QBZ Series Explosion-proof Vacuum Feeder Switch

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Introduction of QBZ Series Explosion-proof Vacuum Feeder Switch

Mining explosion-proof vacuum feeder switch

applicable scope

mining explosion-proof vacuum feeder switch is used in coal mines containing explosive gas and coal dust, for three-phase isolated neutral power supply system with AC 50Hz, voltage 1140V and rated current with 200-1000A. 

It can be used master switch, branch switch, or as feeder switch of mining flameproof mobile substation with , also can be used as the large capacity motor which not frequent starting, has the function of overload, short circuit, undervoltage, electric leakage protection.

products feature

the structural characteristics

liquid crystal display

communications net work function

three-tier selective leakage protection

current, voltage, fault parameters, real-time display

Main Parameter of QBZ Series Explosion-proof Vacuum Feeder Switch Series

Rated voltage	1140V
Rated current	630A 500A
Ultimate breaking capacity	12.5KA
Rated working system	Long-term
Operation	Electric operation, sub-gate
Dimensions	960mmx630mmx980mm
Weight	490kg

Figure Photos of QBZ Series Explosion-proof Vacuum Feeder Switch