XL-21 type low-voltage power distribution cabinet is suitable for power plant and industrial and mining enterprises, in the AC voltage of 500 volts and below three-phase four-wire or three-phase five-wire system for power distribution. XL-21 type low-voltage power distribution cabinet is an indoor device mounted against the wall, the screen before the maintenance. The shell is made of bent steel plate, and the operation handle of knife switch is on the upper part of the right column in front of the box, which can be used for switching the power supply. According to the user's needs, different types of circuit breakers with different current levels can be selected to meet the needs of different users.
Program number
Design number
Propulsion
Control box
Item | Unit | Parameter |
Rated operatingvoltage | V | AC380、AC660 |
Rated frequency | Hz | 50/60 |
Rated short-time withstand current(1s) | kA | 50 |
Rated peakwithstand current | kA | 105 |
Dielectric strength | V1min | 2500 |
Rated insulation voltag | v | 660 |
Protection class | IP30/P40 | |
Overall dimensions (WXDxH) | mm | 600(800、1000)×350(400、600)×1600(1800) |