全部

1·The switches are available in several configurations, with 2 normally open contacts, or 1 normally open and 1 normally close contact.

开关可以有不同的结构，可以有两个断开接点也可以有1个断开接点和1个闭合接点。

2·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).

触点模块附带遥信触点功能底座，可根据实际需要选用端子1-2（常开触点）或1-3（常闭触点）连接。

3·Means need 25a contactor, main contact are three normally open, auxiliary contact is one normally open, control coil voltage is DC 110v, order volume is 20 sets.

表示为25a接触器的主触头为三对常开，辅助触头为一对常开，控制线圈的电压为直流110v，订货数量为20台。

4·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.

触点处于常开状态，即阀瓣关闭时，电控装置触点闭合，在通电状态下给出电信号。