Method of manufacturing of wedges that are positioned between the bimetal and the trigger of a safety switch

摘要

The method involves subjecting an electrical apparatus to an overload current to trigger the apparatus. A triggering duration is measured from the application of the current and is compared to a preset triggering duration. The compared duration is converted into a correction distance by a calculator. The distance is utilized by production lines for manufacturing a spacer of length equal to that of standard spacer block. Independent claims are also included for the following: (a) a spacer for connecting a bimetallic strip and a triggering lock of safety apparatus (b) a safety electrical apparatus with a bimetallic strip.