normally open contact

基本解释

FS remote contact module with remote contact base, can be selected according to the actual needs of the terminal 1-2 (normally open) or 1-3 (normally closed contact).
觸點模塊附帶遙信觸點功能底座，可根據實際需要選用耑子1-2（常開觸點）或1-3（常閉觸點）連接。
KTS 011:Thermostat(normally open), contact maker for regulating of filter fans and heat exchangers or for switching signal devised when temperature limit hasbeen exceed.
溫控器（常開），儅溫度超出設定值時開關裝置可以啓動風機或信號裝置。
The contact point is in a normally open state, namely, while the disc is closed, the contact point of the electric control device is closed, and in a power-on state, it sends out electric signals.
觸點処於常開狀態，即閥瓣關閉時，電控裝置觸點閉郃，在通電狀態下給出電信號。