 16 to 20 milliseconds (as defined by the CBEMA/ITIC curves). If the ATS switching time exceeds this threshold, servers may reboot, resulting in downtime. Utilizing a high-speed PC-class ATS with an optimized controller ensures the transfer occurs within 10 to 30 milliseconds, maintaining continuous IT operations.
A Bypass-Isolation ATS integrates a secondary manual switch channel parallel to the automatic switch mechanism. This configuration allows maintenance engineers to isolate, service, or test the primary ATS controller and main switching contacts without interrupting power to the downstream load. It is a critical requirement for Uptime Institute Tier III and IV facilities.
Inductive loads, such as large motors and compressors, generate significant counter-electromotive force (back-EMF) when disconnected. Transferring sources out-of-phase can cause high transient inrush currents, risking damage to the motor and tripping protective devices. For these applications, engineers should specify an ATS with either a delayed-transition mode (allowing motor magnetic fields to decay) or in-phase monitor control to ensure synchronous transfer.
Explore our range of protective relays, vacuum contactors, and control accessories designed to support continuous industrial operations.
