KBZ-200,400/1140(660) Mining Explosion proof Vacuum Feed SwitchDetailed product description：

KBZ-200, The 400/1140 (660) explosion-proof vacuum feeder switch for mining is suitable for environments with explosive mixtures such as methane and coal dust in coal mines and their surrounding media. It can be used as the main switch or branch switch of the power supply system in AC 50Hz, rated voltage of 660V or 1140V, and rated current up to 400A. It can also be used as a high-capacity motor for infrequent start-up. The feed switch has protection against overload, short circuit, undervoltage, and leakage lockout, as well as remote shunt tripping. When used in conjunction with a leakage relay, it also has leakage protection.  

KBZ-200, 400/1140 (660) Mining Explosion proof Vacuum Feed Switch Model and Meaning


KBZ-200, Main technical parameters of 400/1140 (660) mining explosion-proof vacuum feeder switch:

Model, Specifications	Rated Voltage （V）	Rated Current （A）	Ultimate breaking ability （A）	Electrical Life (times)	mechanical life (times)
KBZ-200	six hundred and sixty one thousand one hundred and forty	two hundred	seven thousand and five hundred	three thousand	fifteen thousand
KBZ-400		four hundred	seven thousand and five hundred	three thousand	fifteen thousand

KBZ-200, 400/1140 (660) Mining Explosion proof Vacuum Feed Switch