0FHZ0202Z - 400 A Bolt-Down Stud-Mount Fuse Holder Series

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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.

The ZCASE® SMZ Series Bolt-Down Stud-Mount Fuse Holder reduces the need for wiring and parts by allowing ZCASE® high-current fuses to be directly installed on an alternator, battery switch, or electrical relay. Thanks to an insulated M8 or M10 stud on the busbar, the compatible fuse (sold separately) and output cable with a ring terminal (not included) can be assembled using the included standard nut.

The SMZ Series M8 ZCASE® fuse holder is available with an M6, M8, or M10 mounting hole to meet the requirements of various applications, and the M10 ZCASE® fuse holder features an M10 mounting hole. Various configurations, including with a protective cover for the fuse only, with a protective cover for the fuse and mounting stud, and without a cover, are available.

Features and Benefits

  • Accepts high-current ZCASE® single bolt-down M8-size or M10-size fuses, depending on the model (fuses sold separately)
  • Available mounting hole sizes include M6, M8, and M10
  • Up to 3 SMZ Series fuse holders can be stacked to protect multiple circuits
  • Space-saving design eliminates the need to wire in a separate fuse holder or power distribution module (PDM)
  • Tin-plated copper busbar offers corrosion resistance
  • Red UL 94 V-0 rated cover is offered in 2 styles to provide protection from accidental contact - one option covers the fuse only, while the other option covers the fuse and the mounting stud
  • Total continuous current should not exceed 400 A per holder


  • Alternator, Battery Switch, or Electrical Relay Fusing
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
0FHZ0202Z Zcase Single Fuse Holder M8 busbar RoHS No 10/30/2018 PbFree No 10/30/2018 Yes
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