Abstract: An electrical panel locking apparatus includes first and second elongated angle iron bars having panel gripping hooks on one end of each elongated bar. One of the elongated bars has a flanged end portion with an angled slot therethrough for sliding the other elongated bar so that one telescopes inside the other and each angle iron elongated bar has a plurality of openings therein so that openings in one bar can be aligned with the openings in another bar for inserting the shackle of a padlock to lock the bars together. Thus, the hooks on each bar connect to either side of the front panel of an electric box and each has an off-set angle to allow the locking bars to fit over the panel door. The elongated bars can be telescoped to clip around the edges of any size panel and over the panel door and locked in position.