Honeywell 2MLR-DBDH Redundant Expansion Driver – TDC 3000 Series
When a redundant expansion driver fails in a live DCS environment, the consequences are immediate and severe: loss of I/O communication, unplanned process shutdowns, and potentially millions of dollars in downtime. In petrochemical plants, power generation facilities, and continuous manufacturing lines, there is no acceptable margin for single-point failure in the control backbone. The Honeywell 2MLR-DBDH Redundant Expansion Driver is the critical link that keeps your TDC 3000 distributed control system running without interruption — providing the fault-tolerant expansion capability that mission-critical operations demand.
The 2MLR-DBDH occupies a specialized position within Honeywell’s TDC 3000 platform — one of the most widely deployed legacy DCS architectures in global heavy industry. As a redundant-rated expansion driver, it enables seamless I/O expansion while maintaining the system’s inherent fault tolerance. With Honeywell TDC 3000 systems still actively controlling processes in refineries, chemical plants, and utilities across Asia, the Middle East, and the Americas, genuine replacement modules like the 2MLR-DBDH remain in high demand and short supply on the open market.
Technical Specifications
- Part Number / SKU: 2MLR-DBDH
- Manufacturer: Honeywell Process Solutions
- Series: TDC 3000 / Distributed Control System (DCS)
- Module Type: Redundant Expansion Driver
- Configuration: Redundant (dual-path fault tolerance)
- Weight: 190 g
- Condition: New / Refurbished / Tested (specify on inquiry)
- Warranty: 12-month Konmask quality guarantee
Note: All specifications are based on Honeywell published documentation. Konmask does not fabricate or alter technical parameters. Contact us for the full datasheet.
Key Features & Benefits
- Redundant Architecture: Dual-path design ensures continuous operation even if one driver path fails — zero unplanned downtime.
- Seamless TDC 3000 Integration: Drop-in compatible with existing TDC 3000 cabinets and backplanes — no firmware reconfiguration required.
- Proven Industrial Reliability: Engineered to Honeywell’s stringent process control standards for 24/7 continuous operation in harsh environments.
- Extended System Life: Enables operators to extend the operational life of TDC 3000 infrastructure without costly full-system migrations.
- Tested Before Shipment: Every unit at Konmask undergoes functional verification prior to dispatch.
Industry & Equipment Applications
- Oil & Gas Refining — crude distillation, hydrocracking, and FCC unit control
- Petrochemical & Chemical Manufacturing — reactor and column automation
- Power Generation — boiler management and turbine control systems
- Pulp & Paper — continuous process line automation
- Pharmaceutical Manufacturing — batch process control with audit trail requirements
- Water & Wastewater Treatment — SCADA-integrated DCS environments
System Integration & Compatible Parts
The Honeywell 2MLR-DBDH is designed for use within the TDC 3000 DCS ecosystem. It is typically used alongside:
- Honeywell TDC 3000 Local Control Network (LCN) modules
- Honeywell High-Performance Process Manager (HPPM) cards
- Honeywell Universal Control Network (UCN) interface modules
- Honeywell AM/HPM I/O expansion assemblies
Need a compatible part? Contact our technical team at support@konmask.com — we maintain a broad inventory of TDC 3000 spare parts.
Our Quality Assurance Process
- Source Verification: All modules are sourced from authorized distributors, decommissioned plant inventories, or OEM-certified channels.
- Visual Inspection: Physical examination for damage, corrosion, and component integrity.
- Functional Testing: Bench-tested under simulated operating conditions using Honeywell-compatible test rigs.
- Cleaning & Packaging: Anti-static packaging with desiccant to prevent moisture damage during international shipping.
- Documentation: Test report and certificate of conformance available on request.
How to Order
- Submit your inquiry via the Contact / Quote Request form on this page.
- Include your required quantity, delivery timeline, and destination country.
- Our team will respond within 24 business hours with availability, lead time, and a formal quotation.
- Upon order confirmation, we arrange export documentation and international logistics.
📧 support@konmask.com | 📞 +0086 19859288691
Why Choose Konmask.com?
- 🔧 Industrial Automation Specialists: Focused exclusively on PLC, DCS, and industrial control components — not a generalist marketplace.
- 🌍 Global Export Experience: Shipping to 60+ countries with full export documentation, including commercial invoice, packing list, and COO.
- ✅ Quality-First Policy: Every unit tested. No untested stock shipped.
- ⚡ Fast Response: Dedicated B2B inquiry team — quote within 24 hours.
- 🔒 Secure Transactions: T/T, L/C, and other B2B payment terms accepted.
Frequently Asked Questions
Q: Is the Honeywell 2MLR-DBDH still in production?
A: The TDC 3000 platform is a mature legacy system. Honeywell no longer manufactures all TDC 3000 components as new production items. Konmask sources genuine surplus and refurbished units to support ongoing plant operations. Contact us for current stock status.
Q: Can the 2MLR-DBDH be used as a direct replacement in an existing TDC 3000 cabinet?
A: Yes. The 2MLR-DBDH is a form-fit-function replacement for compatible TDC 3000 expansion driver slots. No cabinet modification is required. We recommend verifying your cabinet revision with our technical team before ordering.
Q: Do you provide a warranty?
A: Yes. All units sold by Konmask carry a 12-month warranty covering functional defects. Units that fail under normal operating conditions within the warranty period will be replaced or refunded.
Q: What is the lead time for international orders?
A: In-stock units typically ship within 3–5 business days. Express DHL/FedEx options are available for urgent requirements. Lead time for sourced units varies — contact us for specifics.
Q: Can you provide a certificate of conformance or test report?
A: Yes. Documentation is available upon request for all tested units.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
