Mining Explosion-proof Vacuum Feeder Switch
分类: Explosion Proof Instrument  发布时间: 2013-09-14 15:26 

Mining Explosion-proof Vacuum Feeder Switch
Other Names:explosion proof switch
1.used in coal mine well 2.with kinds of protective functions 3.with related explosion-proof ,safe certificates

Product Introduction

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 first or the end slip distribution, can be used as it low-fed by docking with the mobile substation.

Main Parameter

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