Mine-Used Flameproof AC Soft/Direct Starter, Low-Voltage Switch
Main application
The QBZ series Vacuum Electromagnetic Starter Device are used in coal mines containing explosivegas (methane) and coal dust. It is suitable for the circuit center. To local control or remote control the start and stop of AC 50Hz, voltage 1140V, 660V or 380V, ungrounded three- phase asynchronous motor, and can be reversed at the stop.
Technical characteristics
1. This device uses a microcomputer as the control core to monitor and control the operating status in real time, and reliably realize various protection functions;
2. It has local control and intrinsically safe remote control functions;
3. It has functions such as menu-based operation, large-screen LCD Chinese display, fault time record query, etc.;
4. It has the function of multiple online use;
5. It has "independent" use function and "dual-speed" use function;
6. The structure is a quick-opening structure.
Protection function
With the multiple protection functions as short circuit, overload, leakage and open-phase
Main technical parameters
1. Rated working voltage: 1140V or 660V
2. Rated working current: 2×200A
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