CR305X200B is a General Electric industrial control relay auxiliary contact kit for the CR305 motor starter/contactor, providing a single normally closed auxiliary contact (1NC). It is designed to be used with CR305 devices to add auxiliary signaling or interlock capability in control circuits. The CR305 family is a NEMA size 3 magnetic contactor, and this kit (X200B) is the GE part number for adding that auxiliary contact to a CR305 installation.
