REF542plus 1VCF752000 ABB feeder terminal unit

• Brand
  ABB
• Model
  REF542plus
• Order Number
  1VCF752000
• Product Name
  Multifunctional Protection and Switchbay Control Unit
• Country of Origin
  Germany
• HS Code
  8537101100
• Dimensions
  200mm*100mm*150mm
• Weight
  2.5 kg (5.5 lb)
• Operating Temperature
  −25 °C to +70 °C
• Storage temperature
  −40 °C to +85 °C
• Warranty
  12 month
• Product Status
  New and original

ABB REF542plus 1VCF752000 Product Overview and Technical Specifications

Inputs:
Analog Inputs: 3*phase current (1/5 A CT), 1*residual current (1/5 A CT); 4-20 mA optional

Binary Inputs: Up to 16 (24-250 V DC/AC) for status/interlocks

Outputs:
Relay Outputs: Up to 6 programmable (5 A @ 250 VAC) for trips/alarms

Analog Outputs: Optional 0/4-20 mA for process signals

Communication: IEC 61850 (GOOSE/MMS), Modbus RTU/TCP, DNP3, Profibus DP

Power Supply:

Voltage: 24-250 V DC / 24-230 V AC (50/60 Hz), ±20% tolerance

Consumption: <20 W

Enclosure Rating: IP54 (front), IP20 (terminals)

Certifications: IEC 60255, UL 1053, CE, ATEX Zone 2

Product Advantages:

All-in-One Functionality: Eliminates need for separate protection/control devices

High Precision: ±0.5% measurement accuracy for voltage/current

Seamless Integration: IEC 61850 compliance for substation automation

Flexible Configuration: FUPLA graphical logic editor for custom schemes

Durability: Withstands vibration, humidity, and wide temperature ranges

Applications:

Power Utilities: Medium-voltage feeder protection in distribution substations

Oil & Gas: Motor/transformer protection in refineries and pipelines

Process Industries: Switchgear control in chemical, pharmaceutical, and pulp/paper plants

Renewables: Grid connection protection for wind/solar farms

Core Functions:

Protection: Overcurrent (50/51), earth fault (50N/51N), directional protection (67), arc flash, thermal overload

Control: Breaker tripping/closing, auto-reclosing (1-3 shots), interlocking

Measurement: Voltage, current, power, energy, frequency, and power factor

Monitoring: Trip coil supervision, spring charging, contact wear, and fault diagnostics

Communication: Real-time data exchange with SCADA, DCS, and asset management systems

Key Features:

Modular Architecture: Separated HMI and base unit; hot-swap modules

Triple-Processor Design: DSP (protection), MCU (control), Comm-CPU (communication)

Multilingual LCD: 2×16-character display for single‑line diagrams and diagnostics

Arc Flash Protection: <7 ms response with external LIGHTARC sensors

Fault Recording: 32-sample/sec waveform capture; 512-event SOE (1 ms resolution)

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