Finder modular solid state relay 30a spst no 77 series finder 770100248050 the finder 770100248050 is a 5a solid state modular relay from the 77 series this relay has a silent high switching speed that is both spark and bounce free the module is 225mm in width and 35mm din rail mountable and rated at 12 to 24v dc 5aapplications include lamp inrush current reduction cfl compact fluorescent energy saving lamps and similar heater control solenoid contactor driver finder 77