Schneider Electric PN658729P3 P6581868G2 Circuit Board – Modicon Quantum DCS Control Module
When a critical circuit board fails inside a Modicon Quantum distributed control system, the consequences extend far beyond a single machine going offline. Production lines halt, process variables go unmonitored, and every minute of unplanned downtime translates directly into lost revenue and potential safety risks. In high-stakes industrial environments — from oil & gas refineries to water treatment facilities — the availability of an exact replacement board is not a convenience; it is an operational necessity. The Schneider Electric PN658729P3 P6581868G2 Circuit Board is precisely that replacement: a factory-specification component engineered to restore your system to full operation without compromise.
The PN658729P3 / P6581868G2 is a dual-reference control circuit board designed for use within the Schneider Electric Modicon Quantum platform — one of the most widely deployed DCS/PLC architectures in global heavy industry. As a core processing and signal-routing board within the Quantum backplane ecosystem, this module occupies a critical position in the control hierarchy, interfacing between I/O racks, communication buses, and the central CPU. Its global installed base across thousands of facilities in over 100 countries makes it one of the most sought-after spare parts in the industrial automation aftermarket.
Technical Specifications
- Manufacturer: Schneider Electric (formerly Modicon)
- Part Number (Primary): PN658729P3
- Part Number (Secondary / PCB Reference): P6581868G2
- Product Type: Circuit Board / Control Module
- Platform Compatibility: Modicon Quantum DCS / PLC Series
- Form Factor: Plug-in PCB assembly
- Weight: 4,460 g (as packaged)
- Condition Available: New surplus / Refurbished / Used tested
- Warranty: 12-month Konmask quality guarantee
Key Features & Benefits
- Dual Part-Number Traceability: Cross-referenced as both PN658729P3 and P6581868G2, ensuring accurate identification across Schneider’s global service documentation.
- Drop-In Replacement: Maintains full pin-compatibility and firmware handshake with existing Modicon Quantum backplane slots — no re-engineering required.
- Rigorous Pre-Shipment Testing: Every board undergoes functional bench testing and visual inspection before dispatch.
- Long-Term Availability: Sourced from certified channels and controlled inventory, supporting legacy system maintenance for years beyond OEM discontinuation.
- Reduced MTTR: Having this board on your critical spare parts list directly reduces Mean Time To Repair for Quantum-based control systems.
- Global Shipping Ready: Export-packed and ESD-protected for safe international transit.
Industry & Equipment Applications
- Oil & Gas: Upstream wellhead controllers, midstream pipeline SCADA, downstream refinery DCS
- Power Generation: Turbine control panels, substation automation, grid management systems
- Water & Wastewater: Pump station PLCs, treatment plant process control
- Chemical & Petrochemical: Batch process controllers, reactor management systems
- Mining & Metals: Conveyor control, smelter automation, ore processing PLCs
- Pulp & Paper / Food & Beverage: Line control boards within Quantum-based production systems
System Integration & Compatible Parts
The PN658729P3 P6581868G2 is designed to operate within the broader Modicon Quantum ecosystem. Compatible and commonly paired components include:
- Modicon Quantum CPU modules (e.g., 140CPU65150, 140CPU67160)
- Quantum I/O modules (analog, digital, high-speed counter)
- Quantum power supply modules (140CPS11420, 140CPS21400)
- Quantum backplane racks (140XBP01600, 140XBP01000)
- Unity Pro / Control Expert programming software
Contact our technical team to verify compatibility with your specific rack configuration and firmware revision before ordering.
Our Quality Assurance Process
- Source Verification: Parts are sourced exclusively from traceable, authorized channels — no grey-market or counterfeit risk.
- Visual Inspection: Each board is examined for physical damage, corrosion, burnt components, and solder integrity.
- Functional Bench Test: Where applicable, boards are powered up and tested against known-good reference systems.
- ESD-Safe Packaging: Anti-static bags, foam inserts, and rigid outer cartons protect boards during international shipping.
- Documentation: Test reports and traceability records available upon request for regulated industries.
How to Order
- Submit your RFQ via the “Get a Quote” button or email support@konmask.com.
- Include your required quantity, delivery timeline, and any specific condition requirements (new / refurbished / tested used).
- Our team will respond within 1 business day with availability, lead time, and pricing.
- Upon order confirmation, we arrange ESD-safe export packaging and dispatch with full tracking.
Why Choose Konmask.com?
- ✅ Specialist Focus: We exclusively serve industrial automation — Schneider, Siemens, ABB, Rockwell, GE, and more.
- ✅ Global Reach: Shipping to 80+ countries with experience in export documentation and customs compliance.
- ✅ Technical Support: Our engineers can assist with part identification, compatibility checks, and installation guidance.
- ✅ 12-Month Warranty: All parts carry our standard quality guarantee — we stand behind every shipment.
- ✅ Responsive Service: Dedicated account managers for B2B clients, with fast RFQ turnaround.
Frequently Asked Questions
- Q: Is PN658729P3 the same as P6581868G2?
- A: Yes. PN658729P3 is the Schneider Electric catalog/ordering part number, while P6581868G2 is the PCB assembly reference number printed on the board itself. Both refer to the same physical component.
- Q: What Modicon Quantum systems is this board compatible with?
- A: This board is designed for the Modicon Quantum platform. Please contact us with your rack model and slot configuration so our engineers can confirm compatibility for your specific installation.
- Q: Do you offer new or refurbished units?
- A: We stock both new surplus and professionally refurbished units. Condition and availability are confirmed at the time of your RFQ.
- Q: How long does shipping take?
- A: Standard international shipping is 5–10 business days. Express options (DHL, FedEx) are available for urgent requirements. Lead time depends on stock availability at time of order.
- Q: Can I get a test report or certificate of conformance?
- A: Yes. Test reports and CoC documentation are available upon request, particularly for clients in regulated industries such as oil & gas or nuclear power.
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