OEM Service Stack with Flexi|X – board
Universal retrofit stack for RAC 3xx and ModSTACK™ systems
One solution for multiple converter platforms
The ConverterTec Service Stack with Flexi|X board is the next-generation retrofit solution for RAC 3xx and ModSTACK™ systems used in wind turbine converters. Designed to simplify service, reduce lifecycle costs, and boost performance, it gives operators a reliable and flexible path to modernize existing assets.
This “one-fits-all” concept eliminates unnecessary component removal and enables parallel operation of different stack technologies, all made possible by the Flexi|X master board.
The result: faster service, fewer parts to replace, and improved efficiency for years to come.
In a preventive manner you may proactively and economically upgrade your entire system with the full Service Stack upgrade kits, while securing the demounted old design functional units as spares for other non-upgraded converters.
Discover the latest generation of IGBT technology and more flexibility. Enjoy significantly improved performance and cost savings
Drawing on nearly three decades of converter design and field experience, ConverterTec’s Service Stack solution introduces the latest generation of IGBT and driver-board technology into proven converter platforms. With optimized cooling, enhanced diagnostics, and flexible configuration, it delivers measurable improvements in performance, reliability, and total cost of ownership.
This retrofit is more than an upgrade, it’s a future-proof investment for operators seeking higher availability and consistent long-term support.
Universal
retrofit solution
One flexible stack for RAC 3xx and ModSTACK™ systems, powered by the Flexi|X board for seamless compatibility.
Smarter
serviceability
Built-in LED diagnostics and modular design simplify troubleshooting, allowing single-stack replacement instead of full assembly change.
Lower
lifecycle costs
Fewer components to replace, shorter repair times, and durable film-capacitor design extend service life while reducing total cost of ownership.
Higher performance
& efficiency
Latest-generation IGBT and driver technology deliver improved cooling, greater stability, and up to 1%-pt higher efficiency.
Retrofit smarter. Operate longer. Discover flexibility that pays back.
The Service Stack with Flexi|X was engineered for both durability and simplicity. Built-in diagnostics, LED signal lights, and defined error codes help technicians identify issues instantly without additional tools. Sporadic errors are logged per IGBT, enabling accurate fault tracking and targeted repair.
Combined with the Flexi|X board, operators can replace a single IGBT stack instead of an entire assembly, cutting downtime and material costs. The optimized design with film capacitors and improved cooling extends lifetime and ensures stable operation even under demanding conditions.
With the ConverterTec Service Stack and Flexi|X, operators can replace only what’s necessary, keeping costs low and systems running longer. The modular design supports fast single-stack replacement, shorter repair times, and reduced risk of secondary failures.
It’s the perfect blend of modern IGBT performance, diagnostic intelligence, and lifecycle flexibility, all backed by ConverterTec’s long-term service and spare-part provision.
Ready to enhance your turbine performance and reliability?
Get in touch to learn more about our solutions.