Neptronic AC2-B Auxiliary Switch 320734-701 When diagnosing a stuck reversing

When diagnosing a stuck reversing valve or a failed solenoid

tool-free mounting and removal

Terminals are clearly marked: "C" for Common

utilizing this OEM Trane MOT16143 ensures compatible mounting and electrical termination

Direct compatibility with 2293-061 and 2298-063 units for drop-in replacement

Neptronic AC2-B Auxiliary Switch 320734-701 When diagnosing a stuck reversingThe Neptronic AC2 B is a high performance auxiliary switch designed for seamless integration with Neptronic BT, BTM, and BTX series actuators. Built to handle double pole, double throw (DPDT) configurations, this unit provides precise remote status feedback and control for HVAC dampers and valve actuators. As the engineered replacement for the BT180 and compatible with BT160 footprints, it secures reliable end switch signaling within building