2CKA006800A3051

3 wire connection (neutral conductor required). For the extension of the ABB Comfort switch, ABB Watchdog or ABB presence detector installations. For group control of flex inserts via extension unit communication. Operation in 1gang 2way installations via push button input. Without control unit. For control element flex, 1gang, 64711-500. For control element flex, 1gang, wireless, 62711-WL-500. For control element flex, 2gang, 64721-500. For control element flex, 2gang, wireless, 62721-WL-500. For ABB Comfort switch flex control element 64765-…-500. For ABB Watchdog 180 flex sensors 6476x-…-500. For ABB Watchdog 180 flex sensors, wireless, 6276x-...-WL-500. For ABB presence detector flex sensors 6475x-…-500. Combinable with all flex inserts. 64891 U-500