M-fuse line-up belongs to the new DC Over-Current protection (O.C.P.) range developed by MERSEN to address specific needs in EV/HEV and Battery Electrical Storage System. M-fuse provides the ultimate protection of the battery modules offering reliable clearing of DC fault currents. It has been specifically engineered and tested to provide DC-applications best-in-class protection performance: Up to 100VDC, Current rating (In) = 50 to 200A, Interrupting Rating (IR) = 20kA, L/R ≤1.5ms, Minimum Breaking Capacity (MBC) < 1kA.