Indicator lights, 16 mm, round, plastic, yellow, smooth, for labeling with insert caps SIRIUS 3SB2 indicator lights for signaling switching states or faults in systems.The 3SB2 pushbuttons and indicator lights have a modular design, are tried and tested in practice and are 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: several colors, illuminated/unilluminated, with/without labeling, latching/momentary actuation, and various push button heights.Note: Please order individual device, holder and switching elements separately.3SB2 - space-saving, tried and tested in practice and suitable for industrial use!