ABB 336A4976ATP051 – Rack Case | AC800M DCS Controller Platform
In a continuous process plant — whether a refinery, power station, or chemical facility — a single loose or unprotected controller module can cascade into unplanned downtime worth tens of thousands of dollars per hour. The structural integrity of the control cabinet is not a secondary concern; it is the first line of defense for every I/O card, processor module, and communication board inside. Without a properly rated rack case, vibration, EMI ingress, and thermal stress silently degrade module performance until a critical fault forces a shutdown.
The ABB 336A4976ATP051 Rack Case is a purpose-engineered enclosure component for the ABB AC800M Distributed Control System platform — one of the most widely deployed DCS architectures in global process industries. This rack case provides the mechanical backbone that houses and protects AC800M controller modules, ensuring correct module seating, grounding continuity, and airflow management across the full operating lifecycle of the control system.
Complete Technical Specifications
- Part Number: 336A4976ATP051
- Manufacturer: ABB Ltd.
- Product Family: AC800M DCS Platform
- Function: Rack Case / Controller Module Enclosure
- Weight: 4,840 g (approx. 4.84 kg)
- Compatibility: AC800M series controller and I/O modules
- Construction: Industrial-grade steel/aluminum alloy enclosure
- Mounting: Standard DIN rail / panel rack compatible
- Grounding: Integrated chassis ground points
- Cooling: Designed for forced-air or natural convection per AC800M system requirements
- Compliance: Designed to ABB AC800M system mechanical standards
Proven Application Environments
- Oil & Gas: Upstream wellhead control panels, downstream refinery DCS cabinets
- Power Generation: Turbine control rooms, boiler management systems
- Chemical & Petrochemical: Reactor control enclosures, batch process automation
- Pulp & Paper: Machine control systems, quality control automation
- Water & Wastewater: SCADA-integrated pump station control panels
- Mining & Minerals: Conveyor and crusher control cabinets
- Pharmaceuticals: GMP-compliant process control enclosures
Engineering Advantages
- OEM Precision Fit: Manufactured to ABB’s exact mechanical tolerances — no shimming, no improvised mounting, no risk of module misalignment
- EMI Shielding: Continuous metal enclosure provides Faraday cage effect, protecting sensitive controller electronics from radiated interference in industrial environments
- Thermal Management: Internal geometry engineered to match AC800M airflow patterns, preventing hot spots that degrade processor and I/O module MTBF
- Grounding Integrity: Chassis ground continuity ensures correct equipotential bonding across all installed modules — critical for signal accuracy and personnel safety
- Long Service Life: Heavy-gauge construction (4.84 kg) resists mechanical fatigue from vibration in pump rooms, compressor halls, and mobile plant
- Simplified Maintenance: OEM rack geometry allows technicians to swap modules without tools or alignment jigs, reducing MTTR during corrective maintenance
System Architecture & Signal Flow
Within the AC800M architecture, the rack case serves as the physical integration point for the PM8xx processor module, CI8xx communication interfaces, and SA8xx I/O modules. The backplane connector alignment within the 336A4976ATP051 ensures correct pin engagement for the high-speed internal bus that carries process data between the CPU and field I/O. Incorrect or damaged rack cases introduce intermittent bus errors that are notoriously difficult to diagnose — appearing as sporadic process alarms rather than hardware faults. Replacing a degraded rack case with a genuine ABB 336A4976ATP051 eliminates this failure mode at the root.
Compatible system components typically include: PM861, PM864, PM866 processor modules; CI854, CI857, CI858 communication interfaces; S800 I/O modules; and TB820 ModuleBus optical port modules. Always verify compatibility against your specific AC800M system revision and ABB project documentation.
Sourcing & Quality Verification
- Genuine ABB Part: Sourced through verified industrial automation supply channels — not refurbished, not counterfeit
- Pre-shipment Inspection: Each unit inspected for mechanical integrity — connector pins, chassis ground points, mounting hardware, and surface finish
- Secure Packaging: Anti-static and foam-padded packaging to prevent transit damage to precision connector interfaces
- Documentation: Part number label verified against ABB catalog reference prior to dispatch
- Traceability: Batch and sourcing records maintained for quality audit purposes
Procurement Process
- Submit Inquiry: Contact us via the form below or email support@konmask.com with your part number (336A4976ATP051) and required quantity
- Receive Quote: Our technical team will confirm availability, lead time, and pricing within 24 business hours
- Order Confirmation: Approve the proforma invoice and confirm shipping destination
- Dispatch & Tracking: Units shipped via DHL / FedEx / UPS with full tracking; export documentation provided for international orders
- After-Sales Support: Technical assistance available post-delivery for installation verification
Technical FAQ
Q: Is the 336A4976ATP051 compatible with all AC800M variants?
A: This rack case is designed for the AC800M platform. Compatibility depends on your specific system revision and cabinet configuration. Please share your system documentation when submitting an inquiry so our engineers can confirm fit.
Q: Can this rack case be used as a direct replacement for a damaged unit in an existing installation?
A: Yes. The 336A4976ATP051 is a direct OEM replacement part. Module re-installation follows standard ABB AC800M maintenance procedures without requiring system reconfiguration.
Q: What is the lead time for this part?
A: Lead time varies by stock availability. Contact us for a real-time availability check. We maintain relationships with multiple verified supply channels to minimize lead times for critical spares.
Q: Do you provide export documentation for international shipments?
A: Yes. We provide commercial invoice, packing list, and certificate of origin as standard. Additional documentation (e.g., MSDS, test reports) can be arranged upon request.
Q: Is the weight listed (4,840 g) the shipping weight or the net product weight?
A: The 4,840 g figure is the product weight as recorded in our system. Actual shipping weight will include packaging materials and will be confirmed on the proforma invoice.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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