ABB 3BSE021456R1 Description Description ABB TB840 MODULEBUS OPTICAL CLUSTER MODEM FOR 1+1 REDUNDANT OPERATION Related products ABB 2TLA040037R0900 ABB 2TLA040037R0800 ABB GJV3074397R1 ABB FPR3600227R1202 ABB 1SFN075112R1000 ABB 3BSE008510R1
