Solid State Relay | SSR-10DA/25DA/40DA | 220V AC to 3-32V DC | 10A-40A Heat Sink Mount

The CG SSR-10DA, 25DA, and 40DA Solid State Relay provides reliable, silent switching for industrial control systems. This single-phase DC control AC relay accepts a 3-32VDC input signal to switch 220V AC loads up to 40A, offering superior longevity and noise-free operation compared to mechanical relays. The integrated aluminum heat sink ensures stable performance under continuous high-current loads. Features and Benefits - 10A, 25A, and 40A Load Current Ratings - Choose the model that precisely matches your application's power requirements for optimal safety and efficiency. - 3-32VDC Wide Input Control Voltage - Compatible with a broad range of logic-level controllers, PLCs, and microcontroller outputs (like Arduino or Raspberry Pi) without needing additional driver circuits. - Integrated Aluminum Heat Sink with Plastic Cover - Dissipates heat effectively for reliable continuous operation and provides safe insulation for user protection. - Optical Isolation (Photo-Triac) - Creates complete electrical separation between the low-voltage control circuit and the high-voltage load, protecting sensitive electronics from voltage spikes and noise. - Zero-Crossing Turn-On - The relay switches AC power only when the voltage crosses zero, eliminating inrush current surges and electrical noise that can damage connected equipment and cause interference. Applications - Industrial Automation and Process Control - Ideal for controlling heaters, solenoids, motors, and lighting in machinery and production lines with fast, silent switching. - Temperature Control Systems - Perfect for interfacing temperature controllers or PID controllers to manage heating elements in ovens, incubators, or plastic welding equipment. - DIY Electronics and Prototyping - An excellent choice for hobbyists and engineers to safely interface low-voltage microcontrollers with high-power AC devices for home automation or custom projects. - Commercial Appliance Control - Suitable for upgrading or repairing control circuits in commercial food service equipment, packaging machines, or other AC-powered devices. Note: For optimal performance and lifespan, ensure proper heat sinking by mounting the relay on a suitable metal surface or within an enclosure with adequate airflow, especially when operating near its maximum current rating.