ABB | REF620 NBFNAANNNEA1BNN1XF | Feeder Protection and Control Relay

The ABB REF620 NBFNAANNNEA1BNN1XF is an advanced feeder protection and control relay engineered for the protection, control, measurement, and supervision of utility substations and industrial power systems. Part of ABB’s Relion product family, this intelligent electronic device (IED) provides comprehensive protection for overhead lines and cable feeders in radial, looped, and meshed distribution networks. Equipped with native IEC 61850 communication standards, advanced fault-locating capabilities, and programmable logic functions, it ensures maximum grid reliability, rapid fault clearing, and seamless integration into modern digital substation automation architectures.

Technical Datasheet Parameters

• Brand: ABB
• Model: REF620NBFNAANNNEA1BNN1XF
• Series: Relion 620 Series Protection Relays
• Product Name: Feeder Protection and Control IED
• Origin Country: Sweden / Finland / Switzerland (ABB Global Manufacturing)
• Lifecycle Status: Active Industrial / Substation Automation Tier
• Physical Dimensions: Standard 620-Series Rack Enclosure (Height: 177 mm × Width: 221 mm × Depth: 201 mm)
• Unit Weight: 3.8 kg
• Manufacturing Origin: ABB ISO-Certified Facility
• Power Rating: Auxiliary Control Voltage: 48–250V DC / 100–240V AC (Standard Dual-Rated Power Supply Module)

Recommended Alternative Series Models

For substation expansion, retrofitting, or alternative protection configurations, ten related models within the ABB Relion 620 and protection relay series include:

• ❖ REF620 (Standard Base Configuration Variants)
• ❖ REM620 (Motor Protection and Control Relay)
• ❖ RET620 (Transformer Protection and Control Relay)
• ❖ REC620 (Bay Control and Protection Relay)
• ❖ RER620 (Feeder Protection for Ring Main Units)
• ❖ REF615 (Compact Feeder Protection Relay)
• ❖ REF630 (Advanced Feeder Protection Relay)
• ❖ RET615 (Transformer Protection IED)
• ❖ REM615 (Motor Protection IED)
• ❖ REU615 (Voltage and Frequency Protection IED)