ABB REF620 NBFNAANNNAA1BNN1XF Feeder Protection and Control Relay
ABB REF620 NBFNAANNNAA1BNN1XF Technical Specification
Model Type：REF620
Configuration Code：NBFNAANNNAA1BNN1XF
Product Category：Feeder Protection and Control Relay
Application Field：Power Distribution & Substation Automation
1. General Overview
ABB REF620 with configuration code NBFNAANNNAA1BNN1XF is an advanced feeder protection and control relay designed for medium and low voltage distribution networks. It integrates protection, measurement, control and communication functions, providing reliable and intelligent grid management capabilities for substations and industrial power systems.
2. Main Functional Features
• Comprehensive overcurrent, earth fault and voltage protection functions
• High-precision electrical measurement and event recording capability
• Support multiple standard communication protocols for network integration
• Compact design, strong anti-interference performance and easy field commissioning
3. Application & Standard Compliance
This relay is widely used in utility substations, industrial plants, commercial buildings and smart power distribution projects. All installation, parameter setting and maintenance operations must comply with ABB official technical documentation and relevant IEC industry standards.
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