ABB ACS580-01-361A-4+B056J429Product Description Drive, AC, 250HP, 480V, 302A, CT, N12 This ABB ACS580 01 361A 4+B056J429 is an efficient, ultra modern variable frequency drive made for high performance applications. It offers many user friendly features, such as a modular design, large display and advanced control options. You can reduce energy costs with the built in energy saving measurements and protect motors from damage with the safe torque off feature.