When we use the distribution box, the failure is inevitable, but be sure to understand the cause of the failure, so that it will be more convenient maintenance, the following is the distribution box manufacturers to explain the reasons for its failure.
1. Low-voltage electrical failure caused by the Environmental temperature

Distribution box in the outdoor operation, it is not only by the direct sunlight to produce high temperature, while running itself will produce heat, so in the hot summer season, the temperature inside the box will reach more than 60 ℃, when the temperature is much higher than the These appliances specify the ambient temperature
2. The failure caused by the product quality
Due to the demand for a large number of distribution box, the construction period is short, the distribution box factory needs low-voltage electrical supply time and the number of urgent and more, resulting in the product quality requirements of the phenomenon is not strict, resulting in some products put into operation Soon failed.
3. Harmony caused by improper electrical selection in the distribution box
As the choice of electrical AC contactor capacity in the manufacture of the system is not very appropriate for different outlet circuit with the same capacity installed in the electrical AC contactor, and failed to part of the outlet contactor current rating on the basis of the normal selection model, improve a current level selection, easy Resulting in the summer hot season operation when the electrical AC contactor burned out of the situation.