The ABB REM620E-F (configuration code NBMNAAABNEC1BNN1XF) is a dedicated motor protection and control relay within the Relion 620 series. Designed specifically for synchronous and asynchronous motors in medium-voltage networks, this IED (Intelligent Electronic Device) provides comprehensive protection, control, and monitoring to ensure the longevity and efficiency of high-power industrial motors.

 

Technical Functionality

The REM620 uses advanced thermal models to track motor heating and cooling, preventing damage from overloads while allowing for maximum operational uptime. It integrates seamless communication via IEC 61850 for substation automation and supports high-speed GOOSE messaging for fast-acting protection schemes and interlocking.

 

Key Specifications

 

Operational Precautions

• Configuration Tool: Use the PCM600 Protection and Control IED Manager for all parameter settings and logic configuration to ensure the device firmware remains synchronized.
• CT/VT Wiring: Ensure current and voltage transformer secondary circuits are correctly grounded and matched to the relay’s rated inputs to prevent measurement errors or hardware damage.
• Thermal Reset: Before manually resetting a thermal overload trip, verify the motor’s actual physical temperature to prevent insulation failure from repeated hot starts.

 

Common Questions Q&A

Q: Does this specific configuration support differential protection? A: Yes, the “E-F” variant typically includes high-performance motor differential protection to detect internal winding faults with high sensitivity.

Q: Can this relay be integrated into a non-ABB SCADA system? A: Absolutely. Through its support for industry-standard protocols like Modbus TCP and DNP3, it offers excellent interoperability with various third-party control platforms.

Recommended Similar Models

1. REM615: A more compact motor protection relay for standard applications.
2. REF620: The feeder protection equivalent within the same 620 series family.
3. RET620: A dedicated transformer protection and control relay for the 620 platform.
4. REM630: A high-end motor protection IED for complex, large-scale motor management.
5. REX640: The next-generation modular protection relay for all-in-one substation applications.

For technical documentation and stock availability of the ABB REM620E-F, please consult our current product catalog.