XL-21 series low-voltage power distribution cabinet is suitable for power distribution and lighting distribution of three-phase four-wire power system with AC frequency of 50HZ, voltage of 500V and below in industrial and civil buildings.
At the same time, it is suitable for making all kinds of motor starting cabinets, including full pressure direct starting cabinet, full digital control soft starting cabinet, autobuck starting cabinet, star triangle starting cabinet, multi-speed motor starting cabinet, etc.
It has dozens of primary line scheme numbers or derived scheme numbers for selection and use, and has a wide range of application.
The power cabinet is a combination of electrical control cabinets that provide power for the normal operation of the whole machine, including contactors, frequency converters, high voltage cabinets, transformers, and so on. Its role is to:
1. Power supply for electrical equipment (power supply for equipment);
2. Electric equipment for start-stop operation (with start-stop button);
3, the operation of the detection equipment (set the signal indicator light, ammeter voltmeter);
4, the protection of electrical equipment (circuit breaker) power cabinet is the power distribution cabinet, which is designed to provide power and control for power equipment (generally refers to the motor).