The Cooper Bussmann FRS-R-20 is a FuseTron dual-element time-delay fuse designed to protect electrical circuits from overcurrent while tolerating brief surge conditions. Identified by the model FRS-R-20, this device belongs to the FuseTron family and employs two elements to provide reliable protection against transient faults. Its time-delay characteristics help minimize nuisance trips on circuits that experience short startup or switching surges, making it suitable for a range of control and power applications where steady current protection is needed.
