Thermal Valve Actuator - Modulating Control

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Subtotal (1 unit)*

£98.21

(exc. VAT)

£117.85

(inc. VAT)

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  • 999,999,999 unit(s) shipping from 17 November 2025
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1 +£98.21

*price indicative

RS Stock No.:
658-464
Mfr. Part No.:
SSA911.02TH / S55181-A102
Brand:
Siemens
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Brand

Siemens

Actuator Type

Thermal

Function

Modulating Control

RoHS Status: Exempt

COO (Country of Origin):
DE
The Siemens Wireless Radiator Actuator Thread is an RF-controlled actuator that communicates via the KNX IoT over Thread protocol (2.4 GHz, bidirectional). It connects seamlessly with the KNX IoT BACnet IP Gateway and supports Plug and Play Automation. The actuator is battery-operated, using 2 x 1.5 V AA batteries, and features a valve thread connection of M30x1.5 mm. It is designed to work with radiator valves from various manufacturers in HVAC applications, controlling water flow and room temperature.

Nominal stroke 5 mm
Valve positioning force 90 N
Adapts automatically to valve
Integrated temperature sensor and PI controller
Integrated temperature setting on the wireless radiator valve actuator or over the network
Touch element operation

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