structure for mounting power capacitors including indicator light structure for indicating the condition of one or more power capacitors and including a catch basin for retaining liquid from power capacitors mounted therein . in one modification , the indicator light structure prevents removal of the cover of the capacitor mounting structure without breaking the circuit through the capacitors . in another modification the indicator light structure is mounted on a hinged portion of the capacitor mounting structure whereby the capacitor mounting structure may be open for ease of inspection or repair .