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Approvals & Standards


  • UL Recognized File E93367


Key features & benefits

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 are single, double, triple or quadruple barrels 3 inches diameter with end mounts designed for bolting directly to equipment bus or terminal pads.

More specifications



  • Short circuit protection of medium voltage motors and motor controllers


Product Specifications

Item Number



Back-Up R-Rated Medium Voltage Fuse 5080VAC 12R Mounting: Bolted Style: DAR0 Visual Indicator Amp-Trap®  

EAN/UPC code


Rated voltage AC UL

5080   V


50/60   Hz





AC Max I.R./Breaking Capacity: I1

65   kA

Minimum breaking capacitiy (MBC)

65   kA

Indication System


Indication System Type

Visual Indicator  

Contact materials

Silver-Plated Copper  

Connection/Terminal Type


Body/Insulating Material


Product Weight

5.4431   kg

Product Diameter

76.2   mm

Product Width

76.2   mm

Product Length

489   mm

Product Height

92.2   mm

Sell Pack Quantity

1   Each

Sell Pack Weight

5.7153   kg

Sell Pack Width

139.7   mm

Sell Pack Length

714.2   mm

Sell Pack Height

114.3   mm