UL certified for residential and commercial power distribution, the Square D Homeline 100 Amp 6-Space 12-Circuit Outdoor fixed Main Lugs Load Center has six spaces. This load center's plated, aluminum bus bar has undergone testing to ensure that it works with Square D Homeline circuit breakers. The contractors, remodelers, builders, and homeowners who prioritize affordability would benefit from Homeline load centers. Square D Homeline breaker boxes are made to be easy to install and use less wiring.