The ABB XDD501A101 3BHE036342R0101 is a high-performance processor module designed for the UNITROL 5000 generator excitation system, serving as the core control unit responsible for executing complex excitation control algorithms, real-time data processing, and system coordination. Equipped with a 32-bit RISC processor (400 MHz clock speed), 128 MB DDR3 RAM, and 64 MB non-volatile flash memory, it delivers fast calculation capabilities to support advanced control functions such as automatic voltage regulation (AVR), power factor control (PFC), and field current regulation (FCR). Featuring dual redundant Masterbus 300 communication interfaces, it enables seamless integration with I/O modules, communication modules, and upper-level DCS/SCADA systems, ensuring reliable data exchange in mission-critical power generation applications. With 2500 V AC galvanic isolation between the processing core and external circuits, built-in fault detection, and self-diagnostic functions, it operates stably in harsh industrial environments with strong electromagnetic interference (EMI), wide temperature fluctuations (-25°C to +70°C), and high vibration levels. It is ideal for thermal power plants, hydropower stations, nuclear facilities, and renewable energy generation systems where precise and reliable excitation control is essential for generator stability, grid synchronization, and operational safety.

• Global Inventory: 121 shared inventories worldwide, enabling direct procurement from overseas warehouses for faster delivery.
• Pricing & After-Sales: Competitive prices plus reliable after-sales warranty services.
• Customer Coverage: Serving clients across United States, Germany, Japan, South Korea, United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium, Austria, and Turkey.
• Product Quality: All items are brand new and original. Spare parts include a 1-year warranty, and all products are tested and certified.
• Discounts: Contact us for bulk-order discounts. We also offer further price adjustments if you receive lower quotes for identical products from other suppliers.