Schneider Electric's Square D heavy duty safety switch is designed to be tough, reliable and provide exceptional performance in the most grueling conditions. They have been designed to have a significantly higher durability than a standard switch and have a durability three times greater than NEMA standard making it ideal for all your commercial and industrial needs. This solid neutral assembly is one of those accessories which can be used in either the PowerPacT M, 800A enclosure or the PowerPacT P, 1200A enclosure. This solid neutral assembly is insulated and groundable. It has four terminals in and four terminals out, with two additional grounding terminal. Each terminal accepts 3/0 AWG to 500kcmil. This accessory complies with UL and CSA standards. This accessory complies with UL and CSA standards