REF601BE446BD1NH | ABB REF601 Feeder Protection Relay
Description
REF601BE446BD1NH | ABB REF601 Feeder Protection Relay is a dedicated numerical feeder protection and control relay designed for utility and industrial power systems in primary and secondary distribution networks. It combines optimized protection, monitoring, and control functionality in a single unit, with support for both conventional current transformer interfaces and Rogowski current sensor analog interfaces for compact medium voltage switchgear design.
| Specification | Value |
|---|---|
| Input Voltage Range | 85 – 240V AC/DC |
| Rated Current | 1A to 6000A |
| Operating Temperature Range | -20 to 85 degrees Celsius |
| Communication Interfaces | RS-232, RS-485, Ethernet |
| Protection Rating | IP65 |
| Dimensions | 483 mm x 305 mm x 210 mm |
| Weight | Approximately 0.9 kilograms |
Key Features:
- Multi-functional protection including overcurrent, earth-fault, phase-discontinuity, negative-phase sequence, thermal-overload, short-circuit, and differential protection
- High-precision measurement of voltage, current, power, and power factor
- Programmable logic for custom control operations
- Hot-swappable design for tool-free installation and replacement without system shutdown
- Inrush current stabilization for distribution transformers and cold-load pick-up function for feeder re-energization
- Extensive self-supervision of hardware and software
- Press-fit mounting for fast, easy installation
Applications:
- Main protection for overhead lines and cable feeders in solidly earthed, resistance-earthed, or isolated networks
- Utility and industrial power distribution systems
- Power plants, renewable energy systems, and railway power systems
- Industrial automation and process control systems
Related Models:
- REF601 CE446BB1NH
- REF601BD446NB1NH