3SU1000-4BL21-0AA0-ZY01Y19

Key Features

• 1Install the compact 22mm round plastic switch for easy panel mounting. 2、Secure operations with a special lock system and two provided keys. 3、Control circuits flexibly using three distinct switch positions (I-O-II). 4、Ensure stable state retention with the reliable latching mechanism. 5、Customize security by choosing compatible SB31, 421, or 455 locks.