ABB REC650 1MRK008514 | Direct Replacement for 650 Series IED

• Model: REC650 1MRK008514
• Brand: ABB
• Series: Relion 650 Series
• Core Function: Bay control, protection and monitoring
• Type: Bay Control IED / Protection Relay
• Key Specs: IEC 61850-8-1; 100 Mbit/s Ethernet; 6U 1/2 × 19″ rack
• Condition: New Surplus, if supplied as unused original stock
• Ordering Note: 1MRK008514 is a base ordering reference; the complete configuration normally includes additional suffixes. ABB documentation gives examples such as REC650*1.1-A01X00-X00-B1A5-B-A-SA-AB1-RA3-AAAA-E.

Product Introduction

ABB REC650 1MRK008514 is a Relion 650 Series bay control IED for protection, control and monitoring of electrical bays. It is mainly intended for sub-transmission substations and supports single-breaker and busbar control applications.

For station communication, the REC650 supports IEC 61850-8-1 and TCP/IP-based communication, with Ethernet data rates up to 100 Mbit/s. The rack version is specified as 6U and 1/2 × 19″, making the exact mechanical configuration important when replacing an installed unit.

Key Technical Specifications

ABB REC650 1MRK008514

The electrical values above are taken from the REC650 Product Guide, product version 1.1. Exact I/O, communication and power-supply configuration depends on the complete ordering code.

Installation & Configuration Guide

Estimated replacement time: 30–60 minutes, excluding protection testing and system approval.

Stage 1 — Pre-Installation | About 10 minutes

1. Confirm the complete ordering code. Do not rely on “ 1MRK008514” alone. The suffix defines the application and hardware configuration.
2. Notify the control room and obtain an approved outage window.
3. Place the bay in a safe operating state.
4. Isolate the auxiliary supply according to the site’s switching procedure.
5. Wear an ESD wrist strap when handling the IED.
6. Export the existing configuration from PCM600 when available.
7. Photograph the existing terminals, communication ports and front-panel configuration.

Stage 2 — Remove the Existing IED | About 10 minutes

1. Verify that the IED is de-energized.
2. Label each connected cable before removal.
3. Record the existing terminal positions.
4. Disconnect the communication and signal wiring.
5. Release the mounting hardware.
6. Carefully remove the IED from the rack.
7. Inspect the connectors for bent pins, contamination or mechanical damage.

Do not assume that a visually similar configuration has identical I/O wiring. The Product Guide lists different configurations such as A01, A02 and A07, with different application arrangements.

Stage 3 — Install the Replacement | About 10 minutes

1. Compare the replacement unit’s full ordering code with the removed unit.
2. Check the power-supply type.
3. Check the transformer module and binary I/O configuration.
4. Confirm the communication module and optical interface.
5. Mount the IED in the rack.
6. Reconnect wiring according to the original connection diagram.
7. Check all terminal screws and protective bonding.
8. Reconnect the station communication network.

Stage 4 — Power-On and Testing | 10–30 minutes

1. Perform a final wiring inspection.
2. Apply the correct auxiliary voltage.
3. Check the local HMI and status indications.
4. Connect the engineering workstation.
5. Read the IED identification and firmware information.
6. Load the approved configuration through the applicable ABB engineering workflow.
7. Verify IEC 61850 communication and other configured protocols.
8. Test binary inputs and outputs.
9. Verify breaker and disconnector control.
10. Perform protection-function testing before returning the bay to service.

Important: Protection settings, interlocking and control logic should be checked against the approved project configuration. Do not copy settings blindly from another .

ABB REC650 1MRK008514

FAQ

1. Is ABB 1MRK008514 a PLC module?

No. It is a bay control IED from the Relion 650 Series. Its functions include bay control, protection, monitoring, measurement and disturbance recording.

2. Can I replace my existing directly?

Possibly, but the complete ordering code must match the installed application. ABB’s ordering system uses multiple configuration positions, including application configuration, casing, HMI and hardware options.

3. What communication does the support?

The documented platform supports IEC 61850-8-1, TCP/IP Ethernet communication and options such as IEC 60870-5-103 and DNP-related functions. IEC 61850 GOOSE is also supported for horizontal communication.

4. What is the operating temperature?

The documented continuous operating range is -25 to +55 °C. Short-time operation is specified from -40 to +70 °C for less than 16 hours. ABB notes that operation outside the continuous range can affect MTBF and HMI performance.

5. What power supply does the use?

It depends on the installed power-supply option. The product guide lists Type 1 supplies covering 100–240 V AC and 110–250 V DC, while Type 2 covers 48, 60, 110 and 125 V DC. Maximum auxiliary supply load is specified as 35 W.

6. Does 1MRK008514 identify the complete unit?

Not necessarily. This is the key purchasing point. ABB’s documentation shows that a complete order code contains multiple configuration sections. Confirm the full suffix before purchasing a replacement, especially the application, power supply, I/O and communication configuration.

7. What should be kept as buffer stock?

For a critical substation bay, one correctly configured spare IED can be justified as insurance stock. The spare should match the installed hardware and firmware requirements rather than simply being another unit from the family. This reduces the risk of a long outage caused by configuration mismatch.

Source note: The technical specifications above are based on the ABB Product Guide, product version 1.1, document 1MRK 511 249-BEN, issued February 2011. The uploaded content also requires uncertain parameters to be identified rather than invented.