Product Core Brief
- Model: REM620C_F NCMNAAAAABC2BNN1XF
- Brand: ABB
- Series: Relion 620
- Core Function: Protects and controls medium to large motors.
- Type: Motor Protection IED
- Key Specs: Differential protection, 7 CT / multiple RTD inputs, IEC 61850 support
Condition: New Original (New Surplus) — not refurbished. Discontinued in some variants — check current availability.
Product Introduction
Field teams swapping out a motor relay in a running plant know the drill. The ABB REM620C_F NCMNAAAAABC2BNN1XF delivers dedicated protection, control, measurement, and supervision for medium and large asynchronous or synchronous motors. This configuration targets applications needing differential protection in manufacturing and process environments.
In my experience, this unit cuts motor start-up supervision issues and locked rotor trips effectively. It supports key protocols like IEC 61850 and Modbus. Expect reliable operation across wide temperature ranges with proper configuration. Bottom line — it works when the wiring and settings match your motor data sheet.







