Basler Electric


Basler Electric is a manufacturer of power systems products based in Highland, Illinois.
Founded in 1942 by Carl Basler, it began producing custom transformers three years later; in 1959, Basler released the SRA voltage regulator. The company also manufactures solid-state and multifunction digital protective relays, generator and engine controls, and static excitation systems.
On December 11, 2025, Littelfuse announced that it had completed its acquisition of Basler Electric.

History