Mersen 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. These fuses come with a 3 (size D) or 4 (size E) inch diameter barrels with ferrules and are mounted in spring reinforced clips Features
The Amp-Trap and 9F60 R-Rated fuses are UL Recognized
Ferrule mounting for standard clips and interchangeability with other brands of fuses
Current-limiting for superior equipment protection
Metal embossed catalog number and manufacturing date for lasting identification
Hookeye for non load-break isolation by hookstick:
On the 4.8kV an optional hookeye mounted in the factory is available
On all other 3" barrels if a hookeye is required, use the operating eye 9F61AAW612
Blown-fuse indicator to give positive identification of open fuse
Amp trap: 3" Barrel 2 lb tripped force - 0.50 Inch
9F60: 0.125 lb tripped force 0.20 Inch
Applications
Short circuit protection of medium voltage motors and motor controllers
Mersen 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. These fuses come with a 3 (size D) or 4 (size E) inch diameter barrels with ferrules and are mounted in spring reinforced clips
Features
- The Amp-Trap and 9F60 R-Rated fuses are UL Recognized
- Ferrule mounting for standard clips and interchangeability with other brands of fuses
- Current-limiting for superior equipment protection
- Metal embossed catalog number and manufacturing date for lasting identification
- Hookeye for non load-break isolation by hookstick:
- On the 4.8kV an optional hookeye mounted in the factory is available
- On all other 3" barrels if a hookeye is required, use the operating eye 9F61AAW612
- Blown-fuse indicator to give positive identification of open fuse
- Amp trap: 3" Barrel 2 lb tripped force - 0.50 Inch
- 9F60: 0.125 lb tripped force – 0.20 Inch
Applications
- Short circuit protection of medium voltage motors and motor controllers
