4hp explosion proof motor with cheap price, which with 50Hz rated frequency, rated voltage 380V, S1 duty, ≤1000m altitude, "Y" connection and IEC, EX, ATEX certificates.
Tips: Types of Explosion Proof Motor.
Structural features of positive pressure motor:
1. Equipped with a complete ventilation system, there is no structural dead angle inside the motor that may affect the ventilation.2. The shell and pipe are made of non-combustible materials and have sufficient mechanical strength.3. Maintain a sufficiently large positive pressure in the housing and the main pipeline relative to the outside atmosphere.4. The motor must have safety protection devices (such as time relays and flow monitors) to ensure sufficient air exchange. It must also have an automatic protection or alarm device for underpressure in the shell.5. The quick-opening door or cover on the shell must have an interlocking device with the power supply. There is currently no unified series of positive pressure motors in my country.