Experience precise and reliable voltage control with this high-performance SCR Voltage Regulator, designed for heavy-duty applications up to 4000W. Crafted with durable cold rolled steel and aluminum alloy materials, this regulator features an all-aluminum heat sink and a high-temperature resistant circuit board to ensure long-lasting stability and efficient heat dissipation. Equipped with an original imported STMicroelectronics SCR (model BTA41-600B/800B), it guarantees superior surge protection and smooth voltage adjustment. Key Features: · **Wide Adjustable Output Voltage:** Steplessly adjustable from 0 to 220V under load conditions, allowing fine-tuned voltage control for various applications. Note: Voltmeter does not function below 5V output. · **High Power Capacity:** Supports up to 4000W limit power for resistive loads (such as tungsten filament lamps and heating wires), with a rated current of 9A and limit current up to 18A. Suitable for heavy-duty resistive load operations. · **Advanced Protection Circuitry:** Integrated peak voltage absorption circuit with multiple protections including anti-surge, anti-spike, and RC absorption to safeguard the SCR and connected devices from electrical damage. · **Premium Components:** Utilizes original imported SCR chips, thick copper parts within multifunctional industrial sockets for high current capacity, excellent contact, and enhanced safety. · **Robust and Safe Construction:** The metal casing is flame retardant, resistant to high temperatures, deformation, and rust, providing effective protection against heavy pressure and environmental stress. The metal shell must be safely grounded for optimal safety. · **Smooth Stepless Speed Adjustment:** Allows free and continuous voltage control without gear limitations, enabling precise tuning for diverse industrial and electrical applications. · **Compact Size:** Measures approximately 5.3cm x 10cm x 8.4cm (2.1in x 3.9in x 3.3in), making it easy to install in various setups. Specifications: · Material: Cold rolled steel, aluminum alloy, thyristor, PCB · Output Voltage: 0-220V adjustable (stepless under load) · Limit Power: 4000W (resistive load) · Rated Current: 9A · Limit Current: 18A · Thyristor Model: STMicroelectronics BTA41-600B/800B · Size: 5.3cm x 10cm x 8.4cm (2.1in x 3.9in x 3.3in) · Overload Protection Switch: Yes Package Includes: · 1 x SCR Voltage Regulator This SCR Voltage Regulator is an ideal solution for precise voltage control in industrial, heating, and lighting applications requiring high power and reliable protection. Its durable construction, advanced components, and stepless adjustment make it a versatile and safe choice for professional use.