Description
Key Technical Specifications
- Power Supply: 48-250 V DC / 100-240 V AC
- Communication Protocols: IEC 61850 MMS/GOOSE, line differential fiber or pilot wire
- Protection Functions: Line differential (stabilized and instantaneous), directional/non-directional overcurrent, earth-fault, breaker failure
- Measurement: Three-phase currents, residual current/voltage, sequence components
- I/O Capacity: Multiple binary inputs/outputs (specific to this hardware config)
- Operating Temperature: -25 to +70 °C
- Mounting: Compact 615 series case, flush or semi-flush
- HMI: LCD display with local control functions
- Differential Link: Supports fiber-optic or galvanic pilot wire
- Standards: IEC 61850, IEC 60255 compliant
- Application: Overhead lines, cable feeders, radial or meshed networks

Product Introduction
Substation maintenance leads often scramble for matching spares when a feeder differential trips offline. The ABB RED615 HCDCACADNKC2DAE11E is a phase-segregated two-end line differential protection and control IED from the Relion 615 series.
It delivers selective unit protection for overhead lines and cable feeders while bundling backup functions and breaker control. This configuration fits distribution networks with or without distributed generation, where fast fault isolation matters most.





