Siemens Building Technology QAA2230.EWSN Sensor 318518-761 making it a staple for

making it a staple for contractors requiring a 7-day programmable timer that can withstand rigorous field use

Extended 30-Foot Reach: The pre-terminated 30' cable simplifies routing through complex mechanical rooms and panel conduit

This OEM compressor protector utilizes a Klixon thermal overload mechanism to monitor motor current and surface temperature in real-time

structural degradation of the pilot burner housing or sensor bracket requires a full assembly replacement to ensure long-term system reliability and safety

Siemens Building Technology QAA2230.EWSN Sensor 318518-761 making it a staple forThe Siemens Building Technology QAA2230. EWSN is a professional grade room temperature sensor engineered for precise environmental monitoring in commercial and industrial HVAC applications. This 10k Ohm Type 2 thermistor offers high accuracy sensing within a range of 32F to 122F (0C to 50C), making it a staple for Building Automation Systems (BAS) requiring reliable NTC resistance signals. Designed as a "blank front" unit, the EWSN model features no