Use
The device is used in coal mines containing exploisive gas(methane) and coal dust. In the three-phase isolated neutral power supply system with rated voltage 10KV or 6KV, frequency 50Hz rated current 100A-630A, The device can be used as the acceptance and distribution of electrical energy, and electrical equioments switches of start-up, control and protection.

Main technical parameters
1. Rated Voltage: 10(6)V
2. Rated current: 100, 150, 200, 300, 400, 500, 630(A)
3. Rated frequency: 50Hz
4. Rated short-circuit breaking current (peak): 12.5KA
5. Rated short-ciecuit closing current: 31.5KA
6. Rated tolerance peak current: 31.5KA
7. Rated short-term tolerance current(RMS): 12.5KA
8. Rated short-term duration: 2s
9. Rated short-circuit breaking number: 16 times