Three-phase SCR power controllers are essential for precise control of large motors, heating elements, and industrial equipment. This article highlights five top options, comparing input signals, voltage ranges, and supporting features to help buyers choose the right unit for 380V, 440V, or 110V-class three-phase applications. Each product section includes a direct Amazon link, an image, and key features to aid quick decision-making.
The following table provides a quick snapshot of the featured products, focusing on voltage range, current capacity, and notable control features. Use this as a guide before diving into detailed specifications.
| Product | Current | Key Control | Link | |
|---|---|---|---|---|
| UDWTMTPRT 380V Three Phase SCR Power Controller | 380V Three Phase | 250A / 300A / 350A | 4-20mA, 2-10V, 1-5V | Amazon |
| Aigoodele 380VAC 100A Three Phase | 380V AC | 100A | 0-10V, 4-20mA, 1-5V, potentiometer | Amazon |
| LVSEDTAL 90A 3 Phase SCR Controller | 330-440VAC | 90A | 0-10V, 4-20mA | Amazon |
| MDST200A Three Phase Rectifier Bridge | Various three-phase ratings | 200A | SCR technology, full wave rectification | Amazon |
| Aigoodele TG20-G 16KW Three-Phase SCR | Three-Phase | High power (16 kW) | PID, 4-20mA, RS485 | Amazon |
UDWTMTPRT 380V Three Phase SCR Power Controller
This high-capacity SCR power controller supports 380V three-phase systems with selectable current ratings at 250A, 300A, and 350A. It integrates multiple analog control options including 4-20 mA, 2-10 V, and 1-5 V signals to regulate output with precision. The device is suitable for motor control, heating elements, and other industrial loads requiring robust SCR regulation. Safety and protective features are designed to endure demanding environments common in manufacturing settings.
380VAC 100A Three Phase Voltage Regulator Power Controller Module
Designed for three-phase power and voltage regulation, this module is suitable for power regulators, thyristor power supplies, and industrial heating control. It supports multiple input signals including DC 0-5V, 0-10V, 0-10 mA, and 4-20 mA, with a 10K potentiometer for manual adjustment. This versatility makes it a practical option for temperature control, heating elements, and other applications requiring precise voltage and current control across a three-phase network.
LVSEDTAL 90A 3 Phase SCR Power Controller
With a voltage range suitable for 330-440 VAC three-phase systems, this LVSEDTAL controller emphasizes stability and ease of operation. It supports multiple output modes and offers 0-10V and 4-20 mA control options, enabling precise voltage, current, and power management. The unit is appropriate for processes requiring reliable regulation for temperature, speed, or load control, all within a compact form factor suitable for industrial control panels.
MDST200A Three Phase Rectifier Bridge
This three-phase rectifier bridge provides full-wave rectification suitable for motor control, energy conversion systems, and industrial power management. Rated at 200A, it is designed to handle the demands of heavy-duty automation, renewable energy integrations, and motor drives in manufacturing environments. The SCR-based technology supports reliable current regulation and stable output across fluctuating loads.
Comidox 1Pcs SNR8503M Three Phase DC Brushless Motor Controller
Engineered for high-performance BLDC motors, this PWM driver board operates between DC 6-80V and delivers up to 1600W, suitable for precise motor control without Hall sensors. It features a 32-bit MCU core for development and debugging, plus protection against reverse connections to safeguard the power system. This module is ideal for robotics, servo drives, and complex motion control projects requiring efficient motor regulation.
Aigoodele 220VAC 100A Single Phase Voltage Regulator
While primarily designed for single-phase installations, this Aigoodele unit demonstrates the broader market for regulated SCR-based control in voltage and current management. It supports input signals including DC 0-5V, DC 0-10V, 0-10 mA, and 4-20 mA. It is suitable for smaller three-phase systems when used with appropriate phase-balancing strategies and is often considered for auxiliary or pilot control in mixed-phase plants.
100A 3 Phase SCR Power Controller with RS-485
This 100A three-phase controller targets compact industrial setups requiring RS-485 communication for integration with building management systems or PLCs. It offers 0-10V and 4-20 mA control options along with standard safety features. Its RS-485 interface enables remote monitoring and control, making it a practical choice for decentralized automation architectures where multiple controllers share a common data network.
Aigoodele TG20-G 16KW Three-Phase SCR Controller
The TG20-G model handles high-power three-phase regulation with 16 kW capacity, featuring PID control, 4-20 mA, DC voltage input, and optional potentiometer input. It includes overcurrent and thermal protection plus a cooling fan, suitable for demanding industrial heating, motor control, and process regulation tasks. The smart display and RS485 connectivity support integration into modern control systems.
Buying Guide: Key Purchase Considerations
- Voltage and Phase Compatibility: Confirm the controller’s rated voltage (e.g., 380V or 440V) and its three-phase compatibility with your equipment to avoid undersizing or overvoltage conditions.
- Current Rating and Overload Protection: Match current capacity (A) to your load. Look for protective features such as overcurrent, short-circuit protection, and thermal management.
- Control Interfaces: Evaluate input options (0-10V, 4-20mA, potentiometer, PWM) and digital interfaces (RS-485) for integration with existing control systems or PLCs.
- Regulation Mode and Output: Decide between voltage, current, or power regulation and whether ON/OFF or continuous control better suits the process requirements.
- Protection and Reliability: Consider devices with reverse polarity protection, overtemperature safeguards, and robust construction for industrial environments.
- Heat Management: High-power controllers require adequate cooling or fans. Ensure enclosure and ventilation meet the intended duty cycle.
- Size and Mounting: Check whether the unit fits in control panels or compact enclosures, including mounting footprint and connector accessibility.
- Diagnostics and Monitoring: RS-485 or similar communication enables remote monitoring, data logging, and fault diagnostics for preventive maintenance.
- Application Fit: Align the product with the target application—motor drives, heating elements, or process control—considering response time, regulation precision, and operational stability.