The Homeline load center offer features Homeline circuit breakers, ground fault circuit breakers and arc fault interrupters. Homeline load centers enable the use of a full complement of accessories. Systems are single phase and are rated for indoor use or are rain proof. Homeline load centers are designed for residential and industrial use to protect electrical systems, equipment and people. This handle blocking device attaches to two pole Homeline circuit breakers for holding the handle in the OFF position.