Siemens Electric 2 Port Valve Actuator -, 24 V Supply Voltage
- RS Stock No.:
- 639-191
- Mfr. Part No.:
- STA121.65L20 / S55174-A205
- Brand:
- Siemens
Subtotal (1 unit)*
£42.86
(exc. VAT)
£51.43
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 06 May 2026
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
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Product Type | Valve Actuator | |
| Number of Ports Supported | 2 | |
| Maximum Closing Time | 270s | |
| Supply Voltage | 24 V | |
| Actuator Type | Electric | |
| Standards/Approvals | RoHS, Protection class III, Overvoltage Category I (1500 V) | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Product Type Valve Actuator | ||
Number of Ports Supported 2 | ||
Maximum Closing Time 270s | ||
Supply Voltage 24 V | ||
Actuator Type Electric | ||
Standards/Approvals RoHS, Protection class III, Overvoltage Category I (1500 V) | ||
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