Description
Key Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | ALSTOM |
| Part Number | LE109A-1 |
| Product Type | Control / protection module (unconfirmed) |
| Typical Application | Power system control, substation, plant automation |
| Electrical Ratings | Verify from nameplate: supply voltage, I/O type, current rating |
| Communication Interface | Not confirmed; may include serial, bus, or Ethernet depending on variant |
| Compatible Systems | Must be matched to the installed ALSTOM protection or control platform |
| Condition | New surplus, refurbished, or removed-from-service — supplier must declare |
| Traceability | Serial number, revision, and test report recommended |
| Data Limitation | Public surplus pages do not confirm authoritative technical data; do not assume specs |
Product Introduction
ALSTOM legacy part numbers like LE109A-1 appear frequently in surplus listings, but the public descriptions are often generic. Some suppliers call it a control board, others a controller module, and some place it in power system or substation contexts. That inconsistency means the part number alone is not enough to approve a replacement.
For field use, LE109A-1 should be treated as a legacy ALSTOM module until the label, connector layout, and installed system are confirmed. It may belong to an older ALSTOM protection, bay control, or power system control platform. If you are replacing a failed card in a substation or plant control rack, verify the exact function, firmware or configuration data, and compatible ALSTOM system before installation.
QA/QC Transparency SOP
- Intake & Origin Verification — Photograph the full label, part number, revision, serial number, and connector side. Reject units with missing or altered labels.
- Visual Inspection — Check for burned components, swollen capacitors, cracked connectors, corrosion, moisture ingress, or mechanical damage.
- Electrical Testing — Measure supply voltage tolerance, I/O continuity, insulation resistance, and short-to-ground conditions.
- System Compatibility Check — Match the module to the installed ALSTOM rack, backplane, communication protocol, and configuration files.
- Final QC & Packaging — Tag with measured results, source condition, and revision. Pack with connector protection and ESD-safe materials.
Field Engineer Gotchas
- Surplus descriptions are unreliable. Many listings reuse generic text for ALSTOM modules. Do not trust “controller module” claims without a label photo.
- Do not assume interchangeability. Another ALSTOM LE-series or LC-series module may look similar but have different I/O mapping or firmware.
- Configuration data may be required. If this is a protection or bay control module, the replacement may need the correct parameter set, address, or communication settings.
- Connector and backplane compatibility matter. A module that physically seats may still cause faults if the pinout or firmware does not match the rack.
- Certification and application context are critical. If used in a substation or protection scheme, confirm whether the module supports the required safety function and system version.
ALSTOM LE109A-1
Application Scenarios
- Substation control panel maintenance. Replace a suspected faulty ALSTOM module after confirming the exact rack and configuration.
- Legacy power plant control system support. Use traceable ALSTOM spares to avoid mismatched I/O or communication faults.
- Industrial automation retrofits. Verify whether LE109A-1 can still be supported or whether a newer ALSTOM/GE platform replacement is required.
- Spare pool audit. Check existing LE109A-1 stock for revision, serial traceability, and compatibility with the installed system.
FAQ
Not confirmed from authoritative public sources. It is commonly listed as an ALSTOM control module, but the exact function must be verified from the label.
2. Can I substitute it with another ALSTOM LE-series part?
Not safely. ALSTOM legacy modules often differ in I/O mapping, firmware, and rack compatibility.
3. Is it still supported by ALSTOM or GE?
Public surplus listings exist, but official support status is not confirmed here. Check with ALSTOM/GE or an authorized service provider.
4. What information do I need before ordering?
A photo of the label, connector side, installed rack model, system software version, and the original BOM reference.
5. Is surplus stock acceptable for production use?
It can be, if the supplier provides clear photos, electrical verification, and return support. For protection or critical control functions, prefer tested or OEM-certified stock.
6. How do I confirm the exact function?
Match the physical module to the ALSTOM system manual, rack configuration, or engineering drawing. If the label is missing, do not install it in a live system.
