Finder Solid State Relays SSR 610306 - Finder 77B190248650, The Finder SSR 77B190248650 is a solid state relay capable of switching voltages up to 660 V AC with a current rating of 40 A. Its zero crossing feature ensures minimal electrical noise and efficient operation. This semiconductor switch is typically used in industrial automation and motor control applications. Finder 77B190248650 SSR 40 A max 660 V AC zero crossing 1pc