Product Core Brief
- Model: REF615C_E
- Brand: ABB
- Series: Relion® 615
- Core Function: Protects and monitors medium-voltage feeders
- Type: Feeder Protection and Control Relay
- Key Specs: IEC 61850/Modbus, directional and non-directional overcurrent protection, <20 ms trip response
- Condition: New Original (New Surplus)
- Availability: In Stock
- Warranty: 12 Months
Product Introduction
Technical positioning first — the ABB REF615C_E is a medium-voltage feeder protection relay designed for industrial substations, utility networks, and switchgear retrofits. It combines protection logic, event recording, breaker control, and communication into a compact, withdrawable plug-in unit.
Compared with legacy REF54x or SPACOM units, this relay processes directional and non-directional overcurrent and earth-fault logic faster while supporting IEC 61850 MMS, GOOSE messaging, PRP/HSR redundancy, and Modbus RTU/TCP. In field deployments of AC800M and MicroSCADA, engineers typically choose REF615C_E for selective fault isolation, fast tripping, and integration into digital substations. Trip response is rated <20 ms depending on stage configuration.







