⚡ SSR-40AA Solid State Relay (40A AC to AC)
Control high-power AC devices with precision using the SSR-40AA Solid State Relay.
Designed for industrial and automation applications, this relay delivers silent, fast, and reliable AC-to-AC switching with zero mechanical wear.
⚡ 40A High PowerHandles heavy-duty AC loads with ease.
🔌 AC to AC ControlOperates using AC input signal.
🔇 Silent SwitchingNo noise, no sparks, no moving parts.
⚙️ Zero-Cross TechReduces EMI and protects equipment.
The SSR-40AA is a high-performance AC-controlled solid state relay
designed for switching AC loads using an AC input signal. Built with advanced semiconductor technology,
it offers long lifespan, high reliability, and fast switching speeds.
Perfect for industrial heating, automation systems, and high-power electrical control,
this relay ensures stable operation with minimal maintenance.
| Parameter | Value |
|---|---|
| Model | SSR-40AA |
| Load Current | 40A |
| Input Voltage | 80–250V AC |
| Output Voltage | 24–380V AC |
| Control Type | AC to AC |
| Trigger | Zero-cross |
| Temp Range | -40°C to +80°C |
🔧 Applications
The SSR-40AA is ideal for AC-controlled systems and is widely used in:
- 🔥 Industrial heaters & ovens
- ⚙️ Automation systems & control panels
- 🏭 Packaging & manufacturing machines
- 💡 High-power lighting systems
- 🧪 Laboratory and testing equipment
- 🔌 Pumps, compressors & AC load switching
Its AC input compatibility makes it especially useful where DC control is not available.
📦 What’s in the Box
- 1 × SSR-40AA Solid State Relay
⚠️ Installation Tips
- ❗ Always use a heat sink when operating above 10–15A for optimal performance
- ❗ Ensure proper ventilation to prevent overheating
- ❗ Suitable for resistive and some inductive loads (with proper derating)
- ❗ Verify correct AC control input before installation
Q: Can I use this with DC control?
A: No, this model requires AC input. Use SSR-40DA for DC control.
Q: Do I need a heat sink?
A: Yes, especially above 10–15A load for safe operation.
Q: Is it suitable for motors?
A: It can be used, but proper derating is required for inductive loads.
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