Refrigerating systems and heat pumps - safety switching devices for limiting the pressure - requirements and tests 制冷系统和热力泵.限制压力的安全转换开关装置.要求和试验
Electrical and air - conditioning equipments on railway vehicles - switching cabinets - part 1 : layout for switching cabinets 有轨车辆的电气和空调设备.转换开关柜.第1部分:转换
Electricity meters , tariff time switches and ripple control receivers ; connection diagrams , terminal marking , circuit diagrams 电度表.计价定时转换开关和波纹控制接收机.连接图.端
Fgd series high - low the fd series , it can easy to use only push convert switch Fgd系列高低温箱是在fd系列低温箱上进一步配置电热管,更能扩大使用范围。公用一个转换开关,即可使用。
Low - voltage switchgear and controlgear - part 6 - 1 : multiple function equipment - automatic transfer switching equipment 低压开关设备和控制设备第6部分:多功能电器第1篇:自动转换开关电器
Transfer switch a transfer switch is an electrical device for switching loads between alternate power sources 转换开关转换开关是能够把负载在备用电源和常规电源之间进行转换的电气设施。
Electronic switches , electronic changeover switches and electronic time switches for appliances and cord electronic switches 电子开关、器具用电子转换开关及电子时间开关,以及拉线电子开关;
Harmonized system of quality assessment for electronic components . integrated analogue switching circuits . blank detail specification 电子元件统一质量评审体系.集成模拟转换开关电路.空白详细规范
Manufacturer of ce certified pilot lamps , push button switches , selector switches , cam switches , and terminal blocks -生产智能控制器,自动转换开关器,机电连锁装置,智能双电源自动切换开关产品。
Static transfer switch are used to provide a fail - safe fail over in the event of a major power failure or in maintenance mode 静态转换开关是应用于当主电源掉电或者设备维护的时候充当一个自动保护装置。