ABB OTL32B4M Enclosed 4 Pole Switch OT Change over Switches Description Description ABB OTL32B4M Enclosed 4 Pole Switch OT Change over Switches Related products ABB 2TLA040001R0000 ABB 3HNE00313-1 ABB 3BSE013230R1 ABB ACS800-01-0011-5 ABB GJV3074397R1 ABB ACS601-0100-3