🔌 Solid State Voltage Regulator SSR-40VA (40A Adjustable AC Controller)
⚡ Product Description
Take full control of your power output with the SSR-40VA Solid State Voltage Regulator, designed for precise AC power adjustment in industrial and DIY applications. Unlike standard relays that simply switch ON/OFF, the SSR-40VA allows you to smoothly regulate voltage output, making it ideal for heating elements, lighting dimming, and speed control.
This unit operates as a solid-state voltage regulator (SSVR), using advanced semiconductor components to deliver silent, spark-free, and highly reliable performance. It is specifically designed for resistive loads, providing stable and adjustable power control from 24V to 380V AC.
With its 40A capacity and phase-angle control (phase cut-off) technology, the SSR-40VA ensures efficient energy management while protecting your equipment from sudden surges.
🚀 Key Features
- ⚡ Adjustable Power Output – Control AC voltage smoothly (not just ON/OFF)
- 🔌 High Load Capacity – Supports up to 40A current
- 🎛️ Potentiometer Control – Requires 470–560KΩ 2W potentiometer for adjustment
- 🔇 Silent Operation – No mechanical contacts or noise
- ⚙️ Phase Angle Control – Efficient power regulation via phase cut-off
- 🔥 Ideal for Resistive Loads – Perfect for heaters and heating elements
- 🛡️ Durable & Reliable – Long lifespan with minimal maintenance
- 💡 Compact Design – Easy panel mounting for control systems
📊 Technical Specifications
| Parameter | Value |
|---|---|
| Model | SSR-40VA |
| Rated Current | 40A |
| Load Voltage | 24–380V AC |
| Control Type | Variable resistor (potentiometer) |
| Control Resistance | 470–560KΩ / 2W |
| Switching Method | Phase angle (cut-off) |
| Frequency | 50Hz / 60Hz |
| Operating Temperature | -30°C to +80°C |
| Application Type | Resistive loads only |
Note: This is a voltage regulator (VA), not a standard switching relay like DA models. Click here for DA models.
🔧 Applications
Perfect for applications requiring variable power control, including:
- 🔥 Heating elements & industrial heaters
- 🍳 Ovens, hot plates & furnaces
- 💡 Light dimming systems
- ⚙️ Fan speed control (AC motors – limited use)
- 🧪 Laboratory equipment
- 🏭 Industrial automation systems
The SSR-40VA is widely used where precise energy control and efficiency are essential.
📦 What’s in the Box
- 1 × SSR-40VA Solid State Voltage Regulator
(Potentiometer not included)
⚠️ Important Notes
- ❗ Designed for resistive loads only (not ideal for inductive loads like motors)
- ❗ Requires an external potentiometer for operation
- ❗ Install with a heat sink for high-load applications
- ❗ This is a voltage regulator (VA), not a simple ON/OFF relay like SSR-40DA
- Click here to see the complete set for ON/OFF systems with heatsink and temperature controller.
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