4.8kV Ferrule / Medium Voltage Fuses
The 4.8kV Ferrule / Medium Voltage Fuses is part of the Mersen (formerly Ferraz Shawmut) medium voltage fuses line, distributed by Gross Automation.

R-rated Motor Starter Fuses - Amp-trap R-rated fuses are current-limiting, high interrupting rating fuses intended for the short-circuit protection of medium voltage motors and motor controllers. R-rated fuses are back up fuses that have a minimum interrupting rating, and must be coordinated with overload relays in combination motor starters. The motor starter manufacturer generally specifies the R-rated fuse size. Amp-trap R-rated fuses are rated 2R to 36R.
Specifications
| Specification | Value |
|---|---|
| Ratings | AC: 2R to 36R - 5500V, 63kA I.R. Sym.; UL Recognized Component A480R @ 5080V, 50kA, Sym.; Short circuit protection of medium voltage motors and motor controllers |
| Features | Ferrule mounting for standard clips and interchangeability with other brands of fuses |
Features
- Ferrule mounting for standard clips and interchangeability with other brands of fuses
Ratings
- AC: 2R to 36R - 5500V, 63kA I.R. Sym.
- UL Recognized Component A480R @ 5080V, 50kA, Sym.
- Short circuit protection of medium voltage motors and motor controllers