ABB REF542PLIS 1VCR007346 Medium-Voltage Digital Bay Controller

The ABB REF542PLIS 1VCR007346 is a compact digital feeder terminal designed for medium-voltage switchgear. It combines protection, control, measurement, and communication functions into one unit. ABB developed it to support distribution automation and substation modernization. Its modular and flexible design simplifies installation and maintenance. The device supports multiple communication protocols, including IEC 61850, making it ideal for modern smart grid applications.

Technical Specifications

Model: REF542PLIS

Part Number: 1VCR007346

System Type: Medium-voltage digital bay controller

Inputs and Outputs:

• Analog Inputs: Measure current and voltage
• Binary Inputs: Receive status signals (e.g., breaker open/close)
• Binary Outputs: Send control commands (e.g., trip or close breaker)

Display and HMI:

• Integrated graphical display
• Supports local control and parameterization

Protection Functions:

• ANSI codes: 50, 51, 67, 27, 59, 81
• User-defined settings for each protection element

Measurement Accuracy:

• Up to Class 0.5 or Class 0.2 (energy measurement)

Communication Ports:

• Ethernet
• RS-485
• Fiber optic options
• Supports IEC 61850 and other standard protocols

Environmental Ratings:

• Operating Temperature: –25°C to +70°C
• Protection Class: IP54 (front), IP20 (rear)
• Fully compliant with IEC EMC and safety standards

Mounting:

• Panel-mounted or installed in switchgear cubicles
• Modular design for easy upgrades and maintenance

Auxiliary Power Supply:

• 24–48 V DC
• 48–250 V DC
• 100–240 V AC/DC