Description
Product Core Brief
- Model: REF542 PLUS
- Order Code: 1VCR007346 G0008
- Brand: ABB
- Series: REF542plus MV protection and control terminal family
- Core Function: Integrated protection, control, measurement, monitoring and communication for medium-voltage switchgear, feeders, motors and transformers.
- Product Type: MV feeder protection and control terminal / switchgear IED
- Key Specs: Overcurrent and earth-fault protection | Motor and transformer protection | Local HMI | Programmable logic | Communication interface
- Condition: New Original / New Surplus, depending on stock
Product Introduction
ABB REF542 PLUS 1VCR007346 G0008 is a medium-voltage protection and control terminal from the ABB REF542plus family. It integrates measurement, monitoring, protection, control and self-diagnosis in one compact unit, making it suitable for MV switchgear, distribution feeders, motor circuits and transformer bays.
The REF542plus family supports programmable protection and control schemes, local HMI operation, event recording, fault recording, power quality monitoring and communication with substation automation systems. It is designed for air-insulated and gas-insulated switchgear, and can be integrated into ABB or third-party automation systems depending on configuration.
The base order code 1VCR007346 identifies the REF542plus HMI/product family, while the suffix G0008 defines a specific variant. Public listings do not provide a complete breakdown of this exact suffix, so auxiliary voltage, I/O count, communication protocol and software version should be verified against the device nameplate.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Brand | ABB |
| Model | PLUS |
| Order Code | 1VCR007346 G0008 |
| Product Type | MV protection and control terminal |
| Typical Application | MV feeders, motors, transformers, switchgear bays |
| Protection Functions | Overcurrent, earth-fault, voltage, frequency, motor and transformer protection depending on configuration |
| Control Functions | Breaker control, interlocking, programmable logic, automation sequences |
| Measurement | Current, voltage, power, energy, frequency, power quality monitoring |
| HMI | Local graphical display with single-line diagram and text messages |
| Communication | Serial/Ethernet depending on configuration; Modbus, IEC 61850, DNP3 and other protocols available on selected variants |
| Condition | New Original / New Surplus |
Quality Control Process
- Full order code verification: Confirm REF542 PLUS and 1VCR007346 G0008 match the original nameplate.
- Visual inspection: Check HMI panel, main unit, terminal blocks, communication ports and signs of overheating.
- Nameplate confirmation: Verify auxiliary voltage, software version, I/O configuration and communication option.
- Secondary injection test: Confirm overcurrent, earth-fault, voltage and frequency protection settings.
- Communication test: Verify SCADA protocol, address mapping and remote readback.
- Packing: Anti-static bag, moisture barrier, rigid corner protection and reinforced carton.
Replacement Pitfall Guide
❗ Confirm the full order code. 1VCR007346 G0008 defines a specific variant; other REF542plus order codes may differ in HMI type, I/O, communication or software version.
❗ Do not assume identical function from model alone. REF542plus can be configured for feeder, motor, transformer or pure control applications; the protection set depends on the licensed software.
❗ Verify auxiliary voltage and I/O count. Mismatched power supply or binary I/O configuration can prevent correct installation.
❗ Check communication compatibility. Protocol, baud rate, address map and SCADA point list must match the existing system.
❗ Avoid blind replacement. MV protection terminals are safety-critical; replacement should follow site commissioning and testing procedures.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| ABB REF542 PLUS 1VCR007346 G0008 | ABB REF542 PLUS 1VCR007346 G0008 | Direct | Match full order code, firmware and configuration. |
| ABB REF542 PLUS 1VCR007346 G0008 | ABB REF542 PLUS other order code | Needs Verification | Same family but different HMI, I/O, communication or software. |
| ABB REF542 PLUS 1VCR007346 G0008 | ABB REF615 / REF620 / REF640 | Needs Verification | Newer feeder protection family; panel cutout, wiring and engineering may differ. |
| ABB REF542 PLUS 1VCR007346 G0008 | Generic MV protection relay | Needs Verification | Requires engineering review of I/O, protection logic and communication. |
Benchmarks:
- ABB REF542plus MV protection and control terminal family.
- Supports overcurrent, earth-fault, voltage, frequency, motor and transformer protection with local HMI, programmable logic and communication.
