Electrical accessories - Circuit-breakers for overcurrent protection for household and similar installations - Part 1: Circuit-breakers for a.c. operation (IEC 60898-1:2015, modified + COR1:2015 + AMD1:2019)

This technical specification addresses safety requirements and performance criteria for overcurrent protection breakers used in household and similar installations operating on alternating current. It establishes fundamental rules for the design, construction, and testing of such devices to ensure reliable protection against excessive currents that could lead to fire or electric shock hazards. The document incorporates necessary corrections to previous versions, ensuring that all referenced parameters and testing methodologies remain up-to-date with current international practices. It outlines specific conditions for breaking capacity, making capacity, and short-circuit withstand capability, providing a consistent framework for manufacturers and testing laboratories. The scope covers low-voltage devices designed for use in residential, commercial, and light industrial environments, focusing on aspects such as temperature rise, endurance under electrical stress, and mechanical stability. By aligning with broader international norms while integrating specific regional amendments, this specification facilitates trade and ensures interoperability. It serves as a reference for compliance assessments, guiding the development of protective equipment that meets essential safety objectives without compromising operational efficiency. The text details procedural guidelines for verification and certification, supporting the maintenance of high safety standards across the electrical equipment market.