DQBH-200 Mining Explosion proof and Intrinsic Safety Vacuum Electromagnetic StarterDetailed product description：

·Scope and Application

DQBH-200 Mining Explosion proof and Intrinsic Safety Vacuum Electromagnetic Starter is suitable for starting and stopping mining explosion-proof three-phase squirrel cage asynchronous motors in environments with explosive mixtures of gases such as methane and coal dust in underground coal mines and their surrounding media. It can be directly or remotely controlled in circuits with AC 50Hz, rated voltage of 660V or 380V, and rated current up to 200A, and can be reversed when the motor stops. The starter has protection against voltage loss, overload, short circuit, phase failure, and leakage lockout.  

·DQBH-200 Mining Explosion proof and Intrinsic Safety Vacuum Electromagnetic Starter Model and Meaning

·Technical parameters of DQBH-200 mining explosion-proof and intrinsic safety vacuum electromagnetic starter:

Model, Specifications	Rated Voltage （V）	Rated Current （A）	When η × cos φ=0.75, Control the maximum power of the electric motor (kW)		Limit point of vacuum contactor Breaking ability (A)	Protective components
			380V	660V
DQBH-200/660（380）	380/660	two hundred	one hundred	one hundred and seventy	2500 (3 times)	JR16B