This threephase solid state relay kit provides DC control of a 380V AC threephase load. The SSR3 DCAC complete set includes the relay, a heat sink, and a cooling fan, offered in current ratings of 40, 60, 80, 100, and 150A under model 150DA. It is designed for reliable switching of current threephase equipment with a compact, readytoinstall package. Key benefits Quiet, fast switching with no mechanical wear, improving reliability and reducing maintenance compared with mechanical relays. Complete cooling solution: heat sink and fan included to maintain stable operation during current use. Readytoinstall kit: all components in one package for straightforward integration into 380V threephase systems. DC control input with AC 380V output enables convenient control from standard DC control circuits or PLCs. Available in multiple current ratings (40/60/80/100/150A) to match your load and performance requirements, with a singlepiece package (model 150DA). Key attributes Functionality: Threephase solid state relay (SSR3) with DC control input for AC loads. Output voltage: 380V AC. Load current: 40A standard, with options for 60A, 80A, 100A, and 150A (40/60/80/100/150A). Control: DC control signal. Kit contents: SSR module, relay, heat sink, and cooling fan (Complete Set). Package: 1 piece per . Model: 150DA. Compatibility: Suitable for threephase loads in industrial automation and equipment control. Construction features: Includes a heat sink and fan to help maintain performance under higher current operation. Technical specifications at a glance Type: Threephase Solid State Relay (SSR3 DCAC) Control input: DC Output: AC 380V Load current ratings: 40A, 60A, 80A, 100A, 150A (40/60/80/100/150A) Package contents: SSR module, relay, heat sink, and fan Model: 150DA Packaging: 1 piece per Applications and use cases Industrial motor control: Drive a threephase motor on conveyors, mixers, or processing lines with DC control signals and 380V power. Pumps and compressors: Switch threephase pumps or air/compressor systems in manufacturing or facility environments, benefiting from silent operation and fast switching. Heaters and thermal loads: Control threephase heating elements or furnace loads in industrial processes with reliable, solidstate switching. General automation: Integrate intoPLC or other DC control schemes to manage current threephase equipment in packaging, metalworking, or woodworking facilities. What is included and how it helps Complete Set: Includes the SSR3 module, a relay, a heat sink, and a cooling fan to ensure effective thermal management and reliable operation at higher current levels. Readytouse: Designed for straightforward installation in 380V threephase systems with a DC control input, reducing wiring complexity and setup time. Notes Verify load current and duty cycle to select the appropriate rating (40/60/80/100/150A) and ensure proper cooling with the included heat sink and fan. This description reflects the product's stated features: threephase SSR with DC control, AC 380V output, 40A base rating with options up to 150A, and a complete set including relay, heat sink, and fan (model 150DA).