Coal mine switching controller

Main application

TQBZ-2×80(120)/1140(660)SF Coal mine fan explosion-proof dual power vacuum electromagnetic starter (hereinafter referred to as the starter) is applicable to the coal mine underground. In the AC 50Hz voltage 1140V or 660V line, it controls the local counter rotating fan, and has the main machine and the standby machine automatically switch various working modes, so as to ensure the uninterrupted air supply of the coal mine and the safety of production

Technical characteristics

1. Quick opening structure                                   
2. With local control and remote control function                                   
3. With reliable mechanical locking and electrical locking function
                                       
Protection function

With the multiple protection functions as short circuit, overload, leakage and open-phase 

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