QAA22SS.EWNN Siemens Temperature Sensor
$103.03
Room Temperature Sensor, 0-10Vdc Output Signal, or 4-20mA Output Signal, (selectable) Output Signal, 32 Degree – 122 Degree Fahrenheit (0 Degree – 50 Degree Celsius) Temperature, Connection Type: Terminal Block, No Display,
Siemens QAA22SS.EWNN Room Temperature Sensor – Selectable Analog Output, White Blank Front
Overview
The Siemens QAA22SS.EWNN is a wall-mounted, sensing-only room temperature sensor from the QAA2200 series. It provides selectable analog outputs (0-10 V, 4-20 mA, etc.), blank front (no display or setpoint adjustment) for tamper-proof mounting, and is designed with a modern profile and ventilation slots for accurate thermal response. Ideal for building automation systems, classrooms, offices, or any space requiring reliable, stable temperature feedback without local user interface.
Specifications
| Specification | Details |
|---|---|
| Brand / Model | Siemens QAA22SS.EWNN |
| Series | QAA2200 Series |
| Sensor Type | Room temperature sensor, sensing-only |
| Output Signal Options | Selectable analog: 0-10 V / 0-5 V / 4-20 mA |
| Power Supply / Voltage | 18-36 V DC or 24 VAC ±20% |
| Temperature Range (Operating) | 32 to 122 °F (0 to 50 °C) |
| Accuracy | ± 0.9 °F (± 0.5 °C) typical for analog outputs |
| Enclosure / Housing | Wall-mount, white plastic housing, blank front (no HMI or display) |
| Dimensions | ~ 4.5 in × 2.75 in × 1.18 in (≈ 115 mm × 70 mm × 30 mm) |
| Mounting | Mounts on standard 2” × 4” electrical box or directly on drywall |
| Connection Type | Terminal block / wiring via RJ-11 (or per Siemens spec) |
| Ventilation | Strategically placed vents to allow airflow for faster and accurate response |
| Certifications & Standards | UL 916, CE, and related building automation sensor standards |
Features & Benefits
Blank front prevents unauthorized adjustments; good for public or supervised spaces
Selectable analog output allows compatibility with various control systems
Accurate temperature sensing helps maintain comfort and energy efficiency
White, neutral design with ventilated housing blends into interior environments
Reliable and durable, long service life with minimal maintenance
Applications
Building automation and HVAC temperature feedback loops
Offices, classrooms, corridors, or other indoor spaces where users should not adjust settings
Interfaces to controllers, RTUs, or BAS systems that accept analog temperature signals
Installation & Maintenance Notes
Mount in a location away from direct sunlight, drafts, or heat sources to avoid false readings
Use proper wire gauge and keep wiring short when possible to minimize signal distortion/noise
Secure wiring connections and ensure sealing of wall penetrations to prevent air leakage
Clean vents occasionally if dust accumulates; check sensor element if occupants report inaccuracy
Warranty & Quality Assurance
Manufactured by Siemens under their strict quality standards
Meets safety, thermal, and electrical specifications typical of QAA2200 series sensors
Related Products
Other QAA22SS / QAA22SS series sensors with HMI / display (e.g. “EWSN”, “FWSN” versions)
Sensors with different output types (resistive RTDs, thermistors) for applications not using analog outputs
Accessories like backplates, insulating gaskets, cover plates
| Weight | 1 lbs |
|---|---|
| Dimensions | 6 × 5 × 4 in |
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