Switching element, 1 NO, 1 NC, solder pin connection Switching element SIRIUS 3SB2 as an accessory for 3SB2 command and signaling devices.The 3SB2 pushbuttons and indicator lights are modular, tried and tested in practice and suitable for industrial use. Their small design makes them particularly suitable for small control surfaces. They are highly functional, extremely robust and comply with the standards IEC/EN 60947-5-1 and 60947-5-5. They can be installed without special tools and in high packing density.Available versions: various contact types with flat plug or solder pin connection.Extensive optional accessories (e.g. protective cap, labeling plates or handles) available.3SB2 - space-saving, tried and tested in practice and suitable for industrial use!