金属按钮开关和信号指示灯在许多工业设备中都有良好的运用，起到控制和警示的作用，不同的按钮开关型号存在哪些区别呢?

　　Metal button switch and signal indicator are well used in many industrial equipment, playing the role of control and warning. What are the differences between them?

　　1.选择按键开关一般无论引脚接线是何种方式，均具有触电结构，信号灯则没有；指示灯由于需要带灯，一般具有带灯电压这一参数，对于不带灯的按键则不予考虑。

　　1. The selection of key switch generally has electric shock structure regardless of the pin wiring mode, while the signal lamp does not; since the indicator lamp needs to be equipped with a lamp, it generally has the parameter of lamp voltage, and the button without lamp is not considered.

　　其实接触过按钮开关和指示灯生产的人都知道，上面的按键和灯都是可以随意装卸和组合的，需要按钮和灯时，都装上就是带灯按键了，拿掉按键装置就是指示灯。

　　In fact, people who have contacted button switch and indicator light production know that the buttons and lights above can be loaded and assembled at will. When the buttons and lights are needed, they are all equipped with the button with light, and the indicator light is when the button device is removed.

　　2.选择信号灯或者指示灯仅具有警示提示作用，接通后灯光便处于常亮状态，但是对于按钮开关，出了带灯按键外，常见的不带灯光。

　　2. The selection of signal light or indicator light only has the function of warning and prompt. After connecting, the light will be on normally. However, for the button switch, there is no light except for the button with light.

　　同时，平常的按键，无论是自复按键还是自锁按键，都是可以用手按下控制线路，但是信号指示灯则不可以，这也是两者最大的不同。

　　At the same time, ordinary buttons, whether self reset or self-locking, can be manually pressed on the control circuit, but the signal indicator is not. This is the biggest difference between the two.

　　所以如果仅需要状态显示，则选择指示灯；仅需要线路控制，则选择普通按键开关；需要控制线路的同时并由状态显时，需要选择带灯按键开关。

　　Therefore, if only the status display is required, the indicator light is selected; if only the line control is required, the ordinary key switch is selected; when the line control is required and the status is displayed, the key switch with light is required.

　　由此可以看出，金属按钮开关和信号指示灯的区别还是比较明显的，采购时一定要按需购买。

　　It can be seen from this that the difference between metal button switch and signal indicator light is relatively obvious, and it must be purchased on demand when purchasing.