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
Catalog Numbers
Catalog Numbering System, Ratings, Dimensions, 4.8kV: A480R-1
| Catalog Number | Size | Continuous Ampere Rating at 40°C | Dim. L | Minimum Interrupting Rating RMS Amperes | 1 Phase Interrupting Rating, UL Component Recognition: RMS Asym | UL Component Recognition: RMS Sym | Maximum Tested: RMS Asym | Maximum Tested: RMS Sym | Notes |
|---|---|---|---|---|---|---|---|---|---|
| A480R2R-1+ | 2R | 70 | 15-7/8 (403mm) | 190 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R3R-1+ | 3R | 100 | 15-7/8 (403mm) | 225 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R4R-1+ | 4R | 130 | 15-7/8 (403mm) | 330 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R5R-1+ | 5R | 150 | 15-7/8 (403mm) | 400 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R6R-1+ | 6R | 170 | 15-7/8 (403mm) | 500 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R9R-1+ | 9R | 200 | 15-7/8 (403mm) | 740 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R12R-1+ | 12R | 230 | 15-7/8 (403mm) | 955 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R18R-1+ | 18R | 390 | 15-7/8 (403mm) | 1440 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R24R-1+ | 24R | 450 | 15-7/8 (403mm) | 1910 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R36R-1+ | 36R | 650 | 15-7/8 (403mm) | 2810 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | Not recommended for use in fuse clips which grasp only one barrel. |
Catalog Numbering System, Ratings, Dimensions, 4.8kV: A480R-1HE with hookeye
| Catalog Number | Size | Continuous Ampere Rating at 40°C | Dim. L | Minimum Interrupting Rating RMS Amperes | 1 Phase Interrupting Rating, UL Component Recognition: RMS Asym | UL Component Recognition: RMS Sym | Maximum Tested: RMS Asym | Maximum Tested: RMS Sym | Notes |
|---|---|---|---|---|---|---|---|---|---|
| A480R2R-1HE+ | 2R | 70 | 16-1/8 (410mm) | 190 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R3R-1HE+ | 3R | 100 | 16-1/8 (410mm) | 225 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R4R-1HE+ | 4R | 130 | 16-1/8 (410mm) | 330 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R5R-1HE+ | 5R | 150 | 16-1/8 (410mm) | 400 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R6R-1HE+ | 6R | 170 | 16-1/8 (410mm) | 500 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R9R-1HE+ | 9R | 200 | 16-1/8 (410mm) | 740 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R12R-1HE+ | 12R | 230 | 16-1/8 (410mm) | 955 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R18R-1HE+ | 18R | 390 | 16-1/8 (410mm) | 1440 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V | |
| A480R24R-1HE+ | 24R | 450 | 16-1/8 (410mm) | 1910 | 80kA @ 5080V | 50kA @ 5080V | 100kA @ 5500V | 63kA @ 5500V |