HONEYWELL K2LCN-4 51402615-400 Local Control Network Board – TDC 3000 LCN Series
When a critical Local Control Network (LCN) communication board fails inside a Honeywell TDC 3000 distributed control system, the consequences are immediate and severe: process data stops flowing between nodes, operator visibility is lost, and in the worst cases, an entire production unit must be taken offline. In refinery columns, chemical reactors, and power generation facilities, every hour of unplanned downtime can cost tens of thousands of dollars. The HONEYWELL K2LCN-4 (Part No. 51402615-400) PC Board is the exact replacement component that restores LCN communication integrity and brings your process back under control.
The K2LCN-4 is a core LCN interface board within Honeywell’s legendary TDC 3000 platform — one of the most widely deployed distributed control systems in the global process industries. Introduced as part of the LCN (Local Control Network) architecture, this board handles high-speed peer-to-peer communication between Universal Stations, Application Modules, and other LCN-connected nodes. Despite the TDC 3000 platform’s maturity, it remains operational in thousands of facilities worldwide, making genuine, tested spare boards like the K2LCN-4 an essential asset for any maintenance and reliability program.
Technical Specifications
- Manufacturer: Honeywell Process Solutions
- Part Number: K2LCN-4
- Reference / Rev: 51402615-400
- Product Type: PC Board / LCN Communication Card
- Compatible Platform: Honeywell TDC 3000 DCS
- Network: Local Control Network (LCN)
- Form Factor: Plug-in PCB module
- Weight: Approx. 700 g (with packaging)
- Condition Available: Refurbished / Tested / New Surplus
Note: Konmask.com does not fabricate or alter specifications. All technical data is sourced from Honeywell documentation and physical inspection. Contact us for a detailed datasheet.
Key Features & Benefits
- Direct Drop-In Replacement: Designed to slot directly into TDC 3000 LCN cabinets without hardware modification, minimizing installation time during critical maintenance windows.
- LCN Communication Integrity: Restores high-speed, deterministic peer-to-peer data exchange across the Local Control Network, re-establishing full operator visibility and control.
- Proven Platform Reliability: The TDC 3000 LCN architecture is engineered for 24/7 continuous operation in harsh industrial environments — this board is built to the same standard.
- Tested Before Shipment: Every K2LCN-4 board sourced through Konmask.com undergoes functional verification prior to dispatch.
- Long-Term Availability: As OEM production of legacy TDC 3000 parts winds down, Konmask.com maintains stock of hard-to-find boards to support your extended asset life strategy.
- Global Export Ready: Properly packaged for international air and sea freight with ESD-safe materials.
Industry & Equipment Applications
- Oil & Gas: Refinery distillation columns, crude unit DCS nodes, compressor control systems
- Petrochemical & Chemical: Reactor management, batch process control, safety instrumented system interfaces
- Power Generation: Boiler management systems, turbine control DCS nodes
- Pulp & Paper: Continuous digester control, recovery boiler automation
- Pharmaceuticals: Validated batch manufacturing environments running legacy DCS
- Water & Wastewater: Large-scale treatment plant SCADA/DCS hybrid architectures
System Integration & Compatible Parts
The K2LCN-4 operates within the broader Honeywell TDC 3000 ecosystem. Compatible and commonly co-ordered components include:
- Honeywell LCN Cable Assemblies and Tap Units
- Universal Station (US) and Enhanced Universal Station (EUS) modules
- Application Module (AM) and History Module (HM) boards
- Honeywell Power Supply units for LCN cabinets
- Other K2LCN series variants (K2LCN-1, K2LCN-2, K2LCN-3)
Contact our technical team to verify cross-compatibility with your specific cabinet revision and firmware version before ordering.
Our Quality Assurance Process
At Konmask.com, every industrial automation component passes through a structured quality workflow before it reaches you:
- Step 1 – Source Verification: Parts are sourced from documented, traceable channels including decommissioned plant assets and authorized surplus dealers.
- Step 2 – Visual Inspection: Each board is inspected for physical damage, corrosion, burnt components, and counterfeit indicators.
- Step 3 – Functional Testing: Where test fixtures are available, boards are powered and tested for core functionality.
- Step 4 – ESD-Safe Packaging: Boards are packed in anti-static bags, foam-lined boxes, and labeled with part number and inspection date.
- Step 5 – Documentation: A packing list and inspection record accompany every shipment.
How to Order
- Submit an Inquiry: Use the contact form on this page or email support@konmask.com with your part number and required quantity.
- Receive a Quote: Our team will confirm stock availability, condition, lead time, and pricing within 1 business day.
- Confirm & Pay: We accept T/T (bank transfer), PayPal, and other B2B payment methods. A proforma invoice will be issued.
- Shipment & Tracking: Parts are dispatched via DHL, FedEx, or UPS with full tracking. Export documentation provided upon request.
- After-Sales Support: Our engineers are available post-delivery to assist with installation questions.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on DCS, PLC, and process control components — not general electronics.
- Hard-to-Find Parts: We stock legacy and obsolete modules that OEMs no longer supply, keeping your plant running longer.
- Technical Expertise: Our team includes engineers with hands-on DCS experience, not just sales staff.
- Global B2B Service: We serve maintenance teams, EPCs, and MRO procurement departments across Asia, the Middle East, Europe, and the Americas.
- Transparent Communication: No hidden fees. Clear lead times. Honest condition grading.
- Fast Response: Inquiries answered within 24 hours on business days.
Frequently Asked Questions
Q: Is the K2LCN-4 the same as 51402615-400?
A: Yes. K2LCN-4 is the Honeywell model designation, and 51402615-400 is the full part number including revision. Both refer to the same board.
Q: What condition is this board in?
A: We carry refurbished/tested and new surplus units depending on current stock. Please contact us to confirm the condition of available inventory at the time of your inquiry.
Q: Can this board be used in a TDC 3000 system with a different LCN revision?
A: Compatibility can depend on cabinet revision and LCN software version. We strongly recommend sharing your system configuration details so our engineers can confirm compatibility before you order.
Q: Do you provide a warranty?
A: Yes. We offer a standard 90-day warranty against DOA (dead on arrival) and functional defects. Terms are outlined in our sales agreement.
Q: How long does shipping take?
A: Express courier (DHL/FedEx) typically delivers within 3–7 business days internationally. Lead time depends on stock availability confirmed at the time of order.
Q: Can you provide export documentation?
A: Yes. We provide commercial invoices, packing lists, and certificates of origin as required. Please specify your import country requirements at the time of order.
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