MEGA® High Performance 70V SF56 Series - MEGA® HP 70V Automotive Bolt-Down 56mm Fuse

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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

MEGA® 70V High Performance SF56 automotive fuses employ diffusion pill technology to provide predictable time-delayed circuit protection. These MEGA fuses are ideal for protecting batteries, alternators, and heavy gauge wire harnesses that experience large inrushes of current. Use fuses with ampere ratings of between 350 A and 500 A only for short circuit protection.


  • Time-delayed
  • Available with ratings of 60 A to 500 A
  • Interrupting rating of 2.5 A at 70 V dc
  • Operate at up to 125 °C
  • Tin-plated copper alloy terminals
  • >1 MΩ open state resistance
  • PPA-GF33 housings with UL flammability ratings of HB
  • M6 (9 Nm ±1 Nm) and M8 (20 Nm ±1 Nm) mounting holes
  • Comply with ISO 20934 – Type SF56
  • RoHS compliant
    • Benefits

      • High-contrast, color-coded ampere rating stamps on housings aid identification
      • Available with two, one, or no mounting holes
      • 56 mm pitch prevents mistaken replacement with other types of high-current fuses


      • Cars and SUVs
      • Trucks
      • Buses
      • Offroad vehicles
      • Watercraft as approved by Littelfuse
To request product environmental information, please complete the Product Environmental Information Request Form.

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