Product Description
. . . . . Siemens SSA61U SSA Normally Closed NSR Electronic Zone Valve Actuator, 0 to 10 Vdc - The SSA/SSP Electronic Valve Actuator requires a 24 Vac power supply and receives a 0 to 10 Vdc signal or a floating control signal to control a valve. This actuator is designed to work with Zone Control Valves with a 1/10- inch (2.5 mm) stroke and a threaded valve bonnet that fits the actuator.. Siemens. Siemens. SSA61U.