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 400–1200 A main lugs only and 100–1200 A main circuit breakers. This HCM I-Line panelboard enclosure has a NEMA 3R/12 degree of protection. This enclosure has current ratings of 400A, 800A & 225A. Dimensions for this enclosure are 1219 mm (H), 813 mm (W),210 mm (D). This product comes with an 18 month warranty.