Mersen Control Systems Fuses NEOZED fuse 623510 - Mersen 01701.050000, The Mersen NEOZED fuse, model number 01701.050000, is rated at 50 A and 400 V. It features the D02 size, commonly used in residential and commercial circuit protection. This fuse is ideal for safeguarding electrical installations and equipment against overcurrent. Mersen 01701.050000 NEOZED Fuse D02 50A 400V Full Range Safety