UniWave Electric
UniWave Electric
High-performance single-phase & electromagnetic power relays designed for continuous industrial operation.
Decades of manufacturing precision in Liushi, Wenzhou, China — the global low-voltage electrical capital.
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.
Why semiconductor-based switching is replacing traditional electromechanical systems in modern industries.
In the landscape of modern industrial automation and electrical engineering, the choice of switching components plays a decisive role in system uptime, energy efficiency, and overall reliability. Traditional Electromechanical Relays (EMRs) rely on moving physical copper contacts, which inevitably suffer from mechanical wear, contact bounce, and electrical arcing. Over time, these factors lead to degradation, carbon buildup, and system failure.
Solid State Relays (SSRs) represent a paradigm shift in switching technology. By using semiconductor power components such as back-to-back thyristors (SCRs), triacs, or power MOSFETs, SSRs perform switching functions electronically without any physical contacts. When a low-voltage control input is applied (typically 3-32VDC), it activates an internal LED. This light signal is received by a photosensitive semiconductor (optocoupler), which triggers the high-power output switch (such as 24-480VAC). This mechanism provides absolute galvanic isolation between the low-voltage control loop and the high-voltage load circuit.
This design eliminates mechanical friction, allowing for millions of switching cycles with zero degradation. Additionally, SSRs offer rapid switching speeds (within microseconds), zero-cross switching options to drastically reduce Electromagnetic Interference (EMI), and silent operation, making them the preferred choice for precise temperature control, smart home automation, and high-frequency switching environments.
Triggers output current close to the zero-point of the AC sine wave, minimizing transient electrical noise and inrush current for resistive loads.
No moving contacts means zero wear, eliminating the need for periodic maintenance and reducing unscheduled factory downtime.
Provides up to 4000Vrms isolation between the control signal and high-voltage load, protecting sensitive PLC systems from high-voltage spikes.
The strategic industrial advantages of the Liushi cluster in Wenzhou, China.
Sourcing Solid State Relays from Wenzhou UniWave Electric Co., Ltd., located in the prominent Liushi industrial cluster, provides global buyers with structural supply chain advantages that cannot be replicated elsewhere:
Keeping pace with the advancements in power electronics and smart infrastructure.
As modern control cabinets house more sensors and communication modules, space optimization is critical. The industry is rapidly shifting from bulky block-style SSRs to slim 6.2mm or 12mm DIN-rail mounted profiles. These ultra-thin modules, like the LANBOO series, save valuable space inside complex smart home systems and PLC enclosures.
Heat is the primary limiting factor for semiconductor switching. Modern designs integrate high-performance aluminum and copper heatsinks directly with the SSR's ceramic copper-clad (DBC) substrate. This optimization minimizes thermal resistance, allowing single-phase relays to sustain high current loads (up to 125A or more) without overheating.
Next-generation SSRs do more than switch power—they monitor load currents, operating temperature, and voltage dips. Featuring built-in feedback loops, these smart relays communicate real-time diagnostic data to edge controllers, enabling predictive maintenance before failures occur.
Transitioning from traditional silicon-based SCRs to Wide Bandgap (WBG) materials like Silicon Carbide (SiC) and Gallium Nitride (GaN) to dramatically reduce thermal generation and switching losses.
Solid State Relays engineered for demanding environments and specialized industries.
Plastic injection molding machines and industrial ovens require continuous PID temperature control. SSRs switch heaters on and off within milliseconds, keeping temperatures stable and ensuring consistent product quality.
Integrated PCB power relays and ultra-thin micro relays enable home automation controllers to safely switch lighting loads, HVAC compressors, and smart wall sockets without clicking sounds or sparking risks.
For solar inverters and EV charging piles, our high-power AC and DC solid state relays manage high voltage switching and isolation, protecting infrastructure from grid abnormalities.
Experience our advanced manufacturing steps, showing the quality control and reliability built into every unit.
At Wenzhou UniWave Electric Co., Ltd., we maintain a complete in-house manufacturing process. Our production lines feature high-precision automated machinery and quality inspections at every stage, from raw material checking to final warehouse packaging.
Clear, expert answers addressing common questions about Solid State Relays and global sourcing.
High-power, multi-phase, and space-saving SSR solutions for diverse industrial installations.
