The Cutler-Hammer 8251B-6501 Time Delay Logic Module is a compact control device that introduces a timed delay within electrical logic circuits, enabling coordinated sequencing in industrial controls. Identified as SER.B1 8251B6501, this module carries the 8251B-6501 part number and designation for configuration and replacement in legacy Eaton/Cutler-Hammer systems. In typical panel installations, it can be used to stagger inputs to relays or contactors or to create interlock timing that ensures orderly startup, operation, and safe shutdown of automation equipment.
