ABB OTC2504PC3-S Description Description ABB Enclosed 250A C/O ATS 800 OT Change over Switches Related products ABB 3BSE008516R1 ABB 3BSE008510R1 ABB 2TLA040037R0900 ABB 2TLA042023R0100 ABB 3BSE008508R1 ABB 2TLA042021R8000