Mining Explosion Proof and Intrinsically Safe Vaccum Electromagnetic Starter
QJZ-30, 60/660 (380) this series mining explosion-proof and intrinsically safe vacuum electromagnetic starter for containing explosive gas and coal mine, it is mainly used for the ac 50 hz, 660 v voltage (380 v) of the circuit, the control of flameproof three-phase asynchronous motor can realize direct start, stop, and may carry out phase during downtime.
CONTACT: laura@dongdajituan.com
Application
Used in coal mine or underground where exists methane compound gases and dangerous explosive gases,it applys for power supply network which controls (remote-control) 3-phase squirrel-cage motor with AC50 Hz,1140V and neutral point not earthing directly.
Features
Rectify and resetting the rated current through dialing the code or shift the buttons.
With the protection of short circuit, overload, phase-lose, voltage-absorb, leakage atresia and so on.
With the state instructions of power, mechine operating,working fault;
Near or remote control can be chosen;
The intrinsical safe type has water level detection function, controlling the pump start or stop according to the water level.
Parameters
| Rated Voltage(V) | 660.380 |
| Rated current (A) | 30.60 |
| Rated Frequency(Hz) | 50 |
| Current setting | sub-file setting |
| Intrinsically safe parameters | Uo:AC 9V/DC7.1V,Io:AC2.5mA/DC1.3mA |
CONTACT: laura@dongdajituan.com
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