Lever switches. Part 3 : Requirements for switches of Type 2, quick-make quick-break (toggle switches)

This technical document establishes specific requirements for 2nd type rapid switches, commonly known as toggle switches, falling under the scope of lever-operated switching devices. It addresses design criteria, testing procedures, and performance parameters essential for ensuring operational safety and reliability in various electrical applications. The publication defines mechanical characteristics, including actuator movement, contact resistance limits, and durability expectations under repeated use. Detailed provisions cover constructional safety measures, dielectric strength, and thermal performance to mitigate risks associated with electrical failure. The content outlines acceptance tests for batch production and type examination, ensuring consistency across manufacturing processes. Specific focus is placed on the mechanical robustness of the toggle mechanism and the stability of electrical contacts during switching operations. These guidelines serve as a foundational reference for manufacturers and regulatory bodies to evaluate product conformity within the defined category of rapid action lever switches. The document integrates technical specifications that align with broader international standards for electrical safety and functional performance.