ABB's Conceptpower DPA 500 UPS is a high power, modular and transformerless UPS system. Ideal for organizations that want zero downtime. The UPS is built using true online double conversion technology and has a very low cost of ownership. Now you can have a UPS capacity to fit your needs perfectly: The Conceptpower DPA 500 is the only modular UPS on the market that can be expanded to deliver 3 MW of clean, reliable power.