ABB OT630KLUU4C 630A 4 pole enclosed changeover switch Metal Enclosed (Loadbreak) Description Description ABB OT630KLUU4C 630A 4 pole enclosed changeover switch Metal Enclosed (Loadbreak) Related products ABB 2TLA042021R8100 ABB ACS800-01-0011-5 ABB 3BSE008516R1 ABB 2TLA040001R1100 ABB 3HNE00313-1 ABB ACS60100203