Homeline, main lugs only. Can be used when spaces for more circuits are needed, as a secondary or add on load center connected to the main disconnect load center. Single-phase, 3-wire. Cover included, ground bar kits must be ordered separately. Accepts only Homeline circuit breakers. Ideal for residential and commercial power distribution. Built with plated, aluminum bus bar that is tested and listed only for Homeline circuit breakers. Engineered for fast installation and wire savings. For indoor use.