For radiator valves, small valves, zone and combi valves PICV

• ST..121.., STA126.., ST..162..: Operating voltage AC/DC 24 V
• ST..161..: Operating voltage AC 24 V
• ST..321.. ST..326..: Operating voltage AC 230 V
• Positioning force 125 N, 6.5 mm (ST..65..)
• Positioning force 100 N, 4 mm (ST..40..)
• Connection cables 1m, 2 m, 5 m, 10 m / halogen free: 1 m, 5 m, 10 m
• Direct assembly for valve threaded connection M30×1.5 mm
• IP54 housing protective class
• Visible position indicator 360°
• Thermal expansion element
• First open function for low force valve mounting for NC actuators
• Robust construction, quiet operation, no maintenance required
• Degree of pollution 2
• ST..121.., ST..161.., ST..162.., AC/DC 24 V protection class III, overvoltage category I (1500 V)
• ST..321.., ST..326.. AC 230 V, protection class II, overvoltage category II (2500 V)