Ferraz - DC Rated

The interruption of true DC currents (voltage does not pass through zero) has long been known to be more difficult than that of AC currents. In the presence of large time constants and relatively small prospective currents, safe interruption of these currents can only be achieved by fuses specially designed for these types of applications. To address these DC circuits, Ferraz has been developing true DC fuses for over 25 years and is considered the leader in DC protection. One such leading DC fuse design is that of the 13/16" x 5" (20mm x 127mm) cartridge fuse capable of handling voltages up to 1500VDC. These full range DC fuses have been designed to interrupt very high available fault currents and are suitable for protection of traction auxiliary circuits, filters, measuring circuits, discharging capacitor circuits, etc. In addition to the cartridge fuses, Ferraz offers a complete line of 750VDC square fuses which are quite common in the transit industry where high DC fault currents at 600VDC or higher or not unusual.

Features
48VDC TO 6000VDC
.8A to 4000A

Current limiting
High Interruption Capacity
Exceptional time constant vs. voltage rating characteristics
Round and square designs