Siemens electromotoric actuator products information, including SSA31..SSA81..SSA61.. models, support 230V/24V voltage, 3-position control signal, 0-10V control signal, equal-percentage valve characteristic, rated force 100N, automatic valve stroke identification, direct mounting with coupling nut, with plug-in connection cable, length 1.5 m, optional cable types, cable length 1.5m, 2.5m and 4.5m, halogen-free cables, manual override and position indication, parallel connection of multiple actuators possible, auxiliary switch integrated in SSA31.1 and SSA81.1 actuators, optional tamper-proof fitting to prevent dismantling.