New High Voltage Power Distribution Unit from Littelfuse

DCS New High Voltage Power Distribution Unit from Littelfuse 1 400

July 8, 2022

 

Littelfuse’s customizable HV PDU can be designed for any voltage, providing solutions for OEMs installing the latest EV battery technology. By combining their high-voltage DC contactors and fuses in an IP67/6K9K-rated enclosure, optimizing power distribution with busbars and PCBAs, and adding temperature sensing and current sensing capabilities, the HV PDU safely, reliably, and efficiently distributes power from a high-voltage battery module to the high-voltage systems of a vehicle.

The high-voltage components are electrically connected through the busbar and wiring harness, which creates a high-voltage system for electric and hybrid-electric vehicles.

The system provides functions such as charge and discharge control, high-voltage component power-on control, circuit overload and short-circuit protection, high-voltage sampling, and low-voltage control. These functions protect and monitor the operation of the high-voltage system.

The HV PDU can also integrate battery master switch main control, charging module, DC/DC converter, PTC control module, and other functions. Compared to traditional PDUs, the HV PDU features more vehicle functional modules, which are more integrated in function and more complicated in structure, with heat dissipation structures such as water cooling or air cooling.

 DCS New High Voltage Power Distribution Unit from Littelfuse 2 400

Customizable 

Built within an IP67/6K9K-rated centralized junction box, Littelfuse’s HV PDUs provide customizable system integration of:

  • •DC/DC conversion
  • •On-board charging
  • •Pre-charge functions
  • •Current and voltage measurement
  • •Insulation monitoring
  • •HVIL and shielding

Littelfuse Logo 300x150

 

 

 

To learn more, download the Data Sheet by clicking here or visit the Product Page by clicking here 

 

Related Articles

Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More

Latest Articles

  • How Festo is Building the Next-Gen Workforce Through Technical Education & Skills Competitions

    How Festo is Building the Next-Gen Workforce Through Technical Education & Skills Competitions

    July 31, 2026 By Krystie Johnston Festo is a leader in industrial automation and technical education. For decades, they have sponsored SkillsUSA and WorldSkills mechatronics competitions to align education and industry, supporting the workforce of the future. Festo Didactic (the teaching arm of the Festo Group) has been an active participant and sponsor of SkillsUSA… Read More…

  • Driving the Clean Energy Transition with High-Voltage Power Transformers

    July 23, 2026 Utility-Scale Renewable Energy Project, Jan 2026 Project Overview A global renewable energy leader—operating across Europe, North America, and Latin America—continues to expand its portfolio of utility-scale solar and wind projects to accelerate the net-zero transition. With deep expertise in development, investment, and asset management, the organization focuses on delivering long-term, low-risk clean energy… Read More…