The BKX series distribution boxes are a new type of distribution box designed based on the requirements of power users and design departments, adhering to the principles of safety, economy, rationality, and reliability. The products feature versatility, reasonable structure, practical circuit schemes, strong series compatibility, and high protection levels. The enclosure protection levels of the distribution boxes range from IP30, IP40, IP44, IP54 up to IP65, making them suitable for replacement and upgrading. The BKX series distribution boxes are suitable for power users in industrial and civil buildings, with a rated voltage of AC 380V, rated insulation voltage of 500V, maximum rated current not exceeding 250A, frequency of 50Hz, and a rated current of no more than 125A for each output short-circuit protection device. They are used for overload, short-circuit, and leakage protection of electrical equipment, as well as circuit switching or metering.