Product Core Brief
- Model: REJ601 BD446NN1XG
- Brand: ABB
- Series: Relion 605
- Core Function: Overcurrent and earth-fault feeder protection
- Product Type: Protection Relay
- Key Specs: 1/5 A CT | Modbus RTU | 24-265 V AC/DC
- Condition: New Original (New Surplus)
Key Technical Specifications
- Protection Functions: Non-directional overcurrent (low-set, high-set, instantaneous), earth-fault, phase discontinuity, negative sequence, thermal overload
- Current Inputs: Selectable 1 A or 5 A CT secondary (4 AC inputs: 3 phase + residual)
- Power Supply: Universal 24-265 V AC / 24-250 V DC ±20%
- Communication: Modbus RTU, IEC 60870-5-103
- Additional Features: Inrush current detection, autoreclosing, disturbance recorder
- Mounting: Compact flush or semi-flush case
- Standards: IEC 60255 compliant
- Operating Temperature: -25°C to +55°C
- Binary I/O: 4 digital inputs, 6 configurable relay outputs
- Power Consumption: < 10 W typical
- Event Recording: Events, fault records, disturbance records
Product Introduction ABB REJ601 BD446NN1XG is a numerical feeder protection relay from the Relion 605 series. It delivers overcurrent, earth-fault, and supplementary protections for utility and industrial distribution networks in primary and secondary substations.
This relay features preconfigured functions for fast commissioning, site-selectable CT ratios, and support for multiple protocols. It enables cost-effective protection upgrades in medium voltage systems through its compact size and flexible I/O configuration.
