ABB REF542PLUS 1VCF752000 Feeder Protection Unit

The ABB REF542PLUS 1VCF752000, product reference 1VCF750170819, is a high-performance feeder protection and control unit engineered for modern medium-voltage distribution systems. Engineers appreciate its dependable protection logic because it enhances operational safety while maintaining stable grid performance in challenging industrial environments. Moreover, the unit integrates advanced monitoring and control functions, allowing operators to optimize feeder reliability and reduce unplanned outages across utility and industrial networks.

Its robust design, supported by ABB’s proven REF542plus platform, ensures long service life and flexible configuration options, making it a trusted choice for both new installations and retrofit projects.

Main Features & Functional Highlights

• Comprehensive protection suite covering overcurrent, earth fault, directional elements, and frequency functions

• Supports automatic reclosing for improved feeder continuity and service restoration

• Advanced control capabilities for breakers, disconnectors, and load shedding schemes

• Interoperable with major communication protocols including IEC 61850, Modbus, and DNP3

• Ruggedized design supporting wide power supply ranges and broad temperature conditions

• Engineered for scalable system integration in complex distribution automation architectures

Technical Specifications

Identification

• Model Number: REF542PLUS 1VCF752000 (1VCF750170819)

• Product Type: Feeder Protection and Control Unit

• Manufacturer: ABB

• Origin: Sweden

Protection Functions

• Overcurrent protection

• Earth fault protection

• Voltage and frequency protection

• Directional elements

• Automatic reclosing

Control Functions

• Circuit breaker control

• Disconnector control

• Load shedding

Communication

• IEC 61850

• Modbus

• DNP3

Inputs & Outputs

• Multiple digital and analog inputs

• Configurable relay outputs

Electrical & Environmental

• Power Supply: 24–250 V DC or 100–240 V AC

• Operating Temperature: -25°C to +55°C (-13°F to +131°F)

• Weight: 4.5 kg

Typical Applications

This unit is widely used across medium-voltage switchgear networks in utilities, heavy industrial plants, and renewable energy facilities requiring precise feeder protection. In addition, its versatile communication options support seamless automation integration, enabling engineers to modernize legacy systems with minimal disruption. Therefore, the REF542PLUS helps enhance grid reliability while supporting advanced control strategies in both radial and ring distribution architectures.

Support & Maintenance

Routine firmware checks, device diagnostics, and communication verification help maintain long-term performance. Moreover, ABB provides extensive documentation and lifecycle service programs, allowing teams to upgrade, configure, and troubleshoot the unit effectively throughout its operational lifespan.

FAQ

Q1: Which communication protocols are supported by the REF542PLUS?
It natively supports IEC 61850, Modbus, and DNP3 for flexible system integration.

Q2: Can this device manage both protection and control functions?
Yes. It combines feeder protection, breaker control, disconnector control, and load shedding.

Q3: Is the unit suitable for harsh operating environments?
Yes. Its -25°C to +55°C temperature range supports demanding industrial conditions.

Q4: Can it be used in retrofit projects?
Absolutely. The design offers strong compatibility for replacing older protection units.

Q5: What power supply ranges are available?
It operates from 24–250 V DC or 100–240 V AC, supporting broad installation flexibility.