ABB REF542plus 1VCR007346 Digital Protective Relay
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REF542PLUS is a digital protection relay from ABB, belonging to the REF542 series. It is a compact protection, control, measurement, and monitoring terminal used in power distribution systems and was discontinued in 2020. Here is its detailed information:
Functional Features
High precision and high reliability: Adopting advanced hardware and software design to ensure long-term stable operation of the equipment.
Multi functional integration: Integrating measurement, monitoring, protection, control, and self diagnostic functions to improve system reliability and efficiency.
Flexibility and Scalability: Supports multiple communication protocols such as Modbus, IEC 61850, DNP3.0, etc., and can adapt to different application scenarios.
User friendly: Equipped with an intuitive graphical human-machine interface (HMI), supporting Chinese display, simplifying configuration and operation.

Product parameters
Voltage Range: Typically designed for systems ranging from 6 to 36 kV, can be customized according to specific requirements.
Current range: up to 6000A maximum.
Communication interface: Supports protocols such as Modbus, IEC 61850, DNP3.0, etc., making it easy to integrate with the upper computer system.
Working temperature: -25 ℃ to+70 ℃ or -40 ℃ to+85 ℃, with a protection level of IP20 or IP65.
Size and weight: The external dimensions are 225mm x 110mm x 50mm, and the weight is 2.0kg.
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