A method, device, and system for mitigating the effect of a power spike on a protective device. The device can receive an input signal and determine whether the input signal exceeds a threshold value. If so, the device simultaneously starts an initial time period and starts a latch time period, where the latch time period is greater than the initial time period. During the initial time period, the device replaces the input signal with a set value signal. After the initial time period ends and during the remainder of the latch time period, the device prevents the input signal from being replaced by the set value signal. If, during the remainder of the latch time period, the input signal exceeds the threshold value, a trip signal may be generated by a protective device.