Honeywell 2MLR-AC23 – Redundant AC Power Supply Module | TDC 3000 Platform
Engineering Background: The Honeywell TDC 3000 (Total Distributed Control) platform has been the backbone of process automation in petrochemical, refining, and power generation facilities for decades. Reliable, uninterrupted power delivery is the foundation of any high-availability control architecture — and the 2MLR-AC23 was engineered precisely for that mission.
Product Positioning: The 2MLR-AC23 is a field-proven AC input power supply module designed for use within Honeywell TDC 3000 Local Control Network (LCN) and High-Performance Process Manager (HPM) cabinets. It converts AC mains power to regulated DC bus voltages required by TDC 3000 I/O and controller cards, supporting redundant power configurations to eliminate single points of failure in critical process environments.
Complete Technical Specifications
- Part Number: 2MLR-AC23
- Manufacturer: Honeywell Process Solutions
- Platform: TDC 3000 / LCN / HPM
- Module Type: AC Input Power Supply Module
- Input Voltage: AC mains (nominal 120/240 VAC, refer to nameplate)
- Output: Regulated DC bus voltages for TDC 3000 backplane
- Redundancy: Supports N+1 redundant power supply configurations
- Form Factor: Standard TDC 3000 card cage module
- Weight: Approx. 500 g
- Compliance: Designed to Honeywell TDC 3000 system specifications
Proven Application Environments
- Petroleum refining and upstream oil & gas production facilities
- Petrochemical and specialty chemical plants
- Power generation (thermal, nuclear, combined-cycle)
- Pulp & paper and continuous process manufacturing
- Pharmaceutical batch and continuous processing
- Any facility operating Honeywell TDC 3000 LCN or HPM cabinets requiring sustained power integrity
Engineering Advantages
- High-Availability Architecture: Supports hot-standby redundant power configurations — no process interruption during module swap.
- Platform Compatibility: Direct drop-in replacement for existing TDC 3000 power supply slots; no firmware or configuration changes required.
- Regulated Output: Maintains stable DC bus voltage under varying load conditions, protecting sensitive I/O and controller cards.
- Proven Field Reliability: Thousands of units deployed globally across mission-critical process industries over multiple decades.
- Genuine OEM Hardware: Sourced from decommissioned or surplus plant inventories; not counterfeit or third-party clone hardware.
System Architecture & Signal Flow
Within a TDC 3000 cabinet, the 2MLR-AC23 occupies a dedicated power supply slot in the card cage. AC mains input is converted and regulated to the DC bus voltages distributed across the backplane. In a redundant configuration, two 2MLR-AC23 modules operate in parallel load-sharing mode; if one module fails or is removed for maintenance, the second assumes full load without interruption. The module interfaces directly with the TDC 3000 backplane — no external wiring to I/O cards is required beyond the AC input connection.
Sourcing & Quality Verification
- All units sourced from documented surplus or decommissioned industrial inventories
- Visual inspection: enclosure integrity, connector condition, label legibility
- Functional bench test available upon request prior to shipment
- Original Honeywell part number and revision markings verified
- No remanufactured, relabeled, or counterfeit components supplied
- Certificate of conformance and test report available for qualified buyers
Procurement Process
- Submit RFQ: Contact support@konmask.com or call +0086 19859288691 with your required quantity and delivery timeline.
- Quotation: We respond within 1 business day with pricing, lead time, and available stock confirmation.
- Order Confirmation: Purchase order accepted via email; proforma invoice issued for payment processing.
- Quality Check & Packing: Each unit inspected and packed in anti-static, foam-lined packaging for safe international transit.
- Shipment: DHL / FedEx / UPS express available; EXW, FOB Xiamen terms supported.
- Documentation: Commercial invoice, packing list, and CoC provided with every shipment.
Technical FAQ
Q: Is the 2MLR-AC23 compatible with both 120 VAC and 240 VAC input?
A: Input voltage range is specified on the module nameplate. Please confirm your site mains voltage before ordering; we can advise on compatibility.
Q: Can this module be hot-swapped while the TDC 3000 system is running?
A: In a properly configured redundant power supply arrangement, yes — the standby module maintains power to the backplane during the swap. Single-supply configurations require a controlled shutdown.
Q: Do you provide a warranty?
A: Yes. All units carry a 90-day functional warranty from date of shipment. Extended warranty terms available upon request.
Q: Can you supply multiple units for a plant-wide spares program?
A: Yes. We maintain network access to global surplus inventories and can fulfill multi-unit orders. Contact us for volume pricing.
Q: What is the lead time?
A: In-stock units ship within 3–5 business days. For sourced units, typical lead time is 2–4 weeks depending on global availability.
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Contact: support@konmask.com | +0086 19859288691
