Description
ALSTOM NRD108033 / 8RDC44667G01 (SA44667.C) – Rack‑Mounted Control/Interface Module for Legacy Alstom Systems
The ALSTOM NRD108033 identified as 8RDC44667G01 with revision SA44667.C is a plug‑in, rack‑mounted module used in legacy Alstom industrial control architectures. From my experience, this type of board typically serves as an interface/conditioning or communications layer between the controller backplane and field I/O, helping keep installed plants running without a full system migration. You might notice that it follows the familiar Alstom plug‑in form factor, designed for fast replacement during outages and routine maintenance.
Users often adopt it as a like‑for‑like spare to restore a down I/O channel or to keep a redundant pair balanced by revision. One maintenance lead put it simply: “We swapped it in under an hour and had the controller back online before the shift change.”
Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery: 1 week when in stock; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express options: FedEx, UPS, DHL
- Testing & packing: function-tested prior to dispatch; ESD-safe and shock-protected packaging
Key Features
- OEM form factor: Plug‑in board engineered for Alstom racks, easing field replacement and minimizing wiring changes.
- Revision SA44667.C: Clear traceability for matching plant configuration and redundant pairs.
- Backplane powered: Draws power from the system backplane, so no extra field supply routing is needed.
- Service-friendly: Front access for insertion/removal; typically used with captive screws or a card handle for secure seating.
- Stable installed base: Helps extend life of legacy Alstom control cabinets where a full upgrade isn’t practical.
- Quality screened: Units are inspected and function-tested prior to shipment to reduce commissioning time.
Technical Specifications
| Brand / Model | ALSTOM NRD108033 / 8RDC44667G01, Rev. SA44667.C |
| HS Code | 853890 (Parts for switchgear/industrial control equipment) |
| Power Requirements | Powered via system backplane; typical logic rails in many Alstom racks (e.g., 5 VDC and auxiliary rails) supplied by the cabinet PSU |
| Dimensions & Weight | Plug‑in PCB module for rack installation; weight typically under 0.6 kg |
| Operating Temperature | 0 to 55 °C typical for cabinet-mounted control electronics |
| Signal I/O Types | Interfaces to controller via proprietary backplane; field I/O routed through the rack/terminal units (no direct field terminations on the module in most cases) |
| Communication Interfaces | Backplane bus to host controller; external comms handled by the system rack or CPU as configured |
| Installation Method | Rack-mounted plug‑in card; insertion via front panel with securing screws/handle |
Application Fields
This module is typically found in:
- Power generation plants (steam/gas turbine auxiliaries, balance‑of‑plant skids)
- Industrial process control cabinets with legacy Alstom control racks
- Utility and plant sub-systems where Alstom backplane-based I/O/communication modules are installed
Advantages & Value
- Reliability: Field-proven module format used across many Alstom cabinets; reduces risk during changeouts.
- Compatibility: Matched part number and revision (SA44667.C) to align with existing firmware and rack hardware.
- Cost savings: Extends life of legacy systems without immediate migration to a new platform.
- Technical support: Help with part identification, cross-revisions, and pre-shipment testing reports if needed.
Installation & Maintenance
- Cabinet environment: Install in a clean, ventilated control cabinet. Maintain ambient within 0–55 °C and avoid condensation.
- ESD handling: Use grounding straps and ESD-safe work practices; keep the module in its antistatic packaging until installation.
- Power-down: Unless the rack supports hot‑swap for this slot, power down and isolate the cabinet before removal/insertion.
- Seating & fastening: Slide the card along the guides until fully mated with the backplane; secure using front panel screws/handle.
- Revision matching: Match SA44667.C with the partner module/slot where required; verify firmware compatibility during commissioning.
- Routine care: Periodic dust removal with dry air, check connector wear, and keep firmware/config backups for disaster recovery.
Quality & Certifications
- Manufacturing and repair typically aligned with ISO 9001 quality processes
- CE conformity applies at the cabinet/system level; component-level marking varies by revision
- RoHS status may vary for legacy revisions; many earlier parts are non‑RoHS by design
- Warranty: 365 days from delivery
Supporting Components (Typical)
Commonly paired with the original Alstom rack backplane, system power supply, and field termination units in the same cabinet. If you’re planning a staged refresh, we can help check slot mapping, recommended spares, and compatible backplane power rails for this module family.
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