ALSTOM AB121 Module Card for Industrial Automation Control Systems
The ALSTOM AB121 Module Card serves as a critical voltage regulation component in industrial automation systems. Originally designed for French power generation infrastructure, this 220V module delivers 50kHz output frequency with exceptional stability, making it ideal for precision control applications in heavy industries.
| Specification | Details |
|---|---|
| Brand | ALSTOM |
| Model | AB121 |
| Origin | France |
| Operating Voltage | 220V AC |
| Output Frequency | 50 kHz |
| Certifications | CE, IEC 60553 |

We’ve seen this module excel in power plant turbine control systems and steel mill automation lines. Its rugged French engineering handles extreme temperature fluctuations better than similar Japanese-made modules. While originally designed for ALSTOM’s own systems, we’ve successfully integrated it with Siemens S7-400 and Schneider Quantum platforms through custom firmware patches.
Our inventory includes related components like the AB122 I/O interface card and AB125 power supply module. Customers often pair it with GE’s VMIVME-7807 processor boards for complete automation solutions. A recent client in Germany reported a 15% improvement in system uptime after upgrading their legacy AB120 modules to AB121 units.

Our Commitment to Quality
We guarantee 12 months of defect-free operation for every AB121 module we ship. Unlike typical refurbished parts resellers, we perform full functional testing including voltage stability tests at 50kHz load conditions. For urgent replacements, we maintain regional warehouses in Houston, Rotterdam, and Singapore with 48-hour shipping options.
Pricing Note: Factory-new AB121 modules typically cost €850-€1,100 in Europe. Our tested refurbished units offer 40-60% savings while maintaining full functionality. Contact us via WhatsApp +86 190-6659-1275 or email abboks36@gmail.com for current stock levels and competitive pricing.








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