Square D-brand I-Line circuit breaker power distribution panelboards are for use on AC or DC systems. The panels, labeled cULus (compliance to UL and CSA standards certified by UL) are also Underwriters Laboratories (UL) Listed under File E33139. Service entrance panelboards meeting the requirements of CSA are available in Canada factory-assembled only. I-Line circuit breaker panelboards are available as 4001200A main lugs only and 1001200A main circuit breakers. This I-Line Panelboard is 4.5 in (H), blank plate, has a quantity of 5 ea per box. Homeline load center provides a 22 kA breaking capacity. This system provides 16 spaces in a NEMA 1 indoor enclosure. The surface cover is to be ordered separately. The electrical connections are box lugs. The box lugs will accept a wire range 6 AWG to 2/0 AWG aluminum or copper wire. This Homeline load center has a height of 26.04 inches, a width of 14.25 inches, and depth of 3.75 inches. Homeline load centers are CSA Listed.