The Siemens GSD161.9A is an electromotive rotary actuator designed for HVAC systems, providing on-off (2-wire SPDT) control. It is used with 2-port and 3-port control ball valves in heating, ventilation, and air conditioning plants. With a nominal torque of 2 Nm, this actuator is suitable for valves with internally and externally threaded connections from DN15 to DN25. The brushless, robust DC motor ensures reliable operation regardless of load, making it ideal for 2-position controllers.

Key Features:

• Nominal torque: 2 Nm
• Compatible with DN15 to DN25 ball valves
• 2-wire SPDT on-off control
• Prewired with a 0.9 m connecting cable
• Available for AC 24 V and AC 230 V

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