The Square D Homeline SC3042M200PS 200A All In One 30-Space 42-Circuit Ringed Socket No Bypass Surface Mount Load Center for Plug-on Neutral breakers is UL listed for residential and commercial power distribution. This combination service entrance device (CSED) is built with a plated, aluminum bus bar that is tested and listed only for Homeline circuit breakers. Homeline CSEDs are designed for value-minded contractors, remodelers, builders and homeowners. Homeline CSEDs are engineered for fast installation and wire savings.