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2.5 kV Ferrule Mount Motor

Approvals & Standards
Amp-Trap: UL File E93367
9F60: UL File E191980

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

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

Key features & benefits

  • 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

Technical Specifications

Frequency (Hz) 50/60 Hz
Speed/Characteristic R-Rated
UL Category Code MSSS2
Reach Compliant Yes
Max Operating Temp. 80 °C

Reference Finder

27 references in this series

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Item number Ampere rating Fuse size Clearing I2t At Rated Voltage Indication System Product weight
A240R2R See product
 - - - Yes 3.4019kg
A240R36R See product
 - - - Yes 10.4326kg
A240R3R See product
 - - - Yes 3.4019kg
A240R4R See product
 - - - Yes 3.4019kg
A240R5R See product
 - - - Yes 3.4019kg
A240R6R See product
 - - - Yes 3.4019kg
A240R9R See product
 - - - Yes 3.4019kg
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