Explosion-proof and intrinsically safe dual power vacuum Ventilator starter
Main application
This product is suitable for underground coal mine, in the ac 50Hz voltage 1140V, 660V three-phase center point ungrounded line, to carry on uninterrupted control of the tunneling work surface ventilation, with dual fan dual power supply and automatic switching all control functions.
1)With dual fan dual power supply all control functions; 2)Automatic switch between main fan and standby fan; 3)With wind power locking and gas and electricity locking interface; 4)Quick door structure.
5)With short circuit, overload, leakage blocking, break equal protection function.
Audited Supplier 
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