ABB OTDC25F4 Description Description ABB 25A @1200VDC DC21B Switch Disc for PV/DC OT Switches Related products ABB 2TLA040001R1100 ABB 2TLA040037R1000 ABB 2TLA040001R1300 ABB 2TLA040037R0900 ABB FPR3600227R1202 ABB 1SFN075112R1000