ZCASE® BMZF Series - 32V Bolt-Down Forged Battery-Mounted Fuse Holder

Series: ZCASE® BMZF
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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 Littelfuse ZCASE® BMZF Series 32V Bolt-Down Forged Battery-Mounted Fuse Holder features a built-in battery clamp, which allows the installation of ZCASE® M10 fuses (sold separately) directly on a post-style battery terminal. Made with forged brass, the compact battery post fuse holder is designed for heavy-duty, high-current applications in crowded spaces.

Utilizing a special insulated bolt, the ZCASE® BMZF Series fuse holder ensures reliable high-current connections. The metal bolt head and mineral isolating washer enable the proper torque application and help prevent torque reduction over time. The bolt assembly also features an integrated isolation shell to prevents current from bypassing the fuse element.

The ZCASE® BMZF Series is available as a single-fuse holder as well as a multi-fuse holder (2- or 3- position). Kits come with a red UL 94 rated cover to help prevent accidental contact with the fusing.

Features and Benefits

  • Compatible with Littelfuse ZCASE® M10 high-current bolt-down fuses (sold separately)
  • Built-in battery clamp enables installation of high-current fusing directly on a post-style battery terminal
  • Forged brass design withstands heavy cables and harsh battery box and underhood conditions
  • Compact footprint and direct-mounting style reduce wiring and eliminate costs traditionally associated with high-current fuse holders
  • Insulated bolt features a metal bolt head for proper torque application and a reliable high-current connection
  • Mineral isolating washer prevents long-term torque reduction due to creep
  • Available in 1-position, 2-position, and 3-position fuse holder configurations

Applications

  • High-Current Starter Fusing
  • Pre-Fuse Short Circuit Protection
  • Battery Box / Engine Compartment Fusing
  • High-Current Accessory Fusing
  • Work Truck Body Modifications to OEM Chassis

Product Literature

BMZF Series Battery Mount ZCASE Fuse Holder 3D model landing page

Access specifications, certifications, check availability and order parts below

Catalog #Mounting MethodFuse TypeCurrent Rating (Max)Current Rating (Continuous) in AmpsVoltage Rating MaxTemperature Maximum FahrenheitTemperature Minimum FahrenheitTemperature Maximum CelsiusTemperature Minimum CelsiusRecommended TorqueAgency Approval - ShockAgency Approval - VibrationIgnition protectionInput TerminalsOutput TerminalsStockSamplesCompare
901-704CheckOrder
901-705Check
FHZ00857Battery Post ClampZCASE32524332221-40105-40M10 Bolt: 16 ± 2 NmISO16750-4, 5.3.2ISO16750-4, 5.3.2V-2M8 Stud Mount HoleM10 BoltCheckOrder
FHZ00855
Obsolete: 2024 -03-27		Battery Post ClampZCASE25018732221-40105-40M10 Bolt: 16 ± 2 NmISO16750-4, 5.3.2ISO16750-4, 5.3.2V-2M8 Stud Mount HoleM10 BoltCheck
FHZ00855-BP
Obsolete: 2023 -10-30		Battery Post ClampZCASE25018732221-40105-40M10 Bolt: 16 ± 2 NmISO16750-4, 5.3.2ISO16750-4, 5.3.2V-2M8 Stud Mount HoleM10 BoltCheck
FHZ00855-BX
Obsolete: 2023 -10-30		Battery Post ClampZCASE25018732221-40105-40M10 Bolt: 16 ± 2 NmISO16750-4, 5.3.2ISO16750-4, 5.3.2V-2M8 Stud Mount HoleM10 BoltCheck
FHZ00856
Obsolete: 2024 -03-13		Battery Post ClampZCASE32524332221-40105-40M10 Bolt: 16 ± 2 NmISO16750-4, 5.3.2ISO16750-4, 5.3.2V-2M8 Stud Mount HoleM10 BoltCheck
FHZ00856-BX
Obsolete: 2023 -10-30		Battery Post ClampZCASE32524332221-40105-40M10 Bolt: 16 ± 2 NmISO16750-4, 5.3.2ISO16750-4, 5.3.2V-2M8 Stud Mount HoleM10 BoltCheck
FHZ00857-BX
Obsolete: 2023 -11-14		Battery Post ClampZCASE32524332221-40105-40M10 Bolt: 16 ± 2 NmISO16750-4, 5.3.2ISO16750-4, 5.3.2V-2M8 Stud Mount HoleM10 BoltCheck

3D Model - BMZF

BMZF Series Battery Mount ZCASE Fuse Holder Part Numbers: FHZ00855, FHZ00855-BX, FHZ00856, FHZ00856-BX, FHZ00857, and FHZ00857-BX
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