ABB OTC2504PC3-H Description Description ABB Enclosed 250A C/O with heater ATS 800 OT Change over Switches Related products ABB 1SFN075112R1000 ABB 2TLA040037R1000 ABB 3HNE00313-1 ABB 2TLA042021R8000 ABB 2TLA040001R1100 ABB 2TLA042023R0100