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ABB REF620 NBFNAANNNDA1BBN1XF Feeder Protection Relay

ABB REF620 NBFNAANNNDA1BBN1XF is a digital feeder protection relay in the Relion® 620 Series, providing fast and reliable protection for medium-voltage feeders in industrial, utility, and critical infrastructure applications.

The relay features comprehensive protection functions, including phase and earth fault protection, directional overcurrent, voltage monitoring, and load shedding capabilities. It supports IEC 61850 communication for seamless integration into digital substations, enabling remote monitoring, control, and SCADA integration.

With configurable I/O, event recording, and disturbance logging, REF620 improves operational reliability, simplifies maintenance, and enhances system performance. Its robust industrial design ensures continuous operation under harsh conditions.

• Comprehensive Feeder Protection: Phase and earth fault, directional overcurrent, voltage monitoring, and load control.

• Fast Fault Detection: Minimizes downtime and prevents equipment damage.

• IEC 61850 Ready: Supports modern substation automation and GOOSE messaging.

• Advanced Monitoring & Control: Remote operation, event logging, and disturbance recording.

• Flexible Configuration: Scalable I/O and protection functions for various feeder applications.

• Robust Industrial Design: Reliable operation in harsh industrial and utility environments.

• Integration with SCADA: Seamless communication via IEC 61850, Modbus, DNP3, and IEC 60870-5 protocols.

• Medium-voltage distribution feeders in utility substations

• Industrial plant electrical distribution protection

• Renewable energy distribution networks

• Oil & gas and chemical plant feeder protection

• Smart grid and IEC 61850 digital substation applications

• Critical infrastructure and manufacturing facilities

Q1: What is ABB REF620 NBFNAANNNDA1BBN1XF used for?
A1: It is a digital feeder protection relay designed to safeguard medium-voltage feeders, monitor operations, and enable remote control in industrial and utility networks.

Q2: Which protection functions are included?
A2: Overcurrent, directional overcurrent, earth fault, voltage monitoring, and load shedding.

Q3: Can it integrate with digital substations and SCADA systems?
A3: Yes. It supports IEC 61850, Modbus, DNP3, and IEC 60870-5 communication protocols.

Q4: Is the relay suitable for harsh industrial environments?
A4: Yes, it is designed to operate reliably between -40°C and +70°C in industrial and utility conditions.

Q5: What is the advantage of using REF620?
A5: Provides fast, accurate protection, improves operational reliability, supports advanced automation, and simplifies maintenance.

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.