• Model: REF615F
• Brand: ABB
• Series: Relion 615
• Core Function: Feeder protection and control for distribution networks
• Type: Numerical Protection IED
• Key Specs: Non-directional overcurrent and earth-fault, IEC 61850, -40 to +70°C

Condition: New Original (New Surplus), not refurbished

Product Introduction

Maintenance leads in substations often face urgent swaps when a feeder relay fails during peak load. The ABB REF615F serves as a direct-fit numerical IED for overhead lines and cable feeders in radial or meshed distribution systems.

This configuration provides solid non-directional overcurrent and earth-fault protection with added measurement and control capabilities. It supports fast fault isolation in utility and industrial setups. Field teams value its compact drawout design that cuts replacement time compared to older electromechanical units.

Choose the ABB REF615F for applications needing reliable protection without extended lead times. It delivers typical instantaneous trip times under 40 ms and has passed bench testing including full I/O simulation. Always verify the exact order code and firmware against your existing installation.

Key Selling Points & Differentiators

• Achieves fault clearing in under 40 ms for high-set overcurrent stages in most configurations
• Ships with full QC test report including 24-hour burn-in and comms verification
• Offers broader earth-fault sensitivity than basic current-only relays in resistance-grounded networks
• Not recommended for applications needing differential protection or high-speed arc-flash without supplementary devices
• Verified to IEC standards with insulation resistance >10 MΩ during electrical tests