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ALSTOM AL129A – Industrial Isolated Chopper Power Supply Module
Product Overview
The ALSTOMA AL129A is a dedicated chopper converter power module from Alstom Martek Power, matching CE2000 and ALSPA industrial control systems. It converts wide-range AC input into stable isolated 5VDC and 12VDC outputs, supplying power to controllers, sensors and I/O modules in power plants, industrial automation and energy transmission fields. This unit solves unstable system power issues and electrical interference risks in harsh industrial sites, ensuring continuous and reliable operation of core control equipment. ALSTOMA AL129A integrates comprehensive protection circuits and rack-mount structure, fitting standard Alstom control chassis perfectly.
Technical Specifications — AL129A
| Parameter | Value |
|---|---|
| Product Model | AL129A (CD101152 revision) |
| Manufacturer | ALSTOM (Alstom Martek Power, GE Power Conversion) |
| Product Type | Industrial Isolated Chopper Power Supply Module |
| Power | Input: 96–253VAC 50/60Hz; Output: 5VDC/10A, 12VDC/4A; Total Power: 120W |
| Communication / Protocol | None (independent power module) |
| Operating Temperature | -20°C to +60°C |
| Mounting | CE2000 Rack Mount (AM163/AM164/AM166 chassis) |
| Dimensions (HxWxD) | 180mm × 120mm × 45mm |
| Weight | 0.75kg |
| Typical Interfaces | AC power input terminal, isolated DC output terminals |
| Compliance | CE, UL Industrial Safety Standards |
ALSTOM AL129A
Key Features and Benefits — AL129A
- Wide AC input range: Adapts to global grid voltage fluctuations without additional transformers.
- Dual isolated DC outputs: Provides independent stable power for control logic and peripheral devices.
- Full protection design: Built-in overcurrent, overvoltage, overheating and short-circuit protection.
- High isolation performance: Effectively suppresses ground loop and electromagnetic interference.
- Modular rack installation: Directly compatible with Alstom CE2000 series control systems.
Related Models
- AL128A: Lower-power isolated power module for lightweight CE2000 system applications.
- AL130A: High-current upgraded version of AL129A with enhanced output capacity.
- CD101151: Earlier revision hardware matching AL129A electrical specifications.
- AM166: Dedicated mounting chassis for AL129A and other Alstom power modules.
Installation and Maintenance — AL129A
- Install AL129A into designated slots of AM163/AM164/AM166 CE2000 racks, confirm correct polarity of input and output wiring.
- Ensure system grounding is complete before power-on to avoid electrostatic and interference damage.
- Monthly inspection: Check terminal tightness, LED status indicators and surface temperature.
- Quarterly maintenance: Clean dust on module surface and ventilation channels.
- Avoid overload operation exceeding rated output current; refer to official manual for firmware and circuit diagnosis.
