Precise temperature control is critical in numerous industrial production fields, including glass manufacturing, powder coating systems, and especially semiconductor fabrication processes.
Solid-state relays (switching control) can be used for precise heating control, but their accuracy is slightly inferior to that of thyristor power controllers (proportional control).
Therefore, and to help you easily and clearly find thyristor power controller manufacturers and suppliers, we – Lorentzzi Electric, as a professional SCR power controller supplier, have prepared this guide and article.
1. Lorentzzi Electric(Chinese thyristor power controller supplier)

As a high-quality supplier in China, Lorentzzi Electric can provide customers with single-phase and three-phase thyristor power controllers, as well as economical and multi-functional thyristor power controllers.
Lorentzzi Electric’s economical thyristor controllers are open-loop type, employing advanced phase-shift control technology to achieve precise temperature control, and are significantly more affordable. However, these controllers lack communication capabilities, and their functionality is far less comprehensive than that of closed-loop thyristor controllers.
Our closed-loop thyristor controllers, on the other hand, feature soft start, soft end, communication, constant power, constant voltage, communication and constant current functions to meet the diverse needs of different customers.
Therefore, whether you are on a tight budget or want more functions, Lorentzzi brand thyristor power controllers can meet all your heating control needs.
The following three products are our most popular and competitive thyristor power controllers for your selection:
2. Eurotherm(British SCR power controller supplier)

Eurotherm is a long-established British temperature control brand that primarily offers four thyristor power controller product lines: Efit, DIN-A-MITE DIN rail series, Epack and Epower.
Efit, DIN-A-MITE DIN rail series, and Epack thyristor power regulators are mainstream products for low and medium power applications, while Epower is a high-end product for high power applications.
All of their products feature high-precision heating power control and are widely used in heat treatment furnaces, semiconductors, infrared heating, silicon carbide heating, and photovoltaic equipment.
Eurotherm SCR power controllers are high-end industrial-grade power controllers, offering advantages in control accuracy, load diagnostics, communication, and long-term stability. However, they are expensive and difficult to debug, making them unnecessary for typical low-cost projects.
3. Advanced Energy(American SCR power regulator supplier)

Advanced Energy is a US-based technology public company(NASDAQ: AEIS) that primarily manufactures thyristor power controllers called Thyro.
Their Thyro series thyristor power controller can be furtherly divided into Thyro-A, Thyro-S, Thyro-A+, Thyro-PX, Thyro-PX Modular Solution, Thyro-PX DC and Thyro-XD™ series.
If cost-effectiveness and a compact design are your priorities: Select Thyro-A or Thyro-S. For enhanced temperature control and bus communication: Select Thyro-A+. For high-power industrial furnaces and high-precision requirements: Select Thyro-PX (Thyro-PX DC for DC applications, PX Modular for high-current water-cooling applications). For semiconductor applications requiring fast response, temperature control, and pyrometers: Select Thyro-XD.
4. Noker Electric(Chinese thyristor power controller supplier)

Noker Electric is a company and supplier located in Xi’an, Shaanxi Province. The company primarily supplies motor soft starters, thyristor power controllers, active harmonic filters, static var generators, and solar water pump inverters.
According to its product line, Noker Electric offers single-phase and three-phase thyristor power controllers. Its single-phase thyristor power controllers can output currents up to 800A, while its three-phase products can reach up to 10kV and 6000kW output power. Furthermore, its products can integrate PID temperature controllers, simplifying wiring diagrams and making wiring more convenient.
Noker Electric’s thyristor regulators support common feedback control modes such as constant voltage, constant current, and constant power, and feature two main triggering methods: phase shift and zero-crossing power adjustment, making them adaptable to resistive loads and some inductive loads.
Furthermore, they have an RS-485 (Modbus-RTU) communication interface, allowing for easy connection with PLCs, temperature controllers, or industrial PCs.
Therefore, if you are looking for high-voltage, high-power output thyristor power controllers, you may consider Noker Electric’s products.
5. Fuanshi Technology(Chinese SCR power regulator supplier)

Fuanshi Technology is the abbreviation for Beijing Fuanshi Technology Co., Ltd., a company specializing in industrial intelligent temperature control and semiconductor furnaces, with offices in Beijing and Cangzhou.
The output current of the Fuanshi thyristor power controller ranges from 25 amps to a maximum of 1000 amps.
After reading their thyristor power controller user manual, we found that their product lacks constant voltage, constant current, and constant power control methods, and its temperature control accuracy may be lower than that of our own Lorentzzi high-end closed-loop SCR power regulator.
6. Libratherm Instruments(Indian SCR power controller supplier)

Libratherm is a Mumbai-based company whose products include SCR power controllers, PID temperature controllers, thyristor trigger boards, and data loggers.
Libratherm’s thyristor power controllers have a significant market share in India, the Middle East, and Southeast Asia, primarily replacing expensive high-end European and American brands (such as Advanced Energy and Eurotherm). These products are designed to provide cost-effective and durable power regulation solutions for medium to large-scale industrial electric heating systems.
Browsing their website reveals that Libratherm offers thyristor power controllers not only for AC heaters but also for DC heaters.
Their thyristor power controllers can be categorized into phase angle controllers, zero-crossing switches (which can be considered solid-state relays), and DC rectifiers.
7. CD Automation(Italian SCR power regulator supplier)

CD Automation is an Italian company whose main products are silicon controlled rectifier (SCR) power controllers and temperature controllers.
Their SCR power controllers are divided into the REVO S series, CD3000 series, REVEX series, REVO C, REVO PN, and REVO PC series.
The REVO S series is an entry-level SSR/solid-state relay power controller designed to replace traditional mechanical contactors. The CD3000 series, REVEX series, REVO C series, REVO PN series, and REVO PC series are power regulators. Power regulators offer more accurate temperature control than solid-state relays. You can refer to our article for more information: SCR Power Regulator vs Solid-State Relay: Which One Is Better?
Their REVO PN series thyristor power controllers are single-phase and designed for multi-channel heaters, such as those that can control 4, 8, 12, 16, 20, and 24 heaters.
8. Fuji Electric(Japanese SCR power regulator supplier)

Fuji Electric is a Japanese SCR power controller supplier headquartered at Gate City Osaki East Tower, 1-11-2 Osaki, Shinagawa-ku, Tokyo, Japan (Zip code: 141-0032).
After browsing their website, I found that some of their thyristor power regulators look the same as CD Automation’s products. They also offer REVO PC and REVO PN multi-channel power controllers, REVEX PA power controllers with advanced features, REVEX power controllers, and REVO C power controllers with communication capabilities. Therefore, we can conclude that CD Automation manufactures these products for Fuji Electric.
Also, Fuji Electric also has their own thyristor power controllers, like APR-V power controller with communication function, PWMAPR IGBT power controller and APR-D power controller.
9. Aigoodele(Chinese SCR power regulator supplier)

Aigoodele is a brand of Zhejiang Lingshine Electric Co., Ltd, this company’s main products include: power thyristor rectifiers (SCR), frequency converters (VFD), soft starters, solid-state relays (SSR), solid-state voltage regulators, KP, ZP, MTC, MDS, MDQ, MDC, MDK rectifiers, etc.
Aigoodele can manufacture single-phase SCR power regulators with a maximum output current of 200 amps, and its three-phase SCR power regulators can output a maximum current of 630 amps.
10. Jumo(Germany SCR power regulator supplier)

JUMO is a renowned German brand of sensing and process automation, enjoying a global reputation in temperature measurement, sensors, and PID temperature control instruments.
JUMO’s SCR thyristor power controllers/switches are widely used in industrial heat treatment and electric heating applications.
Within its product line, the TYA HL301/302/303 series are JUMO’s high-end flagship three-phase SCR power regulators, offering constant voltage, constant current, and constant power output modes. The TYA BL301/302/303 series are slightly lower-end models, not offering constant voltage, constant current, and constant power output modes.
JUMO’s TYA S201/S202 power regulators are economy products; the TYA S201 is suitable for controlling single-phase loads, while the TYA S202 is suitable for controlling three-phase loads.
Conclusion
In summary, all the 10 thyristor power controller suppliers listed above deliver reliable quality. However, if you are looking for premium quality, responsive service and competitive pricing all at once, we highly recommend Lorentzzi Electric’s thyristor power regulators. At the same cost level, you will obtain identical functions and consistent control accuracy.
Contact us for a quotation today!








