Siemens Hygrostat, Wall 250V ac
- RS Stock No.:
- 639-114
- Mfr. Part No.:
- QFM81.21 / BPZ:QFM81.21
- Brand:
- Siemens
Subtotal (1 unit)*
£771.03
(exc. VAT)
£925.24
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 01 June 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £771.03 |
*price indicative
- RS Stock No.:
- 639-114
- Mfr. Part No.:
- QFM81.21 / BPZ:QFM81.21
- 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 | Hygrostat | |
| Mount Type | Wall | |
| Minimum Humidity Setting | 15%RH | |
| IP Rating | IP55 | |
| Maximum Supply Voltage | 250V ac | |
| Minimum Operating Temperature | 0°C | |
| Maximum Operating Temperature | 70°C | |
| Standards/Approvals | CE, EN 60730-1, RoHS | |
| Width | 73mm | |
| Height | 246mm | |
| Series | QFM81 | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Product Type Hygrostat | ||
Mount Type Wall | ||
Minimum Humidity Setting 15%RH | ||
IP Rating IP55 | ||
Maximum Supply Voltage 250V ac | ||
Minimum Operating Temperature 0°C | ||
Maximum Operating Temperature 70°C | ||
Standards/Approvals CE, EN 60730-1, RoHS | ||
Width 73mm | ||
Height 246mm | ||
Series QFM81 | ||
- COO (Country of Origin):
- CH
The Siemens room hygrostat designed to maintain precise humidity control within indoor spaces, featuring a set point adjustment range of 15 to 95% relative humidity. The set point adjuster is conveniently located inside the device, ensuring secure and tamper-proof settings. This hygrostat is ideal for use in HVAC systems to regulate humidity levels in residential, commercial, and industrial environments. Its reliable operation helps maintain optimal air quality by preventing excessive moisture or dryness in indoor air.
Durable and robust design for long term performance
IP55 protection
RoHS compliant
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