KBZ-500, 630/1140(660)(Y) Mining Explosion proof (Mobile Substation) Vacuum Feed SwitchDetailed product description：

·Scope and Application
KBZ-500, 630/1140 (660) (Y) Mining Explosion proof (Mobile Substation) Vacuum Feed Switch is suitable for use in environments with explosive mixtures such as methane and coal dust in coal mines and their surrounding media. It can be used as a feed switch for mobile substations in AC 50Hz, rated voltage of 660V or 1140V, and rated current up to 630A lines (connected to the mobile substation after opening the cover plate), or as a separate distribution main switch or branch switch. It can also be used as a high-capacity motor for infrequent start-up. The feed switch has protection against undervoltage, overload, short circuit, leakage, etc. It also has protection functions such as monitoring the insulation status of the power grid, compensating for capacitor current, high and low voltage electrical interlocking, temperature alarm, etc.

KBZ-500, 630/1140 (660) (Y) Mining Explosion proof (Mobile Substation) Vacuum Feed Switch Model and Meaning


KBZ-500, 630/1140 (660) (Y) Mining Explosion proof (Mobile Substation) Vacuum Feed Switch Main Technical Parameters:

Model, Specifications	Rated Voltage （V）	Rated Current （A）	Ultimate breaking capacity (kA)		Electrical Life (times)	mechanical life (times)
			1140V	660V
KBZ-500（Y）	six hundred and sixty one thousand one hundred and forty	five hundred	twelve point five	fifteen	three thousand	fifteen thousand
KBZ-630（Y）		six hundred and thirty	twelve point five	fifteen	three thousand	fifteen thousand

KBZ-500, 630/1140 (660) (Y) Mining Explosion proof (Mobile Substation) Vacuum Feed Switch