Improved Design of Interface Information Color of Mould Case Circuit Breaker Based on WCAG2.0

Mould case circuit breaker is mainly used in low-voltage switchgear and distribution cabinet, etc. In the specific use environment, factors like low light in the cabinet, poor lighting will bring certain difficulties for users to identify the main panel information. According to the color usage regulations of low-voltage electrical appliances, the main panel information of the mould case circuit breaker is classified. Based on the color design contrast standard of WCAG2.0, the information color design of the original main panel of mould case circuit breaker was analyzed and the color value range in the information color design of the main panel was determined. Through optimization design of panel color of mould case circuit breaker, the color selection of various information modules on the main panel of mould case circuit breaker was optimized from the perspective of man-machine relationship, which provided research ideas for the upgrading of this type of product.