In case of discrepancies between the product model and displayed images, the model number shall prevail. For specific product photos, kindly reach out to us, and we will arrange for photographs to be taken at our warehouse for confirmation.
With 14 shared warehouses worldwide, we kindly ask for your understanding that accurate responses may occasionally take several hours. Rest assured, we will address your inquiries as promptly as possible."

"Please contact us for the best price. Email: [mailto:ZHDJIANGJIANG1@gmail.com]

Stop Production Downtime!
As factories worldwide phase out Advant OCS systems, the AU835A module becomes critical for uninterrupted operation. This genuine ABB component delivers:

✓ Instant Processor Backup
Seamless failover during main CPU faults

✓ Plug-in Legacy Support
Direct compatibility with Advant OCS racks (no reengineering)

✓ Global Certification
ATEX/IECEx for hazardous areas • CE/UL listed

✓ Same-Day Global Shipping
From Houston, Rotterdam & Singapore hubs

*"Maintain 20+ year-old control systems without costly upgrades. 100% ABD-certified replacements available."*

Ideal For:
⚡ Power generation backup systems
⚡ Petrochemical plant control racks
⚡ Paper mill automation retrofits