Siemens 3SB02-3BRB is a 22 mm selector switch with three positions and a spring-return actuator, featuring a round black knob for manual operation. The 3SB02-3BRB designation identifies this exact three-position, spring-return variant within Siemens’ 22 mm selector switch lineup. Listings on Siemens-related marketplaces clearly reference Siemens 3SB02-3BRB 22 mm selector switch 3-position round black knob, confirming the form factor and essential features.
