4000W Original High-Power Thyristor Electronic Voltage Regulator delivers heavy-duty power control capabilities for demanding electrical heating, motor speed regulation, and lighting adjustment tasks. This robust electronic controller utilizes an advanced high-power silicon-controlled rectifier (SCR) circuit to manage alternating current loads efficiently. Consequently, it provides smooth and continuous output voltage adjustment from 10 volts up to 220 volts. Furthermore, the integrated thick-film aluminum heat sink dissipates thermal energy rapidly during extended high-capacity operations. Therefore, DIY enthusiasts and professionals can easily regulate high-wattage appliances with exceptional reliability and safety.
Key Features:
- High Power Capacity: Handles up to 4000W of maximum resistive power load under recommended operating conditions.
- Wide Regulation Range: Allows precise output adjustment from 10V to 220V AC using an ultra-smooth rotary potentiometer.
- Advanced SCR Design: Employs a high-power thyristor circuit engineered to withstand high current surges and thermal stress.
- Thermal Management: Incorporates a large aluminum heat sink to ensure stable heat dissipation during continuous loads.
- Wave Voltage Protection: Features anti-spike and surge absorption circuits to protect the internal semiconductor components.
Technical Specifications:
- Input Voltage: AC 220V
- Output Voltage: AC 10V – 220V (Adjustable)
- Maximum Power: 4000W (Resistive load limit)
- Rated Current: 20A (Maximum operational current)
- Thyristor Model: BTA41600B or equivalent high-power SCR
- Conversion Efficiency: ≥ 90 percent
Mechanical Specifications:
- Circuit Board: High-temperature FR4 double-sided glass fiber PCB
- Heat Sink Material: Thickened black anodized aluminum fin array
- Control Interface: Panel-mounted rotary potentiometer knob with dial scale
- Terminals: Heavy-duty screw terminals for secure high-current wire connections
Dimensions:
- Module Length: ≈ 85.0 mm
- Module Width: ≈ 55.0 mm
- Module Height: ≈ 38.0 mm
- Weight: ≈ 150.0 g
Pinout and Wiring:
- AC IN (Live): Connects to the incoming 220V AC live wire supply.
- AC IN (Neutral): Connects to the incoming AC neutral wire line.
- AC OUT (Load 1): Output terminal connecting directly to the powered load device.
- AC OUT (Load 2): Secondary output terminal completing the switched AC circuit loop.
- Note: However, users must note that this regulator requires an attached resistive load to measure output voltage changes accurately.
Datasheet Reference:
Commonly Used in:
- Electric Water Heaters: Regulating heating element temperatures in industrial or domestic systems.
- AC Motor Speed Control: Adjusting the rotational velocity of universal electric motors and fans.
- Lighting Dimmers: Controlling brightness levels for high-intensity incandescent and tungsten lamps.
Applications:
- Temperature Regulation: Controlling soldering irons, kilns, and thermal molding equipment.
- Furnace Control: Managing power delivery to electric heating furnaces and ovens.
- Speed Governance: Adjusting small AC machinery, exhaust fans, and DIY workshop tools.
Equivalent Models:
- 2000W Thyristor Voltage Regulator: A lower-capacity power control module, although unsuited for heavy 4000W appliance loads.
- 10000W High-Power SCR Regulator: An industrial-grade voltage governor, whereas the 4000W model perfectly suits standard workshop applications.
- PWM DC Motor Speed Controller: A DC-specific regulator option, unlike this unit which operates directly on AC mains power.
Package Includes:
- 1 × 4000W Original High-Power Thyristor Electronic Voltage Regulator
- 1 x Rotary Control Knob with Dial Plate

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