Extension insert flex 230 V

3 wire connection (neutral conductor required). For the extension of the Busch-Comfort switch, Busch-Watchdog or 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. For control element flex, 1gang, wireless, 62711-WL. For control element flex, 2gang, 64721. For control element flex, 2gang, wireless, 62721-WL. For Busch-Comfort switch flex control element 64765-... . For Busch-Watchdog 180 flex sensors 6476x-... . For Busch-Watchdog 180 flex sensors, wireless, 6276x-...-WL. For Busch-Presence detector flex sensors 6475x-... . Combinable with all flex inserts.