Siemens 3RA6400-1BB43 is a three-phase power contactor designed to switch three-phase loads in industrial electrical control panels. It belongs to Siemens’ 3RA line of contactors, commonly used in motor control applications, pumps, and other automation equipment within industrial systems. The model number 3RA6400-1BB43 identifies this specific Siemens three-phase switching device in the product lineup.
