Product Introduction of Mining Explosion-proof Vacuum Feeder Switch

KBZ-250/1140II, KBZ-350/1140(660)II mining explosion-proof vacuum feeder switch is used in coal mines containing explosive gas(methane) and coal dust  for three-phase isolated neutral power supply system with AC 50Hz, rated voltage 1140V, and  rated current to 350A(250A). It can be used as master switch or sub switch in the power supply system, or as feeder switch of mining flameproof mobile substation, also can be used to control the infrequency starting large capacity motor.

Main Parameter of Mining Explosion-proof Vacuum Feeder Switch

Rated Voltage: 1140V (660V)

Rated Current: 400(200A)

Ultimate Breaking Capacity: 7.5KA

Rated Working System: Long-term

Operation: electric operation, sub-gate

Dimensions: 780mmx550mmx850mm

Weight: 310kg

Figure Photos of Mining Explosion-proof Vacuum Feeder Switch