Trane FUS2280 Fuse R-407A the 186543LF is required for

the 186543LF is required for applications involving potable water to meet strict compliance standards

Contractor Grade: Durable construction with right hand threads and a 5-1/2 inch sensing probe for accurate temperature cycling

Utilizing boiler replacement parts that meet exact manufacturer specifications is essential for maintaining the UL listing and operational safety of pressurized vessels

What heater models is the Reznor 125345 compatible with

The motor features thermal protection to prevent winding burnout during high-ambient operations and utilizes a permanent split capacitor design for optimized electrical efficiency

Trane FUS2280 Fuse R-407A the 186543LF is required forThe Trane FUS2280 is a specialized 500V 20S time delay relay fuse designed for critical circuit protection within Trane industrial and commercial HVACR units. Engineered to handle transient inrush current during compressor and blower motor start ups, this 20 amp time delay fuse prevents nuisance tripping while maintaining a rapid response to sustained overcurrent conditions. As an OEM Trane replacement fuse, it ensures precise electrical coordination