ABB OT90ALAA4T Description Description ABB 90A 4P stl enc sfty sw open t+b IP54 Metal Enclosed (Loadbreak) Related products ABB 2TLA042023R0100 ABB ACS601-0100-3 ABB 2TLA040001R1100 ABB 3BSE008510R1 ABB ACS550-01-038A-4 ABB 3BSE008508R1