UNISON is pioneer in manufacturing Solid State Relay (SSR) and Heatsinks since 1994. Product range includes SSR up to 200 Amp (AC and DC load). “Hockey Puck” 45 mm and “Slim SSR” 23.6 mm configuration available. We manufacture following types of SSR: 1. Zero Cross Over DC to AC SSR & AC to AC SSR (Single Phase) 2. Analog PHASE ANGLE CONTROL SSR & PHASE ANGLE CONTROL BY POT 3. BURST FIRE Control SSR 4. SCR Power Controller (THYRISTOR Power Controller) 5. MODBUS RS-485 Based COMMUNICATION SSR with inbuilt TEMPERATURE CONTROLLER (HEAT+COOL & HEAT ONLY configuration) 6. 3 PHASE Zero Cross Over DC to AC & AC to AC SSR 7. 3 PHASE FORWARD - REVERSE Semiconductor MOTOR STATER with OVERLOAD / SINGLE PHASE PROTECTION SSR 8. PCB MOUNTED SSR (DC to AC & DC TO DC) 9. DC to DC SSR with SHORT CIRCUIT PROTECTION (Multiple channel card & 45 mm relay configuration) Major list of Customers / Distributors / OEM’s working with us for past 15+ years. State of the art fully automatic SMT production line from YAMAHA Japan to assemble our products. In-house R&D, Design, Production, Administration, H.R and Sales team. We research and design all mechanical molds, PCB parts and other auxiliaries in our company with help of 3D software’s to attain utmost design quality. World class equipment to test and simulate our products to stay at par to global standards while in alliance with our Hon. Prime Minister “Make in India” concept. UL approved products under file Number. E481640. We are ISO 9001:2015 & ISO 14001:2015 CERTIFIED ORGANISATION.