Siemens Building Technology QAH11.1 Sensor
The Siemens Building Technology QAH11.1 Sensor is a high-precision NTC 3k Ohm thermistor designed for integration into commercial HVAC plants and fan coil units. Engineered to function as a return air temperature sensor or a changeover sensor, this passive device delivers accurate resistance signals within a 32 Degree Fahrenheit to 104 Degree Fahrenheit (0°C to 40°C) operating range. Featuring a 8' (Ft) cable length terminated with 2-wire ferrules, the QAH11.1 surface mount sensor is optimized for strap-on cable mounting directly onto pipes (typically 12...16 mm diameter) or for acquiring exhaust air data. Its high electrical insulation properties make it specifically compatible with Siemens RDG, RDF, and RCC series room thermostats and controllers where sensor inputs are not galvanically separated from the AC 230 V mains. The PVC cable temperature sensor construction ensures a quick 1.5-minute time constant for responsive thermal monitoring in fan coil applications.
Key Benefits- Precise Changeover Control: Facilitates seamless switching between heating and cooling modes in fan coil units.
- High Dielectric Strength: Safe for use with controllers lacking galvanic isolation from mains power.
- Universal Strap-On Design: Flexible pipe mount or duct air installation without specialized tools.
- OEM Compatibility: Pre-calibrated for Siemens Building Technology controllers like the RDG series.
Is this sensor compatible with non-Siemens controllers?
As a standard 3k Ohm thermistor (NTC), it can work with various third-party building automation systems provided they support the NTC 3k resistance curve.
Can I use this for immersion sensing?
The QAH11.1 is a strap-on cable only style sensor; for immersion applications, it must be paired with an appropriate protection tube or well.
What mounting hardware is required?
The sensor is supplied as a cable with leads. For pipe mounting, the ARG86.3 changeover mounting kit is typically required to secure the sensor to the pipe surface.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $15.48
-65%$15.48
$5.42Siemens Building Technology QAH11.1 Sensor
The Siemens Building Technology QAH11.1 Sensor is a high-precision NTC 3k Ohm thermistor designed for integration into commercial HVAC plants and fan coil units. Engineered to function as a return air temperature sensor or a changeover sensor, this passive device delivers accurate resistance signals within a 32 Degree Fahrenheit to 104 Degree Fahrenheit (0°C to 40°C) operating range. Featuring a 8' (Ft) cable length terminated with 2-wire ferrules, the QAH11.1 surface mount sensor is optimized for strap-on cable mounting directly onto pipes (typically 12...16 mm diameter) or for acquiring exhaust air data. Its high electrical insulation properties make it specifically compatible with Siemens RDG, RDF, and RCC series room thermostats and controllers where sensor inputs are not galvanically separated from the AC 230 V mains. The PVC cable temperature sensor construction ensures a quick 1.5-minute time constant for responsive thermal monitoring in fan coil applications.
Key Benefits- Precise Changeover Control: Facilitates seamless switching between heating and cooling modes in fan coil units.
- High Dielectric Strength: Safe for use with controllers lacking galvanic isolation from mains power.
- Universal Strap-On Design: Flexible pipe mount or duct air installation without specialized tools.
- OEM Compatibility: Pre-calibrated for Siemens Building Technology controllers like the RDG series.
Is this sensor compatible with non-Siemens controllers?
As a standard 3k Ohm thermistor (NTC), it can work with various third-party building automation systems provided they support the NTC 3k resistance curve.
Can I use this for immersion sensing?
The QAH11.1 is a strap-on cable only style sensor; for immersion applications, it must be paired with an appropriate protection tube or well.
What mounting hardware is required?
The sensor is supplied as a cable with leads. For pipe mounting, the ARG86.3 changeover mounting kit is typically required to secure the sensor to the pipe surface.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Siemens Building Technology QAH11.1 Sensor is a high-precision NTC 3k Ohm thermistor designed for integration into commercial HVAC plants and fan coil units. Engineered to function as a return air temperature sensor or a changeover sensor, this passive device delivers accurate resistance signals within a 32 Degree Fahrenheit to 104 Degree Fahrenheit (0°C to 40°C) operating range. Featuring a 8' (Ft) cable length terminated with 2-wire ferrules, the QAH11.1 surface mount sensor is optimized for strap-on cable mounting directly onto pipes (typically 12...16 mm diameter) or for acquiring exhaust air data. Its high electrical insulation properties make it specifically compatible with Siemens RDG, RDF, and RCC series room thermostats and controllers where sensor inputs are not galvanically separated from the AC 230 V mains. The PVC cable temperature sensor construction ensures a quick 1.5-minute time constant for responsive thermal monitoring in fan coil applications.
Key Benefits- Precise Changeover Control: Facilitates seamless switching between heating and cooling modes in fan coil units.
- High Dielectric Strength: Safe for use with controllers lacking galvanic isolation from mains power.
- Universal Strap-On Design: Flexible pipe mount or duct air installation without specialized tools.
- OEM Compatibility: Pre-calibrated for Siemens Building Technology controllers like the RDG series.
Is this sensor compatible with non-Siemens controllers?
As a standard 3k Ohm thermistor (NTC), it can work with various third-party building automation systems provided they support the NTC 3k resistance curve.
Can I use this for immersion sensing?
The QAH11.1 is a strap-on cable only style sensor; for immersion applications, it must be paired with an appropriate protection tube or well.
What mounting hardware is required?
The sensor is supplied as a cable with leads. For pipe mounting, the ARG86.3 changeover mounting kit is typically required to secure the sensor to the pipe surface.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
