本规范涵盖了电路选择器、旋转开关的一般要求，这些开关设计用于低功率、交流（ac）或直流（dc）开关应用（能够接通和断开2安培或更小的电阻负载，除非另有规定（见3.1）），主要用于电子和通信设备。按照6.2.2的规定，获取规格表中包含的设计开关需要额外的数据。获取规范表未涵盖的开关设计将需要额外的数据，给出详细的电气和机械要求、公差，以及本文规定的一般要求和试验的适用补充和例外（见6.2.3）。因电气配置、形状或操作轴尺寸、结构类型、开关段数量不同而不同的开关（见6）。 7.6.（见3.2）、套管长度、温度寿命特性、投掷角、振动等级、冲击类型、绝缘或高度被视为特定类型（见3.2）下的标准开关，前提是它们满足特定类型的外壳尺寸、尺寸、环境和电气要求。

This specification covers the general requirements for circuit selector, rotary switches, designed for low power, alternating current (ac) or direct current (dc) switching applications (capable of making and breaking a resistive load of 2 amperes or less, unless otherwise specified (see 3.1), which are primarily for use in electronic and communications equipment. Acquisition of switches of a design covered by a specification sheet will require additional data as specified in 6.2.2. Acquisition of switches of a design not covered by a specification sheet will require additional data, giving detailed electrical and mechanical requirements, tolerances, and applicable additions and exceptions to the general requirements and tests specified herein (see 6.2.3). Switches which differ because of electrical configuration, shape, or size of operating shaft, type of construction, number of switch sections (see 6.7.6), (see 3.2), bushing length, temperature life characteristics, angle of throw, vibration grade, shock type, insulation, or altitude are considered to be standard switches under a particular style (see 3.2), provided they meet the envelope size and dimensional, environmental, and electrical requirements of the particular style.