Sell push button switch

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LA139M series pushbutton switch are used in industrial controlling circuits of AC 50HZ or 60HZ, rated operational voltage 380V and below and DC operational Voltage 220V and below for controlling in magnetic starter, contactor, relay and other electrial circuits. the buttons indiactors can also be used in the place with indicated light or signal, the conform with standerd GB1408.5-2001.
LA139M Structure and function:
1. Adopting anti-moving operation end, the button can not be dismounted from the front side.
2. All contactors have the function of changover circuit and self-cheaningand can still ensure the reliability of contacts under low voltage and mini current(5V,5mA) .
3. NO and NC contactor group are independent to each other, combine them according to demand in usage.
4. Concealed terminals are more safe and reliable. Metal button operation end and its base adopt zinc alloy, elegant and firm.
5. Buttonwith lamp, singal lamp universally adopt BA9S lamp-socket, you can choose various bulb according to needs.