ABB OTC2504PC3-S Description Description ABB Enclosed 250A C/O ATS 800 OT Change over Switches Related products ABB 3HNE00313-1 ABB 2TLA040001R0000 ABB ACS800-01-0011-5 ABB 2TLA040037R1300 ABB 2TLA040037R0900 ABB ACS800-01-0003-3