About Unison
Solid state relays, and nothing else, since 1992.
Three decades of listening to machine builders, and building the relay they asked for.
01
Who we are
Unison is a manufacturer and global supplier of solid state relays for many industries. The company was incorporated in 1992 with a vision to be one of the prominent manufacturers of SSRs. By absorbing the know-how of different industries and treating our customers as “guru”, we turned their inputs into products, and expanded into a full range of control relays.
02
What we commit
Continuous improvement, and the best possible products and service at every level of the organisation. We follow the best business practices with the highest standards of ethics. Every employee understands the value of delivering their best to mould a quality product for the customer.
03
Where we are going
Product development is a continuous process. Our aim is to help customers reduce their cost per piece and energy consumption, and so increase their productivity, reliability and competitiveness.
04
What we believe
Unison owes its position in the SSR industry to its focus on “Make in India”. Product design, development, manufacturing, assembly and testing are all carried out methodically at our own facility in Ahmedabad.
Manufacturing
The plant
- Two fully automatic high-speed SMT production lines
- Automatic conveyor lines for product assembly
- Dedicated R&D area for design and simulation
- QC and testing laboratory
- Semi-automatic packaging machines
- 40,000 square feet of floor area
Technical capabilities
We test against the loads you actually run.
Design
- 3D PCB design
- 3D plastic mould design
- Thermal simulation software
- 3D printer for prototypes
Load testing
- Automatic test benches for SSRs
- AC resistive load benches up to 200 A
- DC load benches up to 125 A
- Inductive, capacitive and transformer load simulation
- Capacitive loads up to 65 kVAr
- Multiple 3-phase inductive motor loads
- DC motors, solenoid and hydraulic valves, actuators
- Humidity chamber, −20 to 100 °C
Instruments & process
- Power and harmonic analysers
- Digital and power oscilloscopes
- Spectrum analysers
- High-frequency pure sine wave generators
- High AC/DC voltage insulation testers
- Barrel, screw and heater simulation rig for temperature-control SSRs
- Fully automatic process for back-to-back SCR modules
People
Talk to the team
Rajul Patel
Jehan Patel
Shekhar Patil
Nimesh Bhavsar