What is the reliability of overcurrent protection over time?
Amp-Trap 2000® fuses can be expected to provide reliable current-limiting performance for over 20 years if they are not physically damaged or continually utilized above their ampere rating. Since the current-limiting action of a fuse requires a fixed mass of copper or silver to melt, the fuse’s speed of response is not affected with the passage of time. Consequently, there’s no need for the periodic recalibration that might be required for an electromechanical device.
