ABB REF542PLUS integrated protection relay
Product Model: REF542PLUS
Product Description: The REF542PLUS is a digital relay protection and control device designed for medium voltage applications, offering advanced protection, monitoring, and control functions for power transformers and feeders. It is equipped with comprehensive communication capabilities and flexible configuration options to enhance system reliability and operational efficiency.
Brand: ABB
Origin: Switzerland
Net Weight: 3.5 kg
Dimensions: 300 mm x 250 mm x 120 mm
Power Supply: 85-265 VAC / 50-60 Hz
Input/Output: 12 digital inputs, 8 digital outputs, 4 analog inputs, 4 relay outputs
Communication Interface: IEC 61850, Modbus TCP/IP, RS-232, RS-485
Use: Commonly used in electrical substations, industrial plants, and utility networks for transformer protection, feeder management, and automation of power distribution systems.
The above parameters are for reference only. Please contact our technical team for precise selection.






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