ABB MAIN BOARD 5 FULL 1VCF751021801 Relay Control Module

The ABB MAIN BOARD 5 (FULL), product ID 1VCF751021801, provides a robust processing platform for modern protection and control relays used in demanding industrial and utility environments. Engineers rely on this full-feature mainboard because it ensures stable system operation while supporting advanced relay functions that require higher data throughput and reliable hardware performance. Moreover, its consistent architecture helps maintenance teams preserve long-term system integrity across large installed fleets.

Although ABB has introduced Mainboard 6 (1VCR014629801) as the next-generation replacement, the MAIN BOARD 5 (FULL) remains essential for users maintaining legacy equipment or operating mission-critical sites that require hardware continuity.

Main Features & Functional Highlights

• Supports full functionality within MB5-generation ABB relay platforms

• Designed for stable operation in harsh electrical and industrial conditions

• Provides reliable processing capability for advanced protection logic

• Ensures compatibility with dedicated top panels required for MB5 and MB6 generations

• Manufactured under strict industrial quality standards in Malaysia

Technical Specifications

General Information

• Product ID: 1VCF751021801

• Type Designation: MAIN BOARD 5 (FULL)

• Replacement Product: 1VCR014629801 (Mainboard 6)

• Part Type: New

• Quote Only: Yes

• Country of Origin: Malaysia

Weights & Packaging

• Net Weight: 0.3 kg

• Gross Weight: 0.3 kg

• MOQ: 1 piece

Upgrade & Compatibility Notes
When replacing MB5 with MB6, the top panel must also be replaced.
Approved top panel codes:
1VCF750153003, 1VCF750153001, 1VCF750153002
1VCF750099003, 1VCF750099001, 1VCF750099002
1VCF750165003, 1VCF750165001, 1VCF750165002
1VCF750099004, 1VCF750099005, 1VCF750099006
1VCF750153004, 1VCF750153005, 1VCF750153006

Additional Conditions

• Confirm required software version on the relay’s rating plate

• For DNV versions, order both the module and DNV coating (1MRS090010)

• WEEE Category: Product Not in WEEE Scope

Typical Applications

This full-feature mainboard is widely used in protection relays installed in transmission substations, industrial power systems, and marine infrastructures. In addition, many operators use it for lifecycle extension programs because it maintains consistent behavior with existing settings and logic structures. Therefore, the MAIN BOARD 5 (FULL) supports long-term reliability where stable relay performance is essential for critical power continuity.

Support & Maintenance

Routine inspections and correct software verification ensure optimal performance throughout the operating life of this mainboard. Moreover, ABB’s global service network supports replacements, upgrade planning, and technical documentation to help teams manage system transitions from MB5 to MB6 platforms.

FAQ

Q1: What is the difference between MAIN BOARD 5 (FULL) and the BASIC version?
The FULL version supports extended relay functions and higher processing capability compared with the BASIC version.

Q2: Can MB5 be replaced directly by MB6?
Yes, but the top panel must also be replaced using one of the approved codes.

Q3: How do I confirm software compatibility?
Check the rating plate located on the relay housing, which lists the required MB5 firmware version.

Q4: Is a DNV variant available?
Yes. Order the module together with the DNV coating using code 1MRS090010.

Q5: Is this module affected by WEEE requirements?
No. ABB classifies it as Product Not in WEEE Scope.