Product information "Siemens SSA Series Electro-Motoric Actuator"
SSA Series – Electro-motoric actuator, 100 N, 2.5/5 mm, 24 V AC/DC, 230V AC, 1.5 m cable, Control signal DC 0-10 V or 3 position or On Off. For direct mounting on radiator valves, VDN Series, VEN Series, VUN Series, PICVs VPP46, VPI46 and Mini Combi Valves, VPD Series, VPE Series, small valves. Including Manual adjuster
Attached to the valve: Coupling nut M30x1.5