ABB REF615C-E Feeder Protection and Control Relay

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1. Product Overview

The ABB REF615C-E Feeder Protection and Control Relay is an advanced digital protection device designed for medium-voltage feeders and distribution systems. It integrates overcurrent, short-circuit, earth fault, directional protection, automatic reclosure, and remote communication, providing fast fault response and automation control to ensure reliable and stable power system operation.

2. Technical Specifications

• Model: REF615C-E

• Device Type: Feeder Protection and Control Relay

• Rated Voltage: AC 110–250 V / DC 110–220 V (selectable supply voltage)

• Protection Functions: Overcurrent, short-circuit, earth fault, directional protection

• Control Functions: Automatic reclosure, remote control, status monitoring

• Communication Interfaces: IEC 61850, Modbus RTU, DNP3

• Analog I/O: Supports analog monitoring and alarms

• Digital I/O: Supports remote control and alarm signaling

• Operating Temperature: -25 °C to +55 °C

• Protection Degree: IP54 (panel mounted)

• Mounting: Panel installation

• Dimensions: approx. 144 mm × 144 mm × 175 mm

• Weight: approx. 1.8 kg

• Standards: IEC 60255, IEC 61850

3. Key Advantages and Features

• Comprehensive Protection: Multiple protection functions integrated for enhanced system safety

• Fast Response: High-precision digital processing enables millisecond fault detection

• Automation Control: Supports automatic reclosure and remote monitoring to minimize downtime

• Flexible Communication: Compatible with various industrial communication protocols for easy integration

• Reliable and Durable: Industrial-grade design, strong interference resistance, suitable for complex electrical environments

4. Typical Applications

• Distribution network feeder protection

• Medium-voltage switchgear and distribution cabinets

• Industrial park power systems

• Urban power distribution and commercial buildings

• Renewable energy grid integration

5. Installation and Usage Notes

• Ensure power is off before installation

• Select the correct model according to system voltage and load

• Regularly check relay status, wiring, and communication interfaces

• Avoid high temperature, high humidity, and corrosive environments

• Follow ABB installation guidelines and local electrical safety codes

The structure and details of the product：

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