ASEA BROWN BOVERI BC145 Printed Circuit Board

The BC145 is an ABB Baldor signal isolator board (FSCN3000A31) designed to provide electrical isolation for control signals within Baldor/ABB DC drive systems. This printed-circuit board isolates the controller interface from higher-power circuits to protect drive electronics from noise and transients while preserving existing control wiring. It supports a BC-series ecosystem and is listed for use with BC154, BCWD140, BC155, BC354, BC160, BC141, and BC140 DC controls, making it a common replacement part in legacy Baldor-ABB configurations. Manufactured by ABB Motors and Mechanical, the BC145 enables continued operation of automation panels, retrofits, and service work where signal isolation between the control interface and the drive’s power electronics is required. As a replacement PCB in older Baldor-ABB drive installations, it helps maintain compatibility with assorted control signals and wiring schemes used in industrial applications.