Eaton Memshield 3 Moulded case Circuit Breaker Incomer Kit is suitable for type-B TPN distribution boards. It has evolved through an intimate knowledge and feedback from electrical contractors, consulting engineers and end users to provide solutions to a wide range of electrical distribution applications in commercial buildings. The Memshield 3 delivers safe, reliable and high performance protection of electrical power distribution systems in accordance with BS EN 60439-3 standards. It can be used with the 250A board and provide a greater choice of solutions at 250A. This incoming device is available with the 125A SPSN switch disconnector being the most popular. A direct connection terminal arrangement is also available for applications not requiring local isolation.