Power Distribution System Series - Power Distribution System

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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.

Safe distribution of power to multiple fuse holders in a compact design is a key objective for panel designers. The Littelfuse UL508 bus bar system eliminates most wire terminations in a time saving package. A power distribution block and associated conductors are no longer needed to feed multiple POWR-SAFE™ fuse holders.


  • Decreases wiring terminations
  • Small footprint reduces space requirements
  • Reduces assembly time
  • Prevents accidental finger exposure
  • Quick and safe method of changing fuse holder configurations
  • Allows for future expansion
  • Improves troubleshooting
  • Eliminates power distribution block
  • RoHS compliant and lead (Pb) free


This product is simple to integrate into one- and three-phase applications. It offers multiple pole configurations and amperage ratings to match the designer’s requirements. Instructions are included for bus bar cutting by the customer for further customization.

Individual power feed lugs are available which allow termination at any point along the bus bar.

Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
1PH4P25MM BUSBAR 1 PHASE 4 POLE 25MM RoHS No 03/31/2009 PbFree No
3PH12P18MM BUSBAR 3 PHASE 12 POLE 18MM RoHS No 03/31/2009 PbFree No CoC_RoHS10_3PH12P18MM REACH205_Declaration_3PH12P18MM
Does not Contain IPC_3PH12P18MM
3PH12P25MM BUSBAR 3 PHASE 12 POLE 25MM RoHS No 03/31/2009 PbFree No CoC_RoHS10_3PH12P25MM REACH205_Declaration_3PH12P25MM
Does not Contain IPC_3PH12P25MM
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