电热管电阻箱，主要由电热管电阻器组装而成，适用于大功率，大电流的制动设备、轨道交通、新能源、实验测试设备、电梯、起重等变频器的能耗制动回路中。

Steel Tube Resistor Boxes are mainly assembled by electrically heated tube resistors, applicable to the dynamic braking circuits in the inverters of high-power, high-current braking equipment, rail transportation, new energy, laboratory testing equipment, elevators, cranes,etc.

优势：可用于比较恶劣环境。

Advantages：applicable to relatively harsh environment.