ABB OTC6304PC3-S Description Description ABB Enc 630A C/O ATS 800 OT Change over Switches Related products ABB 2TLA042021R8000 ABB 1SFN075112R1000 ABB 2TLA040037R1300 ABB 2TLA040001R0000 ABB 3BSE013230R1 ABB ACS550-01-038A-4