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Profile: ATO Solid State Relay is an international distributor of electronic and electrotechnical components, workshop equipment and industrial automation solutions. Our vision is to be a world leader and early innovator in mission-critical SSR-rich solutions and insights while satisfying the world's growing need for safety, efficiency and a clean environment and being a partner, employer and neighbor of choice. Our solid state relays are the fundamental building blocks needed for a cleaner, more efficient, electrified and connected world. ATO Solid State Relay provides single phase and three phase solid state relays, including DC-AC and AC-AC, with load current from 10A to 120A. In addition, compact-size industrial solid state relays are provided with DC control AC, load current ranging 60 amp, 80 amp, to 350 amp. You can select a most suitable one to switch on/off your facilities or machines.