BZA1 series mining explosion-proof control button used in explosive gas (methane) mixture of coal mine, in the exchange of 50Hz, 127V voltage of the power supply system, the signal, electromagnetic actuators such as remote control devices, one move the button for a one-way starter for two button, three button, three button for reversible starter.

This series of button is composed of flameproof shell, junction box and cable introducing device, the button, the button control rod components and other components. The
housing and the upper cover, casing and the junction box is for plane flameproof joints connected by bolts and other fasteners; Terminal button control rod is a cylinder
explosion-proof surface through a fastener connected with upper cover of the casing; the introducing device is used for the introducing power cable.