this 3210927N sensor is a standard replacement for models that reference this specific SPX Flow part number

ensuring steady and stable modulation

Enhances the overall safety and performance of AERCO hydronic systems

Use shielded cable for runs over 100 feet to maintain signal integrity

common failure points in aftermarket alternatives

Siemens Industrial Controls 3UG5616-1CR20 Relay 320788-704 this 3210927N sensor is aThe Siemens SIRIUS 3UG5616 1CR20 is a high performance phase monitoring relay designed for precise diagnostics in industrial and HVACR environments. This digitally adjustable voltage monitoring relay provides comprehensive oversight for 3 phase systems, tracking phase sequence, failure, asymmetry, and frequency monitoring across a wide operating range of 90 to 690 V AC. As a successor to the legacy 3UG4 series, it incorporates an intuitive LCD display