ABB|REJ603BB401NN31E|Feeder Protection Relay
ABB REJ603BB401NN31E Feeder Protection Relay
Description
The ABB REJ603BB401NN31E is a multifunctional feeder protection and control relay designed for distribution networks, providing overcurrent, earth-fault, and circuit-breaker failure protection.
Features
- Integrated protection, control, monitoring, and metering functions
- Suitable for radial and ring-fed distribution feeders
- Supports IEC 61850 communication (optional)
- Compact design for panel or switchgear mounting
Technical Specifications
- Manufacturer: ABB
- Model Number: REJ603BB401NN31E
- Relay Type: Feeder Protection Relay (part of Relion® REJ603 series)
- Rated Voltage: 100–240 V AC/DC (dual-range power supply)
- Current Inputs: 1 A or 5 A (configurable)
-
Protection Functions:
- 3-phase overcurrent (definite & inverse time)
- Earth-fault protection (directional or non-directional)
- Circuit-breaker failure detection
- Thermal overload protection
- Operating Temperature: –25 °C to +55 °C
ABB|REJ603BB401NN31E|Feeder Protection Relay
ABB|REJ603BB401NN31E|Feeder Protection Relay
ABB REJ603BB401NN31E Feeder Protection Relay
Description
The ABB REJ603BB401NN31E is a multifunctional feeder protection and control relay designed for distribution networks, providing overcurrent, earth-fault, and circuit-breaker failure protection.
Features
- Integrated protection, control, monitoring, and metering functions
- Suitable for radial and ring-fed distribution feeders
- Supports IEC 61850 communication (optional)
- Compact design for panel or switchgear mounting
Technical Specifications
- Manufacturer: ABB
- Model Number: REJ603BB401NN31E
- Relay Type: Feeder Protection Relay (part of Relion® REJ603 series)
- Rated Voltage: 100–240 V AC/DC (dual-range power supply)
- Current Inputs: 1 A or 5 A (configurable)
-
Protection Functions:
- 3-phase overcurrent (definite & inverse time)
- Earth-fault protection (directional or non-directional)
- Circuit-breaker failure detection
- Thermal overload protection
- Operating Temperature: –25 °C to +55 °C
