The ABB MS165-42 is a brand new and original switch-type fuse suitable for both interior and exterior use. It features tripping characteristics of Type A, with a current type of AC and a voltage of 201-250V. This fuse has a maximum amperage of 400A and is made of ABS/plastic, ceramic, and plastic materials. It offers features like changeover contact, mechanical interlock, residual current monitor, and thermal overload protection. With DIN rail mounting style and screw terminal electrical connection, this fuse is ideal for industrial and electronics applications. Its smart home compatibility includes Universal, Ring, and ADT Pulse.