BKD9-400Z/1140(660) Ⅰ, Ⅱ Mining Explosion proof Vacuum Feed SwitchDetailed product description：

The BKD9-400Z feeder switch is suitable for use in environments with explosive mixtures of gases such as methane and coal dust in coal mines and their surrounding media. It can be used as the main or branch switch of the power supply system in circuits with 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 overload, short circuit, undervoltage, and leakage lockout protection. When the Type I external leak detection relay is connected, it has leakage protection; Type II has selective leakage protection, short-circuit testing, and leakage testing functions.

BKD9-400Z/1140 (660) Ⅰ, Ⅱ Mining Explosion proof Vacuum Feed Switch Model and Meaning



·Main Technical Parameters of BKD9-400Z/1140 (660) Ⅰ and Ⅱ Mining Explosion proof Vacuum Feed Switch

Model, Specifications	Rated Voltage （V）	Rated Current （A）	Instantaneous current release device Set current (A)	Ultimate Breaking Capacity (A)		Electrical Life (times)	mechanical life (times)
				1140V	660V
BKD9-400Z	1140/660	four hundred	400-2400	seven thousand and five hundred		three thousand	fifteen thousand