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

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Subtotal (1 unit)*

£33.03

(exc. VAT)

£39.64

(inc. VAT)

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  • Shipping from 10 November 2025
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Units
Per unit
1 +£33.03

*price indicative

RS Stock No.:
639-322
Mfr. Part No.:
STP121.40L10 / S55174-A221
Brand:
Siemens
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Brand

Siemens

Number of Ports Supported

2

Maximum Closing Time

210s

Supply Voltage

24 V

Power Rating

1W

Actuator Type

Electric

RoHS Status: Exempt

COO (Country of Origin):
DE
The Siemens Thermal actuator is built for reliable functionality in heating, ventilation, and cooling systems powered by 24V AC/DC. It operates in a NO configuration, ensuring responsive control in temperature-sensitive environments, its 4.0 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

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