PWM 8000W High-Power SCR Electronic Voltage Regulator for Motor/Fan/Drill Speed Control (0-220V Adjustable, WTH138 Model with Switch)

$4.91

SKU: FA2020-7-1 Category:

Description

This PWM 8000W High-Power SCR Electronic Voltage Regulator (WTH138 Model) is a professional-grade power management solution engineered for high-wattage AC applications. Featuring a high-performance bidirectional Silicon Controlled Rectifier (SCR), this unit provides seamless, stepless control over the voltage output, making it an essential tool for managing the performance of heavy-duty industrial and domestic equipment.
The WTH138 model is specifically designed for versatility, featuring an integrated physical power switch on the potentiometer. This allows users to completely cut the circuit without unplugging the device, ensuring both precision and safety. Whether you are regulating the speed of a high-torque drill, the temperature of an industrial furnace, or the airflow of a large exhaust fan, this regulator provides the stability and power handling required for 24/7 operation.
Key Features
  • Massive 8000W Peak Capacity: Specifically built to handle high-surge resistive loads like industrial heaters, electric kilns, and large-scale lighting arrays.
  • Integrated WTH138 Switch: The precision potentiometer includes a tactile “click” ON/OFF switch for instant circuit isolation.
  • Advanced Dual-Inductance Design: Features dual-high-current inductors and a professional RC snubber circuit to filter electrical noise and protect the SCR from inductive voltage spikes.
  • Stepless PWM-Style Regulation: Provides a smooth, linear output curve from 0V to 220V, allowing for granular control at low speeds or low heat levels.
  • Industrial-Grade Heat Dissipation: Equipped with an oversized, thickened aluminum heatsink and a reinforced PCB to maintain thermal stability under heavy current loads.
  • Flame-Retardant Construction: Built with high-temperature resistant materials and heavy-duty screw terminals for secure, low-resistance high-gauge wiring.

Additional information

Model

WTH138 (High-Power Series)

Input Voltage

AC 220V

Output Voltage

AC 0V – 220V (Adjustable)

Maximum Power

8000W (Instantaneous Resistive Load)

Continuous Working Power

3500W – 4000W (Recommended for long-term stability)

Voltage Regulation Range

0% – 100%

SCR Specification

High-current 80A / 1200V Bidirectional Thyristor

Efficiency

>90%

Dimensions

Approx. 150mm x 60mm x 47mm (Including knob and heatsink)

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