Siemens QAF81.6M / BPZ:QAF81.6M Thermostat, QAF, 24V

View all HVAC Sensors

Subtotal (1 unit)*

£581.84

(exc. VAT)

£698.21

(inc. VAT)

Add to Basket
Select or type quantity
Stocked by manufacturer
  • Ready to ship from 13 May 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£581.84

*price indicative

RS Stock No.:
632-334
Mfr. Part No.:
QAF81.6M / BPZ:QAF81.6M
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Product Type

Thermostat

Series

QAF

Voltage

24V

Height

37mm

Depth

113mm

Width

106mm

COO (Country of Origin):
CZ
The Siemens Frost unit QAF81 designed for air side monitoring of the temperature of LTHW heating coils in ventilation and air conditioning systems is used to prevent frost damage. It has a small switching differential and good repeatability. The reset occurs automatically.

Robust aluminium die cast housing

Small switching differential

Good repeatability

Set point adjustment

Protection standard IP54

Related links