ALSTOM LC105A-1 – Plug‑in Control Module for Industrial Protection & Automation Rack

The ALSTOM LC105A-1 is a rack‑mounted control module typically used in ALSTOM protection, substation automation, and rail traction control cabinets. From my experience, this model sits in the backplane as a logic or I/O processing card, bridging field signals with the system controller. It seems to be favored for retrofit and lifecycle extensions where you need a like‑for‑like replacement without reworking the entire cabinet.

Company’s Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery: 1 week for in‑stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express delivery options: FedEx, UPS, DHL

Key Features

• Rack‑mount plug‑in design – Slides into the ALSTOM backplane for quick swap and minimal downtime.
• Stable 24 VDC control power – Typically operates on standard 24 VDC used across control cabinets.
• Deterministic I/O handling – In many cases manages discrete and analog signals through the rack interface for protection or sequencing logic.
• Backplane communications – Communicates over the native ALSTOM rack bus; no extra wiring to the CPU in most cases.
• Serviceable in the field – One thing I appreciate is the straightforward replacement process; no cabinet redesign, just power down, pull, and reseat.
• Lifecycle continuity – Practical for fleets standardizing on ALSTOM hardware where software and wiring conventions are already validated.

Technical Specifications

Application Fields

You might notice this module most in legacy ALSTOM cabinets where reliability and continuity matter more than new features. Typical scenarios:

• Substation protection and automation racks (logic/I/O processing within ALSTOM relay systems)
• Rail traction and rolling stock control cabinets where standardized ALSTOM modules simplify maintenance
• Thermal and hydro plant auxiliary control panels using ALSTOM automation backplanes
• Refurbishment programs requiring direct replacement of ageing cards without PLC recoding

Advantages & Value

• Reliability – Proven design for cabinet environments; failures are rare when ventilation is adequate.
• Compatibility – Drop‑in fit with ALSTOM racks, so no rewiring or software requalification in most cases.
• Cost Savings – Avoids costly panel redesigns and downtime; swap can be done during a short planned outage.
• Technical Support – We assist with part identification by photo/serial; helps avoid ordering the wrong board revision.

Installation & Maintenance

• Cabinet requirements – Install in a clean, dry control cabinet (IP54 or better recommended); allow airflow and avoid mounting near heat sources.
• Wiring and ESD – Isolate 24 VDC supply before handling; use ESD protection; reseat firmly into the backplane connector without forcing.
• Ventilation – Keep filters clean; maintain cabinet temperature within the stated operating range for longest life.
• Routine checks – Visual inspection every 6–12 months; check connector pins for oxidation; clean dust with dry air; confirm firmware/logic version alignment if applicable.
• Spare strategy – From my experience, a 10–15% spare stock across critical racks reduces outage risk significantly.

Quality & Certifications

• Typically CE compliant for industrial control equipment
• RoHS alignment for repair/spare parts where applicable
• Manufacturer quality systems: ISO 9001 in most cases for production sites
• Warranty: 365 days replacement/repair coverage

Related Supporting Components

To streamline commissioning, teams often order complementary items together:

• ALSTOM rack backplane/chassis compatible with LC105A-1
• 24 VDC cabinet power supply module (industrial grade, low ripple)
• Rack retention screws and card guides for secure seating
• Service tools and documentation set (logic/firmware notes if applicable)

If you can share a photo of the nameplate or the cabinet code, we’ll verify the exact revision before shipment. It helps ensure the LC105A-1 you receive matches the existing backplane and logic expectations on site.