Description
ABB REF620E_F NBFNAAAANDC1BNN1XF Feeder Protection Relay – Intelligent Distribution Automation Solution
ABB REF620E_F NBFNAAAANDC1BNN1XF is a high-performance feeder protection and control relay designed for medium-voltage power distribution systems. As part of ABB’s Relion® 620 series, the ABB REF620E_F NBFNAAAANDC1BNN1XF is widely used in substations, industrial plants, and utility networks to provide reliable protection, control, monitoring, and supervision of electrical feeders, ensuring safe and stable grid operation.
The product images presented are not actual photos. For more details or price negotiation, please contact us: Email: sales@fyplc.cn | Tel: +86 15359458915
Core Procurement Information
- Brand: ABB
- Model: REF620E_F NBFNAAAANDC1BNN1XF
- Availability: In Stock
- Delivery Time: 3–7 working days after payment
- Warranty: 12 Months
- Condition: New / Used (Tested OK)
- Product Type: Feeder Protection and Control Relay
- Rated Voltage: 24–48 VDC / 48–125 VDC (typical configuration)
- Power Supply: 48–250 VDC / 100–240 VAC

- Input/Output: Approx. 12 Digital Inputs / 8 Digital Outputs (expandable configuration)
- Analog Inputs: CT (1A/5A) and optional voltage inputs
- Protection Functions: Overcurrent, earth fault, thermal overload, breaker failure, directional protection
- Measurement Accuracy: ±0.5% for current and voltage
- Communication: IEC 61850, Modbus TCP/RTU, IEC 60870-5-103 (Ethernet with PRP/HSR redundancy)
- Display: Graphical LCD with programmable interface
- Operating Temperature: -40°C to +70°C
- Mounting: Panel or DIN rail installation
- Fault Recording: Up to 128 disturbance records (COMTRADE format)

Industry Applications
- Utility Substations: Protection and control of incoming and outgoing feeders in medium-voltage networks
- Industrial Power Systems: Ensures safe operation of distribution feeders in manufacturing and process plants
- Renewable Energy Integration: Supports stable feeder protection in solar and wind power distribution systems
- Infrastructure & Grid Automation: Ideal for smart grid and IEC 61850-based substation automation systems
The ABB REF620E_F NBFNAAAANDC1BNN1XF delivers comprehensive feeder protection, advanced communication, and high reliability, making it a critical component for modern power distribution systems requiring precision, safety, and seamless integration.





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