There are many improvement schemes of distribution box, including the improvement of heat dissipation, and the improvement of Dongguan distribution box is also a common scheme. How to improve the heat dissipation? Let's have a detailed explanation.

For the distribution box with the capacity of 100 KVA and above, the temperature control relay (ju-3 or ju-4 ultra small temperature relay) and axial flow fan should be installed on the side wall of the cooling window in the box, and installed on the box at the upper left of the control panel of the distribution transformer, so that when the temperature in the box reaches a certain value (such as 40 ℃), the exhaust fan can start automatically to force heat dissipation.