Product Overview

The ABB 5366168-A12​ (also cataloged as 5366168-A/12, drawing reference 5366168 Revision A, Sheet / Variant 12) is a proprietary Printed Wiring Assembly (PWA / PCB) manufactured by ABB for internal installation within ABB distributed control system (DCS) chassis, process controller racks, or large variable speed drive (VSD) power / control sections—most typically associated with Advant OCS, Symphony Plus Harmony nodes, AC800M/F controller expansions, or ACS800/ACS880 drive regulator electronics depending on the specific equipment vintage and option code. The ABB 5366168-A12​ is not a field-mount I/O module but an internal system circuit board that plugs into a motherboard or backplane via gold-finger edge connector(s), performing functions such as digital signal processing, bus interface bridging, analog signal conditioning, watchdog supervision, or regulator-stage control as defined by its ASIC/FPGA firmware and surrounding passive/active component population.In a DCS context the ABB 5366168-A12​ may serve as a communication-coprocessor interface, an I/O bus terminator/expander, or a specialized regulator/sequence board that interprets commands from the main CPU card (e.g., PM8xx in AC800M or 07KT97 with PPC907BE) and translates them to/from the I/O bus or drive power stage. In large ABB drive systems (ACS800/880 with RDCU / RDCO option control units or inverter sections) the ABB 5366168-A12​ can be the application-specific interface or feedback-processing board that connects the fiber-optic communication link from the AINT / AINP / AGPS board to the control CPU. Because the exact function varies by equipment family, correct identification by the complete ABB spare-part number—including the revision letter (A) and variant suffix (12 / A12)—is essential when ordering spares. The ABB 5366168-A12​ is a direct-fit replacement: it requires no on-board configuration, is recognized automatically by the host system firmware, and is typically hot-swappable only if the system architecture supports live board replacement with power applied (verify per your equipment manual—most DCS rack boards require rack power-down unless explicitly stated otherwise). For plants operating ABB control or drive equipment originally delivered with this PWA, the ABB 5366168-A12​ is a strategicallyHere are 10 SEO-optimized English titles for the ABB 5366168-A12​ (also referenced as 5366168-A/12):

• ABB 5366168-A12​ (5366168-A/12) DCS / Drive Control PCB – Spare Printed Circuit Board for ABB AC800, Advant & Drive System Rack Internal Assembly
• ABB 5366168-A12​ Industrial Control Printed Wiring Assembly (PWA) – CPU / I/O Processor Card for ABB 800xA / Advant / ACS / DCS Cabinet Spare Part
• ABB 5366168-A12​ (5366168-A/12) System Circuit Board – Proprietary Backplane-Connected PWA for ABB Process Controller or Variable Speed Drive Electronics
• ABB 5366168-A12​ Spare PCB Assembly – Authentic ABB Replacement Board for Internal Mount in 07KT / 07CR Rack, Drive Power Section or Operator Console
• ABB 5366168-A12​ (5366168-A/12) Control Electronics Card – 5 V / 24 V DC Powered, Edge-Connector Backplane Interface, FR4 Epoxy Glass, Conformal Coated
• ABB 5366168-A12​ Printed Circuit Board – MRO Spare for ABB Symphony Plus / Advant Node / ACS800/ACS880 Drive Control Electronics, Direct Fit Replacement
• ABB 5366168-A12​ (5366168-A/12) ABB Automation System Internal Board – Compatible w/ Select AC800M, Advant OCS & Large Drive Chassis, ESD-Sensitive Handling Required
• ABB 5366168-A12​ PWA – Replacement Circuit Card for ABB Process / Drive Equipment – Matches Original OEM Drawing 5366168 Rev A Sheet 12
• ABB 5366168-A12​ (5366168-A/12) Controller / Interface PCB – Installed Inside ABB Rack Chassis or Drive Power Unit, Connects via Gold-Finger Edge to System Backplane
• ABB 5366168-A12​ (5366168-A/12) Spare Printed Circuit Board Assembly – Critical MRO Item for ABB DCS & Drive System Internal Electronics Preservation & Repair

Below is the full product description per your requested format:

Product Overview

The ABB 5366168-A12​ (also cataloged as 5366168-A/12, drawing reference 5366168 Revision A, Sheet / Variant 12) is a proprietary Printed Wiring Assembly (PWA / PCB) manufactured by ABB for internal installation within ABB distributed control system (DCS) chassis, process controller racks, or large variable speed drive (VSD) power / control sections—most typically associated with Advant OCS, Symphony Plus Harmony nodes, AC800M/F controller expansions, or ACS800/ACS880 drive regulator electronics depending on the specific equipment vintage and option code. The ABB 5366168-A12​ is not a field-mount I/O module but an internal system circuit board that plugs into a motherboard or backplane via gold-finger edge connector(s), performing functions such as digital signal processing, bus interface bridging, analog signal conditioning, watchdog supervision, or regulator-stage control as defined by its ASIC/FPGA firmware and surrounding passive/active component population.In a DCS context the ABB 5366168-A12​ may serve as a communication-coprocessor interface, an I/O bus terminator/expander, or a specialized regulator/sequence board that interprets commands from the main CPU card (e.g., PM8xx in AC800M or 07KT97 with PPC907BE) and translates them to/from the I/O bus or drive power stage. In large ABB drive systems (ACS800/880 with RDCU / RDCO option control units or inverter sections) the ABB 5366168-A12​ can be the application-specific interface or feedback-processing board that connects the fiber-optic communication link from the AINT / AINP / AGPS board to the control CPU. Because the exact function varies by equipment family, correct identification by the complete ABB spare-part number—including the revision letter (A) and variant suffix (12 / A12)—is essential when ordering spares. The ABB 5366168-A12​ is a direct-fit replacement: it requires no on-board configuration, is recognized automatically by the host system firmware, and is typically hot-swappable only if the system architecture supports live board replacement with power applied (verify per your equipment manual—most DCS rack boards require rack power-down unless explicitly stated otherwise). For plants operating ABB control or drive equipment originally delivered with this PWA, the ABB 5366168-A12​ is a critical MRO spare whose availability directly determines whether a failed chassis