Auxiliary switch block for TeSys D and TeSys F contactors. Front mounting block, it offers 1 NO instantaneous contact with a rating of up to 10A 690V AC. It can be used in safety applications. LADN01 is an auxiliary switch block for TeSys D and TeSys F contactors. It offers 1 NO instantaneous contact with a rating of up to 10A 690V AC. Its NC certified mirror contact allows it to be used in safety applications. Easy to mount on the front by clipping on, it offers high reliability and durability. It is certified according to several standards (IEC, UL, CSA, CCC, EAC, Marine) and Green Premium compliant (RoHs/Reach).