Siemens Building Technology QAA2230.EWSN Sensor 318518-761 providing stable power distribution to

providing stable power distribution to compressor modules and EXV controllers

High Seat Force: The 180 lb-in torque rating ensures reliable shut-off against high differential pressures in chilled water and steam systems

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

The ZD24X20TZ is rated to operate reliably in systems with static pressures up to 1

Multi-Orientation Mounting: The housing supports versatile installation

Siemens Building Technology QAA2230.EWSN Sensor 318518-761 providing stable power distribution toThe 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