Siemens Building Technology QAA2230.EWSN Sensor 322027-701 Supports both 120V and 240V

Supports both 120V and 240V single-phase electrical inputs

secure swap-out during service calls

Designed for 230V systems

Installation is straightforward for any qualified contractor

Always verify your lead end or shaft end orientation requirements against the OEM spec before installation

Siemens Building Technology QAA2230.EWSN Sensor 322027-701 Supports both 120V and 240VThe 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