Siemens STA63 Electrothermal Actuator

Product Id : 157361


Siemens STA63 Electrothermal Actuator covers the widest range of equipment combinations and applications. The cable is a standard length included with actuators using connecting cables. Actuators without connecting cables can be used in combination with the appropriate cables, see Accessories / Connecting cables.

Applications: HVAC, AHU, BMS, Hydraulic Pumps, Radia Frequency Switches.

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Country : United States

Product Description

Siemens STA63 Electrothermal Actuator stem retracts and the radiator valve is opened by the spring. The
position of the stem is proportional to the DC 0…10 V positioning signal. This Electrothermal actuator stem when de-energize the radiator valve is close. The actuator deploys to the 50% stroke position if the positioning signal is lost when applying operating voltage DC 0…10 V actuators support various operation modes, see also under DIP Switch settings.
Features of  Siemens STA63 Electrothermal Actuator :

  • These Siemens Pneumatic Actuators Connect cable up to 15 m, halogen-free up to 10 m
  • This Siemens STA63 has Connecting cable with LED operation indicator
  • Connecting cable with DC 0…10 V module or auxiliary switch.


Additional Information

Weight 1 kg
Manufacturer Siemens
Model No STA63
Item Number S55174-A104
Positioning Signal DC 0…10 V
Positioning Time 270 s
Stroke 4.5 mm
Degree of Protection IP54
Mounting Any, 360°
Permissible temperature of medium in the connected valve 1 to 110 °C
Operating Temperature 5 to 50 °C
Operating Humidity < 85 % RH
Operating Voltage AC 24 V
Operating Voltage Frequency AC 24 V ± 20 % 50 / 60 Hz
Cable Length 2 m
Power Consumption 2.5 W
Colour White
Supply Scope 1 Unit of STA63 Electrothermal Actuator, Instruction Manual
Dimensions 44 X 65 X 74 mm
Weight 201 Grams

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