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Free EV Engineering Webinar:

Optimize Power Distribution Unit Design Times And Costs With Modular Technology

Presented by:

  • Geoffrey Schwartz, Principal Applications Engineer - Americas, Littelfuse

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Sep 16, 2025, 11:45 am EDT

The Power Distribution Unit (PDU) is an indispensable piece of hardware that directs/distributes power from a main power bus to a number of branch circuits. In addition, the opportunity is often taken to add control features and circuit protection to the application; typically, in the form of fuses, relays and/or circuit breakers. Traditionally, the PDU was a physical box of plastic or metal, which contained the needed busbars, headers, fuse holders and control features and circuit protection. The process to create this box required multiple iterations to ensure that all these components would fit cost and space efficiently inside.

Now, Littelfuse will introduce a twist. This webinar will provide details on a module approach to create a fuse-based PDU in an ad-hoc manner. In other words, a series of fuse blocks and busbars will allow any engineer to customize a new PDU using off-the-shelf components. In addition, since there is no need to design a physical box, the engineer can use internal resources to assemble the PDU, or work with a value-add partner to assemble and populate the PDU.

This webinar will walk through the process to identify and select the components to create single, as well as dual, voltage PDUs. The types of fuses that can be used in these PDUs include ZCASE, MEGA/MIDI and many high-voltage devices (10EV, 20EV, 25EV1K, 30EV1K, etc.) to address bus voltages from 12VDC/24VDC to 1,000VDC.



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