Description
Product Core Brief
- Model: REC670
- Brand: ABB / Hitachi Energy
- Series: Relion 670 series — bay control IED
- Core Function: Controls, monitors, and protects switchgear apparatus in single, double, and multi-breaker bay arrangements, with optional backup protection functions.
- Product Type: Bay control IED / substation control and protection relay
- Key Specs: Select-before-operate control | GOOSE-based interlocking | IEC 61850 Ed.2 support | Synchrocheck | Local HMI
- Condition: New Original / New Surplus, depending on stock

Product Introduction
ABB REC670 1MRK002814-AC is a high-performance bay control IED from the Relion 670 series. It is designed for transmission, sub-transmission, and industrial substations where reliable apparatus control, interlocking, measurement, and optional backup protection are required.
The REC670 supports control of breakers, disconnectors, and earthing switches based on the select-before-operate principle. It provides advanced interlocking, including GOOSE-based bay and station-wide interlocking, and can display status, alarms, measurements, and single-line diagrams on its local HMI. Depending on configuration, it may also include synchrocheck, auto-reclose, breaker-failure backup, overcurrent, voltage, and frequency protection functions.
The order code 1MRK002814-AC identifies a specific REC670 hardware/configuration variant within the Relion 670 family. The exact I/O, communication options, and application functions should be confirmed against the device nameplate and order documentation.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Brand | ABB / Hitachi Energy |
| Model | |
| Order Code | 1MRK002814-AC |
| Product Type | Bay control IED |
| Typical Application | Transmission, sub-transmission, and industrial substations |
| Control Function | Breaker, disconnector, and earthing switch control |
| Interlocking | GOOSE-based bay/station interlocking |
| Communication | IEC 61850 MMS/GOOSE; dual Ethernet with PRP/HSR commonly available |
| Auxiliary Power | Typically 85–265 V AC or 85–300 V DC, depending on power module |
| System Compatibility | Relion 670 series protection and control ecosystem |
| Condition | New Original / New Surplus |
Quality Control Process
- Order code verification: Confirm REC670 and 1MRK002814-AC match the original nameplate exactly.
- Visual inspection: Check front HMI, terminal blocks, Ethernet/serial ports, mounting hardware, and signs of overheating.
- Firmware and configuration check: Verify application package, control logic, interlocking settings, and firmware version.
- Control loop test: Confirm select-before-operate, position indication, trip/close outputs, and synchrocheck if applicable.
- Communication test: Verify IEC 61850/SCADA integration, GOOSE signals, time synchronization, and redundant Ethernet if configured.
- Packing: Anti-static protection, moisture barrier, rigid corner protection, and shock-absorbing outer carton.
Replacement Pitfall Guide
❗ Confirm the full order code. 1MRK002814-AC defines the hardware/configuration variant; other REC670 order codes may differ in I/O, firmware, communication options, or application package.
❗ Do not treat it as a generic PLC controller. REC670 is a substation bay control IED, not a general-purpose PLC or DCS controller.
❗ Verify the application package. REC670 can be configured for feeder, transformer, bus-tie, coupler, or multi-breaker bays; wrong logic or interlocking settings may cause unsafe operation.
❗ Check GOOSE and IEC 61850 configuration. Interlocking, status exchange, and remote control depend on correct SCL/ICD files, IP addressing, and network settings.
❗ Confirm firmware compatibility. Relion 670 series firmware versions affect feature sets and cybersecurity posture; replacement units should match site requirements.
❗ Avoid blind replacement. Bay control IEDs are safety-critical; replacement should follow OEM procedures and site commissioning requirements.
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 REC670 1MRK002814-AC | ABB REC670 1MRK002814-AC | Direct | Match full order code, firmware, and configuration. |
| ABB REC670 1MRK002814-AC | ABB REC670 other order code | Needs Verification | Same family but different I/O, firmware, or application package. |
| ABB REC670 1MRK002814-AC | ABB REC650 bay control IED | Needs Verification | Different series; confirm I/O, communication, and engineering tool compatibility. |
| ABB REC670 1MRK002814-AC | Generic PLC/controller module | Not Compatible | REC670 is a substation bay control IED, not a general-purpose PLC. |
Benchmarks:
- Relion 670-series bay control IED for transmission and industrial substations.
- Supports select-before-operate control, GOOSE-based interlocking, IEC 61850 communication, synchrocheck, and local HMI monitoring.



