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Precision Solid State Relays & Power Control

Manufacturer and global trader of high-performance SSRs, SCR regulators, DC contactors, and thermal management solutions.

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About Quert-yq

Yueqing City Quert Electric Co., Ltd. is a dedicated enterprise focused on the research, development, manufacturing, and trading of solid state relays and related power control components. With a strong commitment to innovation and quality, we serve industries ranging from industrial automation to renewable energy systems.

Our company is equipped with advanced production and testing equipment, ensuring every product meets rigorous international standards. We pride ourselves on offering reliable quality at competitive prices, earning the trust of customers worldwide.

15+
Years Experience
50+
Global Clients
98%
Customer Satisfaction
Factory or Product Image

Our Product Range

High-performance solid state relays and power electronics for industrial, commercial, and specialized applications.

STH24D25 Solid State Relay

STH24D25

Single-phase AC output SSR, 24V DC input, 25A load current. Ideal for heating control and industrial switching.

Celduc SSR SO963460

Celduc SSR SO963460

High-reliability Celduc-compatible SSR with zero-cross switching. 40A rating, compact design.

SCM040600 DC SSR

SCM040600 DC SSR

Celduc DC Solid-State Relay, 40A load, 600V rating. Designed for battery systems and DC motor control.

SOM040200 DC SSR

SOM040200 DC SSR

Compact DC output relay, 40A, 200V. Suitable for solar inverters and EV charging systems.

SGT962360 Three Phase SSR

SGT962360 3-Phase SSR

Three-phase solid state relay, 60A per phase. Balanced load switching for industrial motors.

Carlo Gavazzi RD0605-D

Carlo Gavazzi RD0605-D

3–32V DC control input, 60A load. High isolation and surge protection for harsh environments.

SH48D50

SH48D50

48V AC output, 50A load. High-efficiency switching for HVAC and industrial heating.

Phase Angle Controller SG469120

SG469120 Phase Controller

Precision phase-angle control for AC loads. Smooth power regulation in industrial processes.

SCR Voltage Regulator

SCR Voltage Regulator

Adjustable AC voltage control using thyristor technology. Ideal for transformer and furnace control.

DC Contactor

DC Contactor

High-current DC switching device for battery banks, solar arrays, and electric vehicles.

Heatsink

Aluminum Heatsink

Thermal management solution for SSRs and power modules. Optimized for natural convection cooling.

Crydom SSR

Crydom-Compatible SSR

Drop-in replacement for Crydom relays. High reliability and long lifecycle under continuous load.

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Why Choose Quert-yq?

Reliable Quality

Every product undergoes rigorous testing to ensure durability, performance, and safety in industrial environments.

Competitive Pricing

Direct manufacturer pricing with no middlemen. High value without compromising on performance or support.

OEM & Customization

We offer OEM production and custom configurations to meet your specific technical and branding requirements.

100K+
Units Shipped
30+
Countries Served
99.2%
On-Time Delivery
15+
Years in Market

Frequently Asked Questions

What is a solid state relay (SSR)?

A solid state relay is an electronic switching device that turns on or off when a small external voltage is applied. Unlike electromechanical relays, SSRs have no moving parts, offering longer life and silent operation.

Can you provide OEM services?

Yes, we offer OEM production with custom labeling, packaging, and technical specifications based on your requirements.

Do you support international shipping?

Yes, we ship globally via DHL, FedEx, and sea freight. We handle all export documentation and compliance.

What brands do you distribute?

We carry and supply compatible models for Celduc, Carlo Gavazzi, Crydom, Fotek, Teledyne, and other leading brands.

How do I choose the right heatsink?

The correct heatsink depends on load current, ambient temperature, and duty cycle. We provide thermal guidance and selection charts upon request.

Get in Touch

Reach out for product inquiries, technical support, or partnership opportunities.

Contact Details

Contact Persons

  • Bryan Zhou – Sales & Business Development
  • Jenny – Customer Support & Inquiries
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