SSR-40VA 40A Solid State AC Voltage Regulator 24-380VAC Phase Control

The SSR-40VA Solid State Voltage Regulator (SSVR) is a high-power electronic control device designed for manual regulation of AC power supplied to resistive loads. Utilizing advanced solid-state phase-angle control technology, this regulator allows smooth and precise adjustment of output power, making it ideal for heating elements, industrial process control, lighting systems, and other resistive load applications requiring variable power control.

Designed to handle demanding applications, the SSR-40VA supports load currents of up to 40A and operates with AC load voltages ranging from 24VAC to 380VAC. Its robust construction and solid-state design provide reliable, maintenance-free operation without the wear and mechanical limitations associated with traditional variable transformers or electromechanical controllers.

The regulator operates using phase-cut control, adjusting the conduction angle of the AC waveform to vary the amount of power delivered to the load. This method provides smooth and efficient power regulation, enabling precise temperature control in heaters, ovens, furnaces, and other thermal processes.

For manual adjustment, the SSR-40VA requires an external potentiometer in the range of 470k to 560k with a 2W power rating. A nominal 500k potentiometer is recommended for 220VAC systems operating at 50Hz. This simple control method allows users to easily adjust output power according to application requirements.

The solid-state architecture ensures silent operation, high reliability, and long service life, making the device particularly suitable for industrial and commercial installations where continuous operation and minimal maintenance are essential. With no moving parts, the regulator eliminates contact wear, arcing, and mechanical failures.

Its high current capacity makes the SSR-40VA suitable for controlling large resistive loads such as industrial heaters, infrared heating systems, hot plates, drying equipment, and temperature-controlled manufacturing processes.

Key Features

Solid-state voltage regulator (SSVR)

Rated load current: 40A

Load voltage range: 24VAC to 380VAC

Manual AC power regulation

Phase-angle (phase-cut) control technology

Suitable for resistive loads

Requires 470k -560k , 2W potentiometer

Recommended 500k potentiometer for 220VAC systems

Smooth and precise power adjustment

Silent operation with no moving parts

High reliability and long service life

Maintenance-free solid-state design

Compact industrial control solution

Applications

Industrial heating systems

Ovens and furnaces

Infrared heaters

Hot plates and heating elements

Temperature control systems

Plastic processing equipment

Drying and curing equipment

Laboratory heating applications

Lighting intensity control for compatible loads

General resistive load power regulation

Technical Specifications

Model: SSR-40VA

Device Type: Solid State Voltage Regulator (SSVR)

Rated Current: 40A

Load Voltage: 24-380VAC

Switching Method: Phase Cut-Off Control

Input Control: External Potentiometer

Potentiometer Range: 470k -560k

Recommended Potentiometer: 500k , 2W

Potentiometer Accuracy: 20k

Frequency: 50Hz operation

Summary

The SSR-40VA is a powerful 40A solid-state AC voltage regulator designed for smooth manual control of resistive loads. Featuring phase-angle power regulation, compatibility with 24-380VAC systems, and maintenance-free solid-state operation, it provides an efficient and reliable solution for industrial heating, temperature control, and variable power applications.

What's in the box
1 x SSR-40VA 40A Solid State AC Voltage Regulator 24-380VAC Phase Control