Product Overview

The REF615C_C is a dedicated feeder protection and control relay part of the ABB Relion 615 series. It is engineered for the comprehensive protection, measurement, and supervision of distribution feeders in medium-voltage utility and industrial power networks. Designed specifically to support the IEC 61850 standard for substation automation, the REF615C_C provides a sophisticated platform for overcurrent, earth-fault, and voltage-based protection. Its high-speed communication capabilities and native support for GOOSE messaging ensure rapid fault clearing and enhanced system stability in modern smart grids and renewable energy installations.

Detailed Technical Specifications

• Manufacturer: ABB Group

• Model Designation: REF615C_C

• Product Series: Relion 615 Series

• Device Type: Feeder Protection and Control Relay

• Auxiliary Power Supply: 24–250 V AC/DC (Universal wide-range input)

• Protection Logic: Directional/non-directional overcurrent, earth-fault, thermal overload, voltage, and frequency protection

• Integrated Measurement: Three-phase current/voltage, neutral current/voltage, frequency, power, and energy

• Communication Protocols: Native IEC 61850 (Edition 1 & 2), Modbus RTU/TCP, DNP3, and SPA

• Physical Interfaces: RJ-45 Ethernet, Serial ports (RS-485/RS-232), optional Fiber Optic LC connectors

• Monitoring & Recording: Built-in 1 kHz disturbance recorder (COMTRADE) and sequence-of-events (SoE) log

• Control Functions: Local/Remote control of up to two circuit breakers with integrated interlocking logic

• Operating Temperature: -40°C to +55°C (Extended range available)

• Ingress Protection: IP54 (Front panel) / IP20 (Rear terminals)

• Dimensions (HxWxD): 177 x 212 x 223 mm

• Weight: 4.0 kg

• Compliance: IEC 60255, CE, UL Listed

• Country of Origin: Finland / Sweden