The Encapsulated Chassis is designed for S800 breakers in the IA range IPD. It has 48P and a 400 A capacity with top feed and a 27 mm pitch. The chassis has a withstand rating of Icw 25 kA/0.1s and 10 kA/1s, as well as an Icc rating of 30 kA. The incoming terminals are made of 3 mm thick copper, while the base is made of 1.2 mm thick galvanized iron. The chassis is coated with duravin SCI-TV for added durability.