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ABB

ABB REJ603BB401NN31E Self-Powered Feeder Protection Relay
SKU: REJ603BB401NN31E
In stock
Description
Description
The ABB REJ603BB401NN31E is a self-powered feeder protection relay from the Relion® 605 series. Designed for secondary distribution networks, it provides reliable overcurrent and earth-fault protection without requiring auxiliary power, making it ideal for remote or backup installations.

Specifications
  • Model: REJ603BB401NN31E
  • Series: Relion® 605
  • Type: Self-Powered Feeder Protection Relay
  • Power Supply: Directly powered by current transformers (CTs)
  • Application: Medium-voltage distribution feeders
  • Protection Functions: Overcurrent, earth-fault protection
  • Operating Temperature: -40°C to +55°C (typical)
  • Inputs/Outputs: Configurable binary inputs and outputs
  • Indication: LED and mechanical flag indicators
  • Communication: Optional HMI and testing interface
  • Country of Origin: Sweden
  • Warranty: 12 months
Features
  • Self-Powered Operation: Eliminates need for auxiliary supply, powered directly by CTs.
  • Reliable Protection: Provides continuous overcurrent and earth-fault protection for feeders.
  • Compact Design: Suitable for secondary distribution networks and remote installations.
  • Enhanced Safety: Built-in self-supervision ensures dependable performance.
  • Flexible Integration: Optional HMI for local monitoring and configuration.
  • Industrial Durability: Operates in harsh environments with wide temperature tolerance.
  • Global Compliance: Part of ABB’s Relion® series, meeting international standards for feeder protection.