Cegelec 20X4457B1L Power Supply Printed Circuit Board

Cegelec 20X4457B1L is a power supply and drive printed circuit board in the Cegelec 20X4457 family, used as a power supply/driver PCB within Cegelec/Converteam drive systems and commonly cataloged under the alternate number 20X4457. Some listings describe this module as an isolator board for LCI drive components, while others classify it as a phase gate drive device, indicating its role in controlling or gating power within a larger drive or automation assembly. The 20X4457B1L appears in supplier catalogs alongside other Cegelec power boards and is recognized by distributors as a legacy part that has been discontinued by the manufacturer. In practice, technicians seeking this board typically do so for repairing or restoring legacy Cegelec/Converteam equipment; when sourcing, confirm exact compatibility with the original drive/control module and obtain the original service notes to verify pinout, connectors, and mounting considerations.