The selection of wiring harness for the control cabinet needs to consider the following factors: current load: Choose the appropriate wiring harness based on the current load size of each device in the control cabinet. Generally speaking, devices with high current loads require the selection of thicker wiring harnesses to ensure the stability and safety of current transmission. Voltage level: Select the appropriate wiring harness based on the voltage level in the control cabinet. Wiring harnesses of different voltage levels have different insulation properties and withstand voltage capabilities, which need to be selected according to the actual situation. Environmental conditions: Consider the environmental conditions in which the control cabinet is located, such as temperature, humidity, corrosiveness, and other factors. Choose wiring harnesses with good properties such as high temperature resistance, moisture resistance, and corrosion resistance to ensure their reliability and durability in harsh environments. Installation space: Select appropriate length and shape of wiring harness according to the size and layout of the installation space of the control cabinet for easy installation and wiring. Signal transmission requirements: Select wiring harnesses with good anti-interference performance and transmission quality based on the signal transmission requirements between various devices in the control cabinet. Taking into account the above factors, a suitable wiring harness for the control cabinet can be selected. When choosing a wiring harness, you can consult a professional electrical engineer or supplier for more accurate advice and selection.