DZB-40/48 Mining explosion-proof resistorDetailed product description：

Scope of application and working conditions:
DZB-40/48 mining explosion-proof resistor is suitable for controlling the starting, speed regulation, forward and backward control of 2.5-ton 5-ton battery electric locomotives.

The DZB-40/48 mining explosion-proof resistor is suitable for the following working environments:

1. Altitude not exceeding 1200m;
2. The ambient temperature ranges from -20 ℃ to+40 ℃;
3. The relative humidity of the surrounding air does not exceed 95%;
4. In places where there is a mixture of methane and coal dust explosions;
5. No harmful gases capable of damaging insulation and corroding metals;
6. In the longitudinal direction, there is an impact acceleration of no more than 30 meters per second, and in the vertical, transverse, and longitudinal directions of the locomotive, there is a sinusoidal vibration with a frequency f of 1-50Hz. The amplitude A is:

1≤f≤10Hz	A=25/f(mm)
10≤f≤50Hz	A=250/ftwo(mm)

7. Installed in the resistance room of industrial and mining electric locomotives

Technical parameters:
1. Rated voltage: 48V (DC);
2. Long term working rated current: 40A;
3. Resistance value: 0.4 Ω (5%~-7%);
4. Weight: 45Kg;