Overview：
ABB REF542plus 1VCR007346
Multifunction Protection and Switchbay Control Unit
ABB REF542plus(1VCR007346) is an upgraded version of the REF542 multifunctional protection and switchgear bay control unit. In a programmable environment, the device provides functions such as protection, measurement, control, monitoring, and power quality analysis, and is suitable for medium-voltage (MV) switchgear bay applications.The unit features a modular architecture and task-separated processors, supports configuration and integration into substation automation systems, and is a certified product compliant with the ABB IndustrialIT architecture.
Function & Features：
- Task Separation: The ABB REF542plus (1VCR007346) features a Digital Signal Processor (DSP) responsible for measurement and protection, a Microcontroller (MC) for control functions, and a Communication Processor (CP) for interfacing with the station-level automation system. Modifying the control scheme does not impact the protection startup and tripping functions.
- Dual-Unit Structure: The ABB REF542plus (1VCR007346) consists of a central unit, which integrates the power supply, processor, analog/binary I/O, and optional expansion modules, along with an independent Human-Machine Interface (HMI) control unit. The HMI has its own power supply and can be installed on the low-voltage compartment door or near the central unit.
- Hardware Configuration: The ABB REF542plus (1VCR007346) includes a backlit LCD screen, 8 push buttons, multiple indicator lights, and an electronic key interface. The left half of the LCD displays the primary wiring diagram, while the right half shows the menu/submenu. The device also supports multi-language switching.
Specifications：
| Parameter | Details |
|---|---|
| Product Model | REF542plus |
| Part Number | 1VCR007346 |
| Binary Inputs | 14 channels |
| Binary Outputs | 6 power outputs + 2 signal outputs + 1 watchdog output |
| Optional Analog Outputs | 4 channels |
| Operating Components | 8 function buttons |
| Programmable LED Bars | 3 bars; each consists of 10 green LEDs + 2 red LEDs |
| Dimension | 120.2mm*124.64mm*49.85mm |
Questions & Answers
💡 FAQ
Q: How to Program and Configure the ABB REF542plus:
A:
- Tools: ABB-specific configuration software (such as CAP 505 / CAP 516) needs to be installed on a Windows computer.
- Connection: Connect the computer to the HMI's optical interface using a serial/USB-to-fiber optic adapter.
- Process: In the software, draw the single-line diagram, configure I/O points, set protection functions, write control logic, then compile and download the configuration to the device.
Q: Is technical support available?
A: Yes, we have a professional technical team to address technical issues.
Q: What is the warranty?
A: 1 year
Q: What is the return and exchange policy?
A: Returns or exchanges are accepted within 7 days of receiving the goods if there are any quality issues, excluding damage caused by human error or misuse.
Q:What are the available shipping methods?
A: FedEx, DHL, UPS, and others.
Contact us
Our address
Room 1904, Building B, Diamond Coast, No. 96 Lujiang Road, Siming District, Xiamen, Fujian, China
Phone Number
+86 18059276824
sales7@nseauto.com
why choose us?
We specialize in providing industrial automation and control solutions, including ABB, GE, Bently Nevada, and other critical DCS/PLC components. Here's why customers trust us for their industrial automation needs:
one-stop solution
professional team
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After-sales service
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