Siemens Electric 2 port Valve Actuator -, 24 V Supply Voltage

View all Valve Actuators

Subtotal (1 unit)*

£42.86

(exc. VAT)

£51.43

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • 999,999,999 unit(s) shipping from 10 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£42.86

*price indicative

RS Stock No.:
639-191
Mfr. Part No.:
STA121.65L20 / S55174-A205
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Number of Ports Supported

2

Maximum Closing Time

270s

Supply Voltage

24 V

Actuator Type

Electric

RoHS Status: Exempt

COO (Country of Origin):
PL
The Siemens Thermal actuator is built for reliable functionality in heating, ventilation, and cooling systems powered by 24V AC/DC. It operates in a NC configuration, ensuring responsive control in temperature-sensitive environments, its 6.5 mm stroke ensures precise valve actuation. With compact construction, it's well-suited for installations with limited space. Its durable design supports consistent performance across varied system applications.

IP54 housing protective class
Robust construction and quiet operation
RoHS compliant
CE and UKCA compliant

Related links