Mining Explosion Proof Vacuum Feeder Switch

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Our KBZ series of mining explosion proof vacuum feeder switch is used in the coal mine with explosive gases as the branch switch of the power line with the rated frequency and voltage of 50Hz and 1140 or 660 V respectively. It can also serve as the infrequent start control switch for large-capacity motor.

Technical Parameters

Model	KBZ-630/ 1140	KBZ-500/1140 (660)		KBZ-400/ 1140	KBZ-200/1140 (660)
Rated voltage (V)	1140	1140	660	1140	1140	660
Rated current (A)	630	500	400	400	200	200
Leakage blocking value (kΩ)	40±20%	40±20%	40±20%	40±20%	40±20%	22±20%
Leakage action value (kΩ)	20	20	20	20	20	11

Note: The product models given above are for reference. We can design and manufacture products based on the actual geological conditions your colliery.

Related Names
Flameproof Disconnect Switch | Hazardous Area Equipment | Mining Equipment Supplies

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