ABB 1MRK000508-BD Binary Input Module 16 Channels RL110 110-125VDC BIM for Protection Control System Product Overview The ABB 1MRK000508-BD binary input module is a digital signal interface module specifically developed for industrial automation, electrical control, and power protection systems. This module receives binary signals from on-site devices and transmits operational status information to compatible control devices, supporting efficient monitoring and coordinated