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ZBZ-4.0/1140(660)Z Mine explosion proof transformer for coal electric drill
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ZBZ-4.0/1140(660)Z Mine explosion proof transformer for coal electric drill for remote starting or stopping the electric drill
Related Product Searches:ZBZ-4.0/1140(660)Z Mine explosion proof transformer for coal electric drill,High Quality explosion proof transformer,explosion proof transformer ZBZ-4.0/1140(660)Z
ZBZ-4.0/1140(660)Z Mine explosion proof transformer for coal electric drill
1. The device is used for the remote control and protection of short circuit, overload and leakage of 127V 1.2KW portable electric coal drill in the coal mine.
2. Technical data:
Rated voltage (V): 1140(660)/133
660(380)/133
Rated current ( A ) : 1.27(2.19)/10.85
2.19(3.79)/10.85
3. Drill power : 1.2KW
4. Resistance tripping value of leakage: 3KΩ
5. Leakage tripping time: ≤0.25s
6. Protected distance of short circuit: 0-300m
