Description
- The ABB REF542plus 1VCR007346 G0012 is a versatile feeder terminal designed for the protection, control, measurement, and monitoring of medium-voltage power systems. It combines high-speed digital signal processing with a user-friendly interface to manage switchgear functions, including motor, transformer, and line protection within a single integrated unit.
Product Parameters
- Model Code: 1VCR007346 G0012
- Supply Voltage: 48–240 V AC / 48–220 V DC
- Analog Inputs: 8 current/voltage sensor inputs
- Binary I/O: Configurable digital inputs and signal outputs
- Communication: Modbus RTU, Profibus DP, or IEC 61850 (optional)
Product Specifications
- Series: REF542plus / SACE series
- Protection Functions: Overcurrent, earth fault, motor start, and thermal overload
- Display: Integrated HMI with programmable function keys
- Mounting: Flush-mounted or detached HMI configuration
- Operating Temperature: -5°C to +55°C (23°F to 131°F)

ABB REF542plus 1VCR007346 G0012

ABB REF542plus 1VCR007346 G0012

ABB REF542plus 1VCR007346 G0012
Application Fields
- Substation Automation: Primary protection and control for feeder bays.
- Industrial Power Distribution: Managing power quality and load shedding in factories.
- Renewable Energy: Protecting grid connections for wind and solar farms.
- Marine Systems: Reliable electrical distribution and protection for shipboard grids.
Product Q&A
Q: What is the primary advantage of the REF542plus over standard relays? A: It integrates protection and PLC-like control logic in one device, allowing for complex interlocking and switchgear automation without extra hardware.
Q: Can the REF542plus handle both current and voltage sensors? A: Yes, it features universal analog inputs that can be configured for conventional instrument transformers or modern non-conventional sensors (Rogowski coils).
Q: Is the firmware upgradable for different communication protocols? A: Yes, the communication modules are modular, and the unit can be configured for various industry-standard protocols depending on the plug-in interface used.
