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Current Transformer Features High Turns Ratio with Permalloy T-Core Construction

July 9, 2025
Bourns’ latest current transformer provides high permeability and low energy losses, delivering high-frequency current sensing to power systems.

The Model PCP300-T414250S current transformer, the first member of Bourns’ new series of products, is built with high-efficiency permalloy material that helps reduce heat loss and energy consumption. The new series’ ability to achieve fast power-conversion rates with elevated precision enables it to support a wide range of rated current measurements and power quality-analysis applications. They include high-frequency current sensing in power meters and motor load monitoring.

The Model PCP300-T414250S current transformer has a maximum primary continuous current of 300 A, with a dielectric strength of up to 3.5 kV. Both are required to help ensure the safety of both equipment and personnel. It also features a protective coil housing design suitable for applications that operate in challenging environments.

Additional information can be found here.

About the Author

Lee Goldberg | Contributing Editor

Lee Goldberg is a self-identified “Recovering Engineer,” Maker/Hacker, Green-Tech Maven, Aviator, Gadfly, and Geek Dad. He spent the first 18 years of his career helping design microprocessors, embedded systems, renewable energy applications, and the occasional interplanetary spacecraft. After trading his ‘scope and soldering iron for a keyboard and a second career as a tech journalist, he’s spent the next two decades at several print and online engineering publications.

Lee’s current focus is power electronics, especially the technologies involved with energy efficiency, energy management, and renewable energy. This dovetails with his coverage of sustainable technologies and various environmental and social issues within the engineering community that he began in 1996. Lee also covers 3D printers, open-source hardware, and other Maker/Hacker technologies.

Lee holds a BSEE in Electrical Engineering from Thomas Edison College, and participated in a colloquium on technology, society, and the environment at Goddard College’s Institute for Social Ecology. His book, “Green Electronics/Green Bottom Line - A Commonsense Guide To Environmentally Responsible Engineering and Management,” was published by Newnes Press.

Lee, his wife Catherine, and his daughter Anwyn currently reside in the outskirts of Princeton N.J., where they masquerade as a typical suburban family.

Lee also writes the regular PowerBites series

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