Inventa Electro Systems [Nasik] Pvt. Ltd manufactures Proportional Output Solid State Relay. Inventa Electro Systems [Nasik] Pvt. Ltd offers a wide range of electronic components, modules and systems for various industrial applications. The Proportional Output Solid State Relay is mainly used to adjust output power of heaters and allows controlling through PLC. The Proportional Output Solid State Relay provides current ratings up to 40 A and has no voltage rating.