T213710J 15A Fibreglass Cartridge Fuse, 10 x 38mm, Speed T. Mersen ATQR fuses are time delay midget fuses. The ATQR is ideally suited to inductive loads with high inrush currents. With a rejection style design, the ATQR prevents replacement errors and has safety features such as high grade silica filler to ensure fast arc quenching.