标准摘要
[中文适用范围]： 主要面向需要精确控制小电流电路的工业及民用场景，确保了中心安装方式下开关组件的兼容性与操作稳定性，为后续的产品研发和质量控制奠定了坚实基础。 [外文原描述]： Specifies IEC type designation, construction, dimensions and electrical ratings for 12-position rotary wafer switches. Establishes four climatic groups and a schedule for type tests.
英文名称Rotary wafer switches (low current rating). Part 2: Rotary wafer switches with central mounting