ABB 1SAR502040R0004 Description Description ABB C579 CONTACT EXPANSION UNIT Related products ABB 2TLA042023R0100 ABB 2TLA040001R1400 ABB FPR3600227R1202 ABB 2TLA042021R8100 ABB 2TLA042021R8000 ABB 3HNE00313-1
