Mushroom pushbutton, 22 mm, round, plastic, black, 40 mm, with RONIS lock, lock number 455, positive latching, acc. to EN ISO 13850, key-operated release

SIRIUS ACT 3SU1 is SIEMENS's modular, tried-and-tested complete range of pushbuttons and indicator lights in round design. Whether plastic or metal - we can supply the ideal solution for any application. Your benefit: SIRIUS ACT 3SU1 products are quick and easy to install - and are dependable in operation. Versions of the SIRIUS ACT system of pushbuttons and indicator lights include 4 customized variants can be configured flexibly: — An actuating or signaling element in front of the control panel — A holder for securing behind the control panel — Up to six contact modules and/or one LED module (mounted onto the holder), single-pole contacts can be stacked — A comprehensive range of accessories for inscription/marking