Siemens Hygrostat 250V ac
- RS Stock No.:
- 639-113
- Mfr. Part No.:
- QFM81.2 / BPZ:QFM81.2
- Brand:
- Siemens
Subtotal (1 unit)*
£658.83
(exc. VAT)
£790.60
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 19 June 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £658.83 |
*price indicative
- RS Stock No.:
- 639-113
- Mfr. Part No.:
- QFM81.2 / BPZ:QFM81.2
- 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 | |
| Maximum Humidity Setting | 15%RH | |
| Minimum Humidity Setting | 15%RH | |
| Maximum Supply Voltage | 250V ac | |
| IP Rating | IP30 | |
| Minimum Operating Temperature | 0°C | |
| Maximum Operating Temperature | 70°C | |
| Width | 73mm | |
| Height | 140mm | |
| Standards/Approvals | RoHS, EN 60730-1, CE | |
| Depth | 46mm | |
| Series | QFM81 | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Product Type Hygrostat | ||
Maximum Humidity Setting 15%RH | ||
Minimum Humidity Setting 15%RH | ||
Maximum Supply Voltage 250V ac | ||
IP Rating IP30 | ||
Minimum Operating Temperature 0°C | ||
Maximum Operating Temperature 70°C | ||
Width 73mm | ||
Height 140mm | ||
Standards/Approvals RoHS, EN 60730-1, CE | ||
Depth 46mm | ||
Series QFM81 | ||
The Siemens duct hygrostat designed to regulate relative humidity in HVAC systems with a set point adjustment range of 15 to 95% relative humidity. It is ideal for controlling air moisture levels in ducts to ensure optimal environmental conditions in commercial, industrial, and residential buildings. The hygrostats reliable performance ensures efficient climate control, preventing both excessive humidity and dry conditions. Its robust construction guarantees consistent, long-term operation, making it a reliable solution for maintaining air quality.
Durable and robust design for long term performance
IP30 protection
RoHS compliant
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