The Jiangte BU10 series braking unit is a low-cost energy-saving braking unit. It is suitable for various brands of low-voltage 400V inverters, and the maximum number of units is 10. It can be used in parallel, and it is allowed to be used in occasions with large fluctuations in the power grid. Its special design allows the use of ordinary resistors without the need to select a resistorless resistor. The resistor box can ensure that the braking IGBT works in the saturation zone. It has complete protection functions, such as short circuit, low voltage, overvoltage, fast fuse, overheating, etc., automatic voltage tracking throughout the process, and full-band noise filtering, which will not interfere with other devices.