The Siemens 3VA 400 amp 208v Main Breaker Panel P1X42MC400AT is a reliable and high-quality electrical panel designed for indoor use. With a maximum amperage of 400 A, this 3-phase panel is suitable for various industrial and commercial applications. Siemens is a well-known brand in the electrical equipment and supplies industry, known for producing durable and efficient electrical panels and distribution boards. This main breaker panel is an essential component for ensuring safe and reliable electrical power distribution in a wide range of settings.