Capacitance check and voltage monitoring circuit for use with a circuit protection device

A circuit protection device (100) includes a plasma gun, at least one capacitor (210, 212) communicatively coupled to the plasma gun, and a monitoring circuit (306) communicatively coupled to the at least one capacitor (210, 212). The capacitor (210, 212) is configured to store electrical energy and to provide the electrical energy to the plasma gun. The monitoring circuit (306) is configured to measure a charge property of the at least one capacitor (210, 212), determine a charge status of the at least one capacitor (210, 212) based on the measured charge property, and output at least one signal indicative of the charge status.