Bussmann Fuse FRS-R-20 Time Delay Fuse 20A 600 VAC

The Bussmann Fuse FRS-R-20 Time Delay Fuse 20A 600 VAC is an overcurrent protection used in electrical safety in HVAC systems. Its major use is to break excessive current flow but open up momentarily to startup surges. The circuit uses a heating element that can survive short bursts and clear sustained overloads. It requires one to insert the cylindrical fuse into the corresponding holder slot that is for series fuses. This section is used in the protection of controlled circuits and stability in the operation under different electrical loads.