Siemens Building Technology QAA2280.EWSC Sensor

The Siemens Building Technology QAA2280.EWSC is a high-precision, 6-wire analog resistive room temperature sensor engineered exclusively for integration with Siemens Terminal Equipment Controllers (TEC). This robust wall-mount unit features a blank front design, providing a tamper-proof solution for high-traffic commercial environments where unauthorized setpoint adjustments must be prevented. Utilizing a reliable RJ-11 connection type, the sensor ensures error-free, "plug-and-play" wiring directly to the P1 TEC port, streamlining field installation for HVAC technicians and controls contractors.

Operating within a standard sensing range of 55 to 95 degrees Fahrenheit (13 to 35 degrees Celsius), the QAA2280.EWSC delivers superior stability and measurement accuracy for critical zone control. Its low-profile housing includes a strategically placed tool port at the base, allowing technicians to connect local commissioning tools or the Siemens Passkey without removing the cover. This Siemens building automation component is a direct fit for commercial HVAC control systems requiring a durable, display-free sensing element that maintains aesthetic consistency and operational integrity in professional settings.

Key Benefits:

• Tamper-Proof Design: The blank front prevents unauthorized tenant interference, ensuring consistent building temperature management.
• Native TEC Compatibility: Specifically designed for Siemens TEC controllers with an RJ-11 interface for rapid deployment.
• Integrated Tool Port: Allows for seamless HVAC commissioning and diagnostic access via the bottom-mounted service port.
• High Precision: Optimized resistive temperature sensor element provides accurate feedback for efficient air terminal unit operation.
• Professional Aesthetics: The sleek, white housing blends into modern office and classroom environments while meeting Building Automation (BAS) requirements.

Common Questions:

• Is the QAA2280.EWSC compatible with non-Siemens controllers? No, this specific model is designed exclusively for use with Siemens Terminal Equipment Controllers (TEC) via the RJ-11 port.
• Does this sensor provide a visual temperature display? No, it features a blank front for professional sensing applications where a local interface is not required or desired.
• What mounting hardware is required? The unit includes standard hardware for mounting to a 2x4 electrical box or directly to drywall.

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.