⚙️ Product Introduction
The ALSTOM AL129A is an industrial power supply and conversion module used in ALSTOM CE2000 and CE3000 controller systems. Although some marketplace listings describe it as a CPU motherboard, available technical references identify the AL129A mainly as a MARTEK power conversion module / controller system power supply unit.
The module converts wide-range AC input power into regulated isolated DC outputs required by ALSTOM control racks, controller CPUs, and I/O modules. It is designed for reliable operation in industrial automation, power control, and process monitoring systems.
🔧 Key Features
• ALSTOM industrial controller power module
• Compatible with CE2000 / CE3000 control systems
• Wide-range AC input capability
• Isolated DC output power supply
• Supports single or redundant power configurations
• Designed for industrial rack installation
• Provides stable power for CPU and I/O modules
• High reliability for continuous operation
• Modular replacement design
📋 Product Datasheet
• Brand: ALSTOM
• Model: AL129A
• Part Number: CD101152 / U0100050*
• Product Type: Industrial Power Supply / Chopper Converter Module
• System Compatibility: ALSTOM CE2000 / CE3000 Controller Systems
• Input Voltage: 96–253 VAC
• Output Voltage: 5 VDC and 12 VDC isolated outputs
• Output Capacity: 5 VDC up to 10 A / 12 VDC up to 4 A
• Rated Power: Approx. 120 W
• Switching Frequency: Approx. 60 kHz
• Protection Function: Overcurrent, overvoltage, thermal protection
• Mounting: ALSTOM controller rack / FB178 backplane
• Power Consumption: System dependent
• Dimensions: Approx. 265 × 50 × 265 mm
• Weight: Approx. 2.02 kg
• Operating Temperature: Approx. -20 to +60 °C
• Communication Interface: Backplane communication
• Country of Origin: France / production version dependent
• Application: Industrial Automation Power Control
🏭 Typical Applications
The AL129A is used in ALSTOM industrial control platforms where reliable DC power conversion is required.
Typical applications include:
• Power plant automation systems
• Industrial process control
• Turbine and generator control systems
• Railway power management systems
• SCADA and supervisory control equipment
• Legacy ALSTOM automation installations
⚡ Functional Description
The AL129A receives AC input power and converts it into regulated DC voltage rails used by control system electronics. The isolated 5 VDC and 12 VDC outputs provide power for controller modules, communication units, and I/O assemblies inside ALSTOM racks.
The module can operate in single or redundant configurations depending on the rack design, improving system availability for critical industrial applications.
🔌 System Integration
Basic installation steps:
• Install the AL129A into the designated ALSTOM rack position
• Connect AC input wiring according to system drawings
• Verify output voltage levels before connecting loads
• Check backplane connection with controller modules
• Confirm power status indicators
• Test controller startup sequence
🛠️ Installation Notes
Before replacement, verify:
• Complete model number AL129A
• Compatible CE2000/CE3000 rack system
• Input voltage range
• Output voltage requirements
• Hardware revision
• Existing power redundancy configuration
Installation procedure:
• Switch off and isolate system power
• Remove the existing power module carefully
• Install the replacement unit
• Check rack connection and mechanical locking
• Restore power and monitor system diagnostics
After startup:
• Verify 5 VDC and 12 VDC outputs
• Check controller module startup
• Confirm I/O module operation
• Review system alarms
• Verify stable operation under load
📦 Ordering Information
The correct identification is:
ALSTOM AL129A Industrial Power Supply Module
Available references identify AL129A as an ALSTOM controller power conversion module used with CE2000/CE3000 systems. Some marketplace titles describe it as a CPU motherboard, but technical records classify it primarily as a power supply/chopper converter module.
Please confirm the exact label, part number, rack type, and hardware revision before ordering to ensure compatibility.
*Specifications marked with an asterisk are reference values and should be verified against the exact hardware revision before engineering use.
