Siemens P1E?42 400 A Panelboard Interior ? 42 Circuit, 277/480 V Siemens P1E?42 400 A Panelboard Interior ? 42 Circuit, 277/480 V New The Siemens P1E?42MC400CT is a high-capacity, heavy-duty panelboard interior designed for demanding commercial and industrial electrical distribution systems. Built to handle up to 400 amps at 277/480 volts AC, this Type P1 panelboard features a robust tin-plated copper bus system for superior conductivity and corrosion resistance. It supports up to 42 circuits, providing flexible load distribution in three-phase, four-wire systems?ideal for lighting, HVAC, or motor control in large facilities. The compact interior is only 20 inches wide and 5.75 inches deep, yet it is engineered for maximum performance and space efficiency. The unit is convertible between main lug and main breaker configurations, making it highly adaptable to different installation requirements. It also allows for feed-through lugs or sub-feed breakers up to 400 A without increasing the box height, supporting future expansion or downstream panels. The Siemens P1E?42 interior is UL-listed, factory-built to Siemens? strict quality standards, and designed for straightforward integration with Siemens branch breakers, providing reliable overcurrent protection and system coordination. This panelboard is a core component in any advanced power distribution system where safety, scalability, and electrical performance are critical. Listed by: Maksim (Sales Team) "Enjoy the little things, for one day you may look back and realize they were the big things.?? Robert Brault (A positive moment brought to you by Help Resale) About Us Welcome to Help Resale, your go-to consignment shop where value meets quality. At Help Resale, we're dedicated to providing you with an exceptional shopping experience, whether you're looking to find the best deals or consign your items. Need to buy a product, but don't see it in our store? Please feel free to reach out to us and we will help you find it! Help Resale 7200 Fair Oaks Blvd Suite 120 Carmichael CA 95608 Business Hours: Monday-Friday: 9:00 am to 5:00 pm (PST) All product and company names are trademarks TM or registered trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. (description exceeds maximum possible length)