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S&C BORIC ACID FUSES - SMU-20 VERY SLOW
Description
SMD-20 Power Fuses, rated 200 amperes continuous, utilize SMU-20 Fuse Units.
These fuse units are offered in a variety of ampere ratings, in five different speeds — S&C “K,” Standard, Slow, Very Slow, and “DR.” They provide interrupting ratings of up to 14,000 amperes symmetrical at 60 Hz.
The SMU-20 Fuse Unit consists of a fusible element, an arcing rod, and a solid-material arc extinguishing medium contained within a filament wound glass-epoxy tube.
The SMU-20 Fuse Unit is designed for universal use. It’s also used in underground applications in S&C PMH and PME Pad-Mounted Gear and in Custom Metal-Enclosed Switchgear.
