特性： 多种规格，包括内置发光二极管 Multiple sizes, including built-in light-emitting diodes 二组/四组转换触点形式 Two sets / four sets of conversion contact forms 防尘罩型封装形式 Dust cover type package 线圈触点间耐压2000V The withstand voltage between the coil contacts is 2000V 带测试按钮规格 With test button specifications