Product Overview

• Part No: AL129A
• Brand: ALSTOM / GE Vernova

• Category: Rack Power Supply ModuleAL129A is a rack‑mount plug‑in power supply module designed for ALSTOM ALSPA CE2000 control system. It converts AC mains input into multiple stable isolated DC output rails to feed CPU boards, I/O cards and communication modules inside the sub‑rack. Built‑in comprehensive hardware protection safeguards against input surges, output over‑voltage, over‑current, short‑circuit and over‑temperature faults. Front‑panel LED indicators display power health and fault status for quick on‑site diagnosis. Adopting industrial‑grade components and reinforced mechanical structure, it resists vibration, shock and heavy electromagnetic interference in power station cabinets. It is an obsolete original spare part widely used for overhaul and replacement of thermal power and combined‑cycle plant control racks.

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Core Features

• Multi‑channel isolated DC power output for CE2000 rack internal boards
• Full protection suite: over‑voltage, over‑current, short‑circuit and thermal shutdown protection
• Front‑panel LED status indication for power normal operation and fault alarm
• Standard plug‑in draw‑out construction supporting fast field replacement
• Robust mechanical design, anti‑vibration for cabinet installation
• Integrated EMI filter and surge suppression for harsh substation environments

• Passed EMC, vibration and wide‑range thermal cycling reliability qualification

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Technical Specifications

• Input: 96‑253 VAC
• Typical Output Power: 120 W
• Operating Temperature: -20°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Form Factor: Rack plug‑in power module

• Protection Class: IP20 when installed inside control cabinet

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Compatibility & Application

• Compatible with ALSTOM ALSPA CE2000 series control racks
• Applied in thermal power plants, combined‑cycle power stations and industrial captive power facilities
• Supplies stable working power for CPU, I/O and communication boards of turbine and boiler automation control systems