MEGA 120V Series - MEGA 120V HP

Series: MEGA 120V
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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® 120V High Performance 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 the 450 A and 650 A fuses only for short circuit protection.


  • Time-delayed
  • Available with ratings of 60 A to 650 A
  • Interrupting rating of 2.5 kA at 120 V dc
  • Tin- and silver-plated terminals
  • Operate at up to 125 ℃
  • Tin-plated copper alloy terminals
  • PPA-GF33HS housing with UL flammability rating of HB
  • Net weight 12.1 g ±15 % per fuse
  • M6 (9 Nm ±1 Nm) and M8 (20 Nm ±1 Nm) mounting holes
  • Refer to ISO 20934 – Type SF56
  • RoHS compliant


  • High-contrast ampere rating stamps and color codes on housings aid identification
  • 56 mm pitch prevents mistaken replacement with other types of high-current fuses
  • Available with two, one, or no mounting holes
  • Provide more than 1 MΩ of resistance after fuse opens


  • Cars
  • Trucks
  • Offroad vehicles
  • Watercraft as approved by Littelfuse
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