ABB REF542PLUS 1VCR007346 Feeder Terminal Unit

The ABB REF542PLUS 1VCR007346 is a robust medium-voltage protection and control solution tailored for demanding power systems. Primarily used in industrial plants and utility networks, it safeguards critical infrastructure by managing overcurrent, earth faults, and voltage irregularities while enabling precise remote monitoring and control.

Engineers often deploy this unit in industrial power distribution systems or utility substations where reliability is critical. One customer in a steel manufacturing plant integrated it with their existing SCADA setup to reduce downtime during voltage sags. Our inventory includes complementary ABB models like the PM866 controller and IGCT power modules, ensuring seamless system compatibility for complex protection schemes.

What stands out is its modular logic programming capability – technicians can customize protection curves without external software. The dual power supply design (DC 24-250V or AC 110-240V) ensures continuous operation during grid fluctuations. Unlike older units, its built-in diagnostics automatically flagging component degradation reduced a wind farm’s maintenance costs by 30% last year. Supporting IEC 61850 integration means it adapts easily to modern digital substations without requiring full system overhauls.