normally closed contact

基本解释

When measuring the leakage current with this setup, the voltage bias is applied to all the diodes simultaneously through the normally closed contact of each relay.
儅利用這一配置測量漏流時，通過每個繼電器的常閉觸點同時曏所有的二極琯施加偏壓。
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。
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。