A method for adjusting a tripping unit for a safety switch, wherein the tripping unit has a first current path as pan of a magnetic tripping device, and wherein the tripping unit has a second current path as part of a bimetallic tripping device. According to the invention, a specifiable test current is applied to the tripping unit, a partial current in one of the two current paths is measured, and a cross-section at one of the two current paths is reduced on the basis of the magnitude of the measured partial current.