High-interrupting-capacity low-voltage power fuses

CARTRIDGE FUSES are used principally on a-c circuits, but they do not have interrupting ratings other than may be implied by their having met the 10,000-ampere d-c short-circuit test which forms part of the “Standard for Fuses.”¹ The growth and interconnection of many industrial and shipboard circuits, in which fault currents may be considerably greater than 10,000 amperes, has created a demand for fuses with proved adequate interrupting capacity.