REF542PLUS ABB | Medium-Voltage Feeder Protection Unit
Manufacturer: ABB
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Part Number: REF542PLUS CL044123236
Condition：New with Original Package
Product Type: Medium-Voltage Feeder Protection Unit
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Description
The ABB REF542PLUS (CL044123236) is a compact digital feeder terminal designed for medium-voltage applications, including feeder, transformer, and motor protection. It combines measurement, monitoring, protection, control, and self-diagnostics in a single device, reducing the need for multiple separate components. Moreover, its integrated communication protocols allow seamless integration into ABB or third-party substation automation systems, enhancing operational efficiency and reliability.
This feeder terminal provides precise protection functions, including overcurrent, earth-fault, voltage, and frequency protection. In addition, it supports breaker and switch control while offering accurate measurement and monitoring of electrical parameters. Its compact and modular design ensures easy installation, scalability, and maintenance, making it ideal for modern substation automation. Furthermore, the REF542PLUS is engineered for reliable operation in industrial environments with IP54 protection and wide temperature tolerance.
Technical Specifications
| Attribute | Specification |
|---|---|
| Model | REF542PLUS CL044123236 |
| Type | Digital Feeder Terminal / Bay Control Unit |
| System Compatibility | Medium-voltage distribution systems |
| Protection Functions | Overcurrent, Earth-fault, Voltage, Frequency |
| Control Functions | Breaker and switch control |
| Measurement Accuracy | ±0.5% (current/voltage) |
| Communication Protocols | IEC 60870-5-103, Modbus, optional IEC 61850 |
| Binary Inputs/Outputs | Multiple configurable channels |
| Auxiliary Supply Voltage | 24–250 V DC / 100–240 V AC |
| Operating Temperature | –10 °C to +55 °C |
| Storage Temperature | –40 °C to +85 °C |
| Protection Class | IP54 |
| Country of Origin | Switzerland / Italy |
| Application Areas | Feeder protection, transformer bays, motor protection, substation automation |
FAQ
Q1: What applications is the REF542PLUS suitable for?
A1: It is suitable for feeder protection, transformer bays, motor protection, and substation automation.
Q2: Which communication protocols are supported?
A2: The REF542PLUS supports IEC 60870-5-103, Modbus, and optionally IEC 61850.
Q3: Can it control breakers and switches?
A3: Yes, it provides integrated breaker and switch control functions for medium-voltage systems.
Q4: What are the protection functions included?
A4: Overcurrent, earth-fault, voltage, and frequency protection are all supported.
Q5: How robust is the device for industrial environments?
A5: It features IP54 protection, wide temperature tolerance, and reliable EMC performance.