The ABB external current transformer used for currents up to 500 A on primary side. The secondary side is feed to the UMC100.3 motor controller. This enables the UMC100.3 to see up to the primary current.
It has screw terminals Suitable for UMC100-FBP, UMC100.3 IEC/EN 60947-1, IEC/EN 60947-4-1 standard