{"product_id":"abb-1vcf751021r802-main-board-5-basic","title":"ABB 1VCF751021R802 MAIN BOARD 5 (BASIC)","description":"\u003cp\u003eConfigured for core logic processing and control execution in ABB protection relay assemblies, the \u003cstrong\u003eABB 1VCF751021R802\u003c\/strong\u003e (\u003cstrong\u003e1VCF751021R802\u003c\/strong\u003e MAIN BOARD 5 (BASIC)) provides direct physical\/electrical execution. It coordinates internal data bus operations, executes protective algorithm routines, and interfaces directly with human-machine display panels and auxiliary input\/output hardware.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1VCF751021R802 (MAIN BOARD 5 BASIC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMalaysia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eMain Boards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e0.27 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard internal relay slot \/ rack mounting size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 to +55 deg C (standard enclosure ambient)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePowered via internal subrack auxiliary supply bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Part ID\u003c\/td\u003e\n\u003ctd\u003e1VCR014629802 (Main Board 6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating Option\u003c\/td\u003e\n\u003ctd\u003eDNV-coating applicable with code 1MRS090010\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Compliance\u003c\/td\u003e\n\u003ctd\u003eProduct Not in WEEE Scope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFirmware Flash Compatibility and Module Replacement Hardware Constraints\u003c\/h3\u003e\n\u003cp\u003eThe main board manages deterministic backplane communication velocity and internal bus routines across relay functional sub-assemblies. Operational execution relies on loading the exact software version indicated on the physical relay side rating plate. In hardware migration scenarios where Main Board 5 is replaced by Main Board 6 (1VCR014629802), hardware compatibility mandates simultaneous replacement of the enclosure top panel (compatible top panel part numbers include 1VCF750153001 through 1VCF750153006, 1VCF750099001 through 1VCF750099006, and 1VCF750165001 through 1VCF750165002). Marine or offshore installations require applying the optional DNV-coating treatment (1MRS090010) to preserve environmental resilience.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What hardware modifications are required when migrating from Main Board 5 (1VCF751021R802) to Main Board 6 (1VCR014629802)?\u003c\/p\u003e\n\u003cp\u003eA: Replacing Main Board 5 with Main Board 6 requires replacing the top panel assembly with a compatible top panel code (such as 1VCF750153001-006, 1VCF750099001-006, or 1VCF750165001-002) to maintain proper mechanical and physical alignment.\u003c\/p\u003e\n\u003cp\u003eQ: How is correct software compatibility verified prior to board installation?\u003c\/p\u003e\n\u003cp\u003eA: Software requirements must be cross-referenced directly against the software version printed on the rating plate located on the side frame of the relay enclosure.\u003c\/p\u003e\n\u003cp\u003eQ: How is the board prepared for DNV-certified marine environments?\u003c\/p\u003e\n\u003cp\u003eA: Marine DNV applications require ordering the supplementary DNV-coating process under part code 1MRS090010 alongside the main board hardware.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower Disconnection: Isolate all auxiliary supply power and current transformer secondary inputs before opening the relay chassis or handling the internal main board.\u003c\/li\u003e\n\u003cli\u003eAnti-Static Handling: Wear a properly grounded Electrostatic Discharge (ESD) wrist strap attached to unpainted panel metal when removing or inserting the printed circuit board assembly.\u003c\/li\u003e\n\u003cli\u003eMechanical Alignment: Align board edge card contacts accurately into the internal rack connectors. Tighten retaining screws to establish low-impedance ground paths across the mounting posts.\u003c\/li\u003e\n\u003cli\u003eShielding and Wiring Integrity: Verify that all internal ribbon and multi-pin connectors are fully seated and locked. Ensure cabinet signal cabling shields remain connected to the central station earth bus bar.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53256997536053,"sku":"1VCF751021R802","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1VCF751021R802.png?v=1786068244","url":"https:\/\/www.5gplc.com\/products\/abb-1vcf751021r802-main-board-5-basic","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}