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, at 2.4, 4.8, and 7.2kV. 4.8 and 7.2kV fuses are UL Recognized. The 4.8kV (A480R) is available with hookeye tab. The 7.2kV (A072F) series has the same dimensions as the 4.8kV (A480R), allowing smaller 7.2kV equipment or 4.8kV upgrades, and is available as a bolt in version.
| Manufacturer | Mersen |
|---|---|
| Ampere | 18A |
| Voltage Rating | 2600V |
| Interrupt Rating | 100 kA IR |
| Speed | time delay |
| Class | current-limiting |
| Approvals | UL Recognized |
| Datasheet | Product Specifications |
| Item Weight | 7.5 lb |
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