Andover TCX-851-RC
Andover TCX-851-RC
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The Andover TCX-851 is a terminal controller from the Andover Controls (Schneider Electric) Series 850 Infinity building automation product line. It is used in building equipment control applications such as HVAC zone and boiler control, providing analog inputs for monitoring field sensors and outputs for local equipment control.
Key Features
- Terminal control unit for Series 850 Infinity building automation systems
- Commonly used as a drop-in replacement for legacy Series 850 terminal controllers
- Used in HVAC, boiler, and building equipment control applications
Technical Specifications
- Power: 24 VAC, 50/60 Hz, 20A rating
- Analog inputs: 4, range 0-5.115 V, resolution 0.005 V, accuracy +/-0.015 V
- Overvoltage protection: 24 VAC RMS / 24 VDC continuous, per channel
- Product line: Series 850 Infinity (i2)
Certifications
- This is a discontinued legacy model; the manufacturer does not publish additional agency certification listings for it

