ABB REF542PLUS

Description

Parameters and Specifications

• Input Voltage: 200~250VAC, 47~63Hz¹
• Output Voltage: 24VDC¹
• Output Current: 20A¹
• Power: 480W¹
• Working Temperature: -25℃~+70℃¹
• Efficiency: Over 90% using high-efficiency switching power supply technology¹

Dimensions and Weight

• Dimensions: 225 mm x 110 mm x 50 mm²
• Weight: 2.0 kg¹

Series

• REF542PLUS is a model within the ABB REF542 series

Features

• Integrated Functionality: REF542PLUS combines protection, control, measurement, communication, and monitoring functions into a single unit²³.
• Flexibility and Scalability: It can be used for feeder protection, transformer protection, motor protection and control, or as a standalone control device²³.
• Programmable Environment: All functions are achieved through a programmable environment²³.
• Optimized Design: Specifically designed for air or gas-insulated medium-voltage switchgear¹⁶.
• Up to 24 Protection Configurations: Achievable through software²³.
• Graphical Human-Machine Interface (HMI): Supports Chinese²³.
• Separated Design: Host unit and operation panel are separated for installation flexibility¹⁶.
• Multiple Communication Protocols: Including IEC61850²³⁴.
• Multiple Certifications: With years of domestic and international application performance³⁴.
• Integration Capability: Can seamlessly integrate with other ABB power distribution automation products and third-party substation automation systems²³⁴.

Applications

• REF542PLUS is an excellent solution for digital control and protection of medium-voltage switchgear, whether or not equipped with a back-end system