本规范涵盖了主要用于电子和通信设备的电路选择器、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安培或以下的电阻负载，除非另有规定（见3.1）。按照6.2.2的规定，获取规格表所涵盖设计的开关将需要额外的数据。规格表未涵盖的设计开关的获取将需要额外的数据，提供详细的电气和机械要求、公差以及对本文规定的一般要求和测试的适用添加和例外情况（见6.2.3）。因电气配置、操作轴形状或尺寸、结构类型、开关段数量而不同的开关（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、绝缘或海拔高度被视为特定样式下的标准开关，前提是它们满足特定样式的外壳尺寸和尺寸、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.