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

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

Complete Internal Kit: Includes the stem

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

Broad Compatibility: Drop-in OEM replacement for various A

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

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