SSR-40AA Solid State Relay
The SSR-40AA Solid State Relay is a single-phase electronic switching device designed to control AC loads using an AC control signal. Unlike traditional electromechanical relays, this solid-state relay contains no moving parts, resulting in silent operation, faster switching, improved reliability, and a significantly longer service life. The SSR-40AA supports AC input and AC output, making it suitable for a wide range of industrial and commercial control applications. The model designation indicates a 40A output rating, an AC input range of 80-250VAC, and an AC output range of 24-380VAC.
The relay features zero-cross switching technology, which turns the load on or off at the zero-crossing point of the AC waveform to reduce electrical noise, EMI, and RFI. This control method makes it especially suitable for resistive, capacitive, and non-saturated inductive loads. The SSR-40AA also incorporates high dielectric strength, excellent insulation, surge protection, and over-temperature protection to ensure reliable operation in demanding environments.
Features:
- Solid-state switching technology.
- Silent operation without mechanical contacts.
- Zero-cross switching.
- Fast switching response.
- No moving parts for extended service life.
- High isolation between the input and output circuits.
- Built-in over-temperature protection.
- High surge current capability.
- High surge voltage resistance.
- Compact panel-mount design.
- Suitable for continuous operation.
- Compatible with industrial automation systems.
Specifications:
| Specification | Value |
|---|---|
| Model | SSR-40AA |
| Relay Type | Single-Phase Solid State Relay |
| Input Type | AC |
| Output Type | AC |
| Rated Output Current | 40A |
| Input Voltage | 80-250VAC |
| Output Voltage | 24-380VAC |
| Control Method | Zero Cross |
| Leakage Current | 5mA Maximum |
| Response Time | 8.3ms (60Hz) |
| Peak Voltage | 1200VAC Minimum |
| Dielectric Strength | 4kVrms |
| Insulation Resistance | 100MΩ / 500VDC |
| Operating Temperature | -40°C to +80°C |
| Housing Material | Flame-Retardant ABS (UL94V-0) |
| Mounting Type | Panel Mount |
Pinout:
| Terminal | Function |
|---|---|
| 1 | AC Load Output |
| 2 | AC Load Output |
| 3 | AC Control Input |
| 4 | AC Control Input |
Applications:
- Temperature controllers.
- Industrial automation systems.
- Heating elements.
- Electric furnaces.
- Packaging equipment.
- Lighting control systems.
- Motor control systems.
- PLC-controlled equipment.
- Injection molding machines.
- Process control systems.
Package Includes:
- 1 × SSR-40AA Solid State Relay.