This collar is essential for field technicians performing HVAC actuator retrofitting where precise shaft coupling is required for reliable building automation performance

the 1386 is an open-air-over (OAO) design best suited for indoor air handlers and furnace cabinets where it is protected from direct weather exposure

well-mounted water sensor

sized to manage significant refrigerant surges in high-tonnage heat pumps or AC units

Siemens Industrial Controls 3RU2126-4DB0 Overload Relay 318518-761 This collar is essential forThe Siemens 3RU2126 4DB0 is a high performance SIRIUS thermal overload relay engineered for precise protection of three phase motors. Designed for seamless integration, this Size S0 overload relay offers a versatile 20 25A current adjustment range, making it a critical component for safeguarding industrial pump motors, fans, and compressors. Utilizing a reliable bi metal switching mechanism, it provides Class 10 tripping capability, ensuring circuit