Apparatus for protecting DC-powered equipment from power events occurring at the equipment power input

An apparatus for protecting DC-powered equipment, comprising:

• a plurality of energy absorbing components;
• and
• a casing containing the plurality of energy absorbing components, wherein electrical conductors extend out of the casing, and wherein the casing is strapped to nearby wiring.

An apparatus for protecting DC-powered equipment, comprising:

• a plurality of energy absorbing components where each energy absorbing component provides a substantially open circuit until exposed to a voltage that exceeds a threshold and then provide a closed circuit, the energy absorbing components receiving current via a locally unfused electrical pathway from a DC power supply output and in parallel with a DC power input of the DC-powered equipment, and wherein at least one of the energy absorbing components provides a pathway from the DC power supply output to the power supply return upon providing a closed circuit, and
• wherein the DC power supply comprises an alarmable fuse having a current threshold, and wherein upon the DC power supply providing a voltage that exceeds the threshold for a sufficient duration, at least one of the energy absorbing components provides a closed circuit from the DC power supply output to the power supply return such that current is output from the DC power supply that exceeds the current and time threshold of the alarmable fuse causing the alarmable fuse to operate and trigger an alarm.