REF601 | ABB | Feeder Protection

Description

The REF601 supports MODBUS RTU and IEC 60870-5-103 communication via a two-wire RS485 interface. It features a universal power supply (24-265 V AC/DC) and a simple, quick push-fit installation. It has separable terminals with CT short-circuit facilities and offers field-selectable MODBUS RTU and IEC 60870-5-103 protocols.

Key Advantages

• Compact and flexible design
• Easy to operate and use
• Quick commissioning through selective testing of protection functions, secondary signals, and communication functions
• Equipped with self-monitoring capabilities
• Connects to traditional measuring sensors, suitable for compact medium-voltage switchgear with limited space

Main Features

• Suitable for cable, overhead line, or transformer feeders in grounded, resistance-grounded, or ungrounded systems
• Includes functions such as overcurrent, ground fault, phase discontinuity, overload protection, and inrush monitoring
• Provides circuit breaker control, reclosing, and measurement
• Pre-configured functions for quick commissioning
• Can set inputs and outputs via local HMI or communication interface
• Supports Modbus and IEC 60870-5-103 communication protocols