10 Best Solid State Relay Manufacturers to Watch in 2025

The solid state relay market is growing fast. It was worth USD 1.54 billion in 2024. It could reach USD 2.60 billion by 2032. Here are the 10 best solid state relay manufacturers to watch in 2025: Crydom, Omron, QIANJI, Lorentzzi, Celduc, Crouzet, MGR, Gold, Autonics, and Fotek.

Experts use different things to compare these companies. The table below shows what is most important:

You should match each company's strengths to what you need. Keep reading for company profiles and helpful tips.

Key Takeaways

The solid state relay market is growing very fast. It may go from USD 1.54 billion in 2024 to USD 2.60 billion by 2032.

Some important manufacturers are Crydom, Omron, QIANJI, and Celduc. Each company is known for special strengths and different products.

When you pick a solid state relay, think about what your project needs. Check the voltage, current, and load type to choose the best one.

Try to find manufacturers with good certifications like UL, CE, and ISO9001. These help make sure your application is safe and works well.

Good customer support and easy-to-read instructions are very important. They help you fix problems and stay happy with your solid state relay for a long time.

1. Crydom

Overview

Crydom is often seen as a leader in solid state relays. The company started early with solid state switching technology. Now, it is part of Sensata Technologies. Crydom makes special solid state relay solutions for many industries. People like Crydom because their products are high quality and reliable. They also have good customer support. Here is a table that shows how Crydom compares to other big companies:

Key Products

Crydom has many solid state relays for industrial automation. Some models can handle high voltages and currents. This makes them good for tough jobs. The table below shows some popular features in Crydom's products:

Crydom relays often have extra protection and easy mounting. These features help you use them safely and reliably in your projects.

Strengths

Crydom has many years of experience. They focus on new ideas and strong quality control. Crydom is found in many countries, so you can get help almost anywhere. Their relays meet international rules, so you can trust them in important jobs. If you want a trusted solid state relay manufacturer, Crydom is a great pick.

2. Omron

Overview

Omron is a top company for solid state relays. The company started in Japan and now works all over the world. Omron is known for making products that last and work well. Many people use Omron relays in different industries. These relays help control machines and keep equipment safe. They also make workplaces safer. Omron spends money on research to make better products. This means you get new features and better performance.

Key Products

Omron has many types of solid state relays. You can use them for factories, HVAC, or home appliances. Some relays can handle big currents. Others are good for small jobs. Omron makes relays that are easy to install and last a long time. One popular relay is the G3DZ-F4PU Terminal SSR. It uses Push-In Plus technology. This lets you connect wires fast and safely. You save time and get a strong connection. Omron also makes relays with zero-crossing switching. This helps lower electrical noise. You can pick panel-mount or DIN-rail relays for your project.

Tip: Always check the datasheet for voltage and current ratings. This helps you pick the right relay for your job.

Here are some favorite features of Omron solid state relays:

Push-In Plus technology for quick wiring

Zero-crossing switching to cut down noise

Wide input voltage range

Small size for easy setup

Strengths

Omron is known for new ideas and high quality. Their relays meet tough rules like CE and UL. Omron gives good technical help if you have problems. They have many relay types, so you can find what you need. Omron is in many countries, so you get fast shipping and good service. If you want a trusted company, Omron is a great pick.

3. QIANJI

Overview

QIANJI is a trusted company for Solid State Relays. The company started in Zhejiang, China, in 2000. QIANJI is known for making good products and keeping customers happy. Their relays are used in many places around the world. You can find them in Australia, Europe, South America, and the Middle East. Many people say good things about QIANJI's relays. The company has important certifications like ISO9001, UL, TUV, and CE. These show that QIANJI cares about safety and quality.

Here is a quick look at QIANJI's reputation and network:

Note: QIANJI's big network means you can get help almost anywhere.

Key Products

QIANJI has many solid state relays to pick from. You can use them for machines or home devices. Some popular models are:

These relays work well and last a long time.

Strengths

QIANJI is special for a few reasons. Their relays work with many voltages, so you have more choices. The small size makes it easy to put them in different systems. They use smart heat technology to keep things cool and safe.

Here are some key strengths:

If you want a company with new ideas, good quality, and worldwide help, QIANJI is a good pick for your next project.

4. Lorentzzi

Overview

Lorentzzi is a new company in Solid State Relay Manufacturers. They focus on industrial automation and work with other businesses. Shon Xu owns the company and has almost 10 years of experience. This helps Lorentzzi know what businesses want. They help clients who need solid and safe automation solutions. Lorentzzi earns trust by making products that follow strict rules.

Note: Lorentzzi's team understands the problems in industrial automation. They use their knowledge to help you pick the best relay.

Key Products

Lorentzzi has many solid state relays for different jobs. You can choose relays for big machines or small devices. Their products are easy to install and last a long time. Here is a table with some popular features:

You can pick relays for different voltages and currents. Lorentzzi also makes custom relays if you need something special.

Strengths

Lorentzzi cares about what customers need. You get help from their business team and quick support. They use strong materials so relays work well in hard places. You can trust their relays to be safe and steady. Lorentzzi's team gives you advice and help after you buy.

Their relays last a long time.

You get support when you need it.

You can pick from many models for your project.

If you want a company with lots of experience and good customer service, Lorentzzi is a smart pick for automation.

5. Celduc

Overview

Celduc is one of the top solid state relay makers. They have a big presence in many countries. The company has about 200 workers in 4 countries on 3 continents. Their products are sold in almost 60 countries. Every year, Celduc makes over 1 million solid state relays. These relays are shipped all over the world. This means you can get their products and help almost anywhere.

Key Products

Celduc has many solid state relays for automation. If you work in factories or process control, you might use their products.

The Celduc SCB945600 is a double solid-state relay. It controls AC loads. It works with 8-30VDC input and 12-280VAC output. Many industries use this relay for heating and motors.

Celduc also makes relays with fieldbus interfaces. You can find these in:

Plastic injection machines

PET blow molding machines

Semiconductor factories

Tempered glass machines

These relays help make automation work well in many places.

Strengths

Celduc is known for new ideas and making reliable products. They have many years of experience and special technology. Here is a table that shows why Celduc is a good choice:

You can trust Celduc for safe, strong, and smart solid state relays for modern automation.

6. Crouzet

Overview

Crouzet is one of the oldest solid state relay companies. It started in 1921 and is based in Valence, France. Crouzet makes mechatronic parts for many industries. You can find their products in planes, energy, buildings, and machines. They have factories in France, Morocco, and China. Crouzet sells to over 100 countries. Their big network helps with support and fast delivery.

Here is a quick look at Crouzet's background:

Note: Crouzet has a long history and helps people all over the world.

Key Products

Crouzet has many types of solid state relays. You can pick from GN, GNR, or GNS Series. These relays work for both AC and DC loads. Some relays have special features to check system health. These are called diagnostic SSRs.

Some product highlights are:

DC Load SSRs for better control

Diagnostic SSRs that help you watch your system

Small size for easy setup

Fast switching for quick jobs

You can use Crouzet relays in factories, buildings, or energy systems.

Strengths

Crouzet is known for good quality and new ideas. They test their relays with heat and long use. The company spends a lot on research. This means you get the newest and most reliable relays.

You can ask for custom relays if you need something special. Crouzet's team will help you find what fits best. Their factories use machines to make sure every relay is the same. With offices in many places, you get help wherever you are.

If you want a relay from a company with lots of experience and new technology, Crouzet is a great choice.

7. MGR

Overview

MGR is a solid state relay manufacturer. They focus on industrial control systems. Their products are used in many factories and automation setups. MGR is known for making relays that work well in tough places. These relays help control machines and manage power. They also keep equipment safe and running. Many engineers trust MGR. The company uses advanced technology and checks quality carefully.

If you need relays for hard jobs, MGR has solutions. Their relays handle high currents and protect your equipment.

Key Products

MGR has different solid state relay series for many needs. The MGR-AH_3 Series and MGR-1 Series are popular in industrial control systems. The table below shows their main features and uses:

You can use these relays in many places. Factories and hospitals use them. The MGR-AH_3 Series is good for strong performance and extra protection. The MGR-1 Series is flexible for home and industrial uses.

Strengths

MGR relays have many good points:

Reliable Performance: They switch stably and last a long time.

Wide Application: You can use them in many industries like automation, medical, and automotive.

Advanced Protection: Over-temperature protection and strong heat dissipation keep systems safe.

Easy Monitoring: LED status displays help you check relay operation fast.

You can trust MGR relays to meet strict standards. They work well in tough environments and give dependable results.

8. Gold

Overview

Gold is a big solid state relay maker in China. Their relays are used in many places, like chemical fiber machines and CNC equipment. Gold is known for making good and dependable products. You can find their relays in factories in Europe, the USA, Russia, Brazil, South Korea, and India. Gold has important safety certificates like UL, CE, TUV, and RoHS. These show their relays are safe and follow strict rules.

Here is a quick look at Gold's reputation and customers:

Big companies like Luoyang North Glass and Fuyao Glass trust Gold's relays.

Key Products

Gold has many solid state relays to pick from. Their relays work well in electronics, automation, and heavy industry. Some popular models are:

You can get relays with high current and wide voltage ranges. Some have heatsinks to keep cool. Others give you smooth control for automation.

Strengths

Gold gives strong technical help and many relay choices. Their relays can handle up to 120A and work with 24 to 480VAC. You get features like zero-crossing or instant output. Gold makes relays for tough jobs, so you can trust them in hard places.

You get relays that work well for hard jobs.

You get help with setup and fixing problems.

You can pick relays that follow world standards.

Gold helps you with automation by giving you smart and safe solutions.

9. Autonics

Overview

Autonics is a trusted solid state relay maker. Their relays are used in many automation systems. The company started in South Korea. Now, they sell products all over the world. Autonics makes relays that help control machines safely. You can find their relays in factories and labs. They are also used in building automation. Autonics works hard to make better relays. They spend money on research to improve quality. Their focus on safety and new ideas helps customers.

Autonics gives easy solutions for automation problems.

Key Products

Autonics has different solid state relay series. These relays are good for process automation and control. The SR1 Series is a single-phase relay. It has a heatsink you can take off and replace. The SRH2 and SRH3 Series are three-phase relays. They have heatsinks built in. These models handle bigger loads and stay cool.

Here is a table with popular Autonics relay series:

You can pick the relay that fits your system. This gives you more choices for power and size.

Strengths

Autonics relays have good heat control. This keeps your machines safe. You can choose single-phase or three-phase models. The small size saves space in control panels. They are easy to install and switch reliably. Autonics relays meet safety rules from around the world.

Many relay types for automation jobs

Good heat control for longer life

Simple designs make setup fast

Safety certificates show they are reliable

If you need solid relays for automation, Autonics is a smart choice. Their products help you work safely and easily.

10. Fotek

Overview

Fotek is a solid state relay maker from Taiwan. Their relays are used in many automation systems. Fotek started in 1985 and became known for good quality and new ideas. The company makes relays that help you control machines safely. You can find Fotek relays in factories and packaging lines. They are also used in building automation. Fotek spends money on research to make better relays. Their products meet rules used around the world.

Fotek's relays switch equipment on and off reliably.

Key Products

Fotek has many solid state relays to choose from. You can pick relays for single-phase or three-phase loads. The SSR-25DA and SSR-40DA models are popular in factories. These relays handle high currents and work with AC or DC signals. Some Fotek relays have heatsinks built in. This helps keep your system cool and safe.

Here is a table with some favorite Fotek relay models:

You can use these relays for heaters, motors, and lights. Fotek relays work well even in tough places.

Strengths

Fotek relays have strong electrical isolation to keep things safe. You can pick from many models for different jobs. Their relays meet safety rules like CE and UL. Fotek gives clear datasheets and technical help.

You can install Fotek relays easily.

Their relays are small and save space.

Fotek relays last a long time and work well.

You get help from distributors all over the world.

Tip: Pick Fotek if you want relays that work well for automation and control. Their products help you build safe and smart systems.

Manufacturer Comparison

Product Range

These Solid State Relay Manufacturers have many products to pick from. Crydom and Omron make lots of models for factories and control systems. QIANJI has over 50 series and 1000 types, including relays for cars and home use. Celduc and Crouzet have relays for both AC and DC power. MGR and Gold make strong relays for big machines. Autonics and Fotek offer single-phase and three-phase relays for process jobs.

Tip: Pick a manufacturer with products that fit your project.

Certifications

Certifications show which companies follow strict safety and quality rules. Crydom, Omron, QIANJI, Gold, Autonics, and Fotek have ISO9001, UL, CE, or TUV certificates. Celduc and Crouzet also test their relays for EMC and voltage safety. These certificates help you trust the relays for important work.

ISO9001 means good quality management.

UL, CE, TUV show safety and following rules.

RoHS means the product is safe for the environment.

Innovation

Innovation means you get new features and better results. Crydom and Omron use smart switching and easy setup. QIANJI uses special cooling and small designs. Celduc has TMS² technology for longer relay life. Crouzet works on new diagnostic relays. Gold has many patents and gives strong technical help. Autonics and Fotek make relays that are easy to use and work well.

Crydom and Omron are known for new ideas and strong relays.

QIANJI is good for custom solutions and help with engineering.

Celduc and Crouzet make safer and smarter relays with new tech.

Gold, Autonics, and Fotek give strong relays and worldwide help.

Match the company's strengths to your needs for the best results.

Choosing Solid State Relay Manufacturers

Application Needs

Start by thinking about what your project needs. Every project is different and needs a certain relay. If you work with big machines, you need relays for high currents. If you make home appliances, you might want smaller relays. These use less power. Write down what your project needs. Think about voltage, current, and the kind of load. This will help you pick the right relay.

Tip: Make a list of your main needs before shopping. This will help you find the right product faster.

Reliability

It is important to pick relays that work well and last long. Choose companies that have good quality checks and happy customers. Look for certifications like UL or CE. These show the relays are safe and good quality. You can also ask for test results or real stories from users.

Here is a quick checklist for reliability:

Does the company have ISO9001 or a similar certificate?

Do other people say good things about the company?

Can you find test results or real examples?

Support

Good support helps you fix problems fast. Check if the company gives technical help and after-sales service. Some companies give guides, datasheets, and quick answers. Others may offer training or help with fixing problems. Price is important too. Compare costs, but also think about what you get. Sometimes, paying more means better help and longer-lasting relays.

Note: Pick Solid State Relay Manufacturers with good support and clear info. This will help you avoid problems later.

You have learned about what makes each Solid State Relay Manufacturer special. Every company has its own products and ways to help you. To pick the best one, think about what your project needs. Then, see which company matches those needs best. Look at the tables and tips to help you decide. If you are not sure, ask the manufacturers or talk to an expert for help.

FAQ

What is a solid state relay?

A solid state relay switches electricity using electronic parts. There are no moving parts inside. It works faster and lasts longer than mechanical relays.

How do you choose the right solid state relay manufacturer?

Look at what products the company offers. Check if they have safety certificates. Make sure their relays work well and last long. See if they help customers after buying. Pick a company that fits your project needs.

Why do certifications matter for solid state relays?

Certifications like UL, CE, and ISO9001 mean the relay is safe. These show the relay meets important quality rules. You can trust certified relays in your system.

Can you use solid state relays in home appliances?

Yes, you can use solid state relays at home. They help control things like ovens and washing machines. You get quiet use and longer-lasting devices.

What are the main benefits of solid state relays?

Solid state relays switch fast and last a long time. They work quietly and handle big currents. They resist shaking and do not wear out quickly.

See also

Relay Logic Explanation in PLC Control System

The difference between relay modules and individual relays

What do the contact forms SPST, SPDT, and DPDT of relays mean?

How to Test and Verify the Contact Load Capacity of Relays