The electromagnet exib I MB for intrinsically safe hydraulic valve limits the electromagnet to arc, spark or high-temperature energy that may ignite the explosive mixture, so that the electromagnet can not ignite the surrounding explosive mixture under normal operation or approved overload and fault conditions. The low-power electromagnet adopts low working voltage and small working current to ensure that the spark energy generated during normal and fault is not enough to ignite the explosive mixture. It is mainly used in the electric control system of coal mine hydraulic support。