ABB REF630 Feeder Protection and Control Relay – Product Description

Description / Overview

The ABB REF630 is a versatile feeder protection and control relay designed for medium-voltage distribution networks across utility and industrial environments. It belongs to ABB’s Relion® 630 series, offering modular configuration, advanced fault detection, and reliable system monitoring. Moreover, the relay supports digital-substation architectures, enabling seamless integration into modern SCADA and automation platforms. In addition, its high-performance measurement functions help operators maintain grid stability during varying load and fault conditions. Therefore, engineers rely on the REF630 when they need dependable protection with strong communication capabilities.

Technical Data / Specifications

Model: REF630
Series: Relion® 630 series
Type: Feeder Protection and Control Relay
System Compatibility: Medium-voltage utility and industrial distribution
Protection Functions: Overcurrent, earth-fault, thermal overload, voltage and frequency protection
Control Functions: Feeder bay control, breaker monitoring, trip-circuit supervision
Measurement: Current, voltage, frequency, power, energy
Communication Protocols: IEC 61850, Modbus, DNP3, SPA, LON, Profibus
Disturbance Recording: Fault location, event log, disturbance recorder
Supply Voltage: 24–250 V DC / 100–240 V AC (model dependent)
Operating Temperature: –40 °C to +85 °C
Mounting: Panel-mount, optional 19-inch rack
Dimensions (H × W × D): Approx. 177 × 177 × 220 mm
Weight: 3–4 kg
Application Areas: Power distribution feeders, substations, industrial electrical networks

FAQ

Q1: Does the REF630 support IEC 61850 for digital-substation integration?
Yes. The relay fully supports IEC 61850 features, including GOOSE messaging and advanced data models.

Q2: Can the relay provide both protection and control functions?
Yes. It integrates feeder protection with bay-level control capabilities in a single device.

Q3: Is the REF630 suitable for networks with distributed generation?
Yes. It performs well in feeder systems that include renewable or distributed generation sources.

Q4: Does the relay include disturbance recording tools?
Yes. It provides disturbance logs, event records, and fault-location information.

Q5: What communication protocols are available?
The REF630 supports IEC 61850, Modbus, DNP3, SPA, LON, and Profibus for flexible integration.