What is the difference between power distribution cabinet, switch cabinet and power distribution box?

In terms of usage, distribution boxes are generally used in households, while distribution cabinets are mostly used in centralized power supply, such as industrial electricity and building electricity. Both distribution boxes and power distribution cabinets are complete sets of equipment. The electric box is a complete set of low-voltage equipment. The power distribution cabinet has high voltage and low voltage. The size of the power distribution box and the power distribution cabinet are different. Of course, the bigger one is the power distribution cabinet. In terms of form, the power distribution cabinet is a vertical cabinet as its name suggests, while the distribution box is a box type.

The box that distributes electrical energy is called a distribution box. It is mainly used for the control and distribution of electric equipment, and protects the line from overload, short circuit and leakage. Distribution boxes are installed in various places, such as schools, institutions, hospitals, factories, workshops, homes, etc., such as lighting distribution boxes, power distribution boxes, etc.

The power distribution cabinet is to assemble the switchgear, measuring instruments, protective appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on the screen according to the electrical wiring requirements to form a low-voltage power distribution device. During normal operation, the circuit can be turned on or off by means of a manual or automatic switch. There are many classifications of power distribution cabinets. When it fails or runs abnormally, it cuts off the circuit or alarms with the help of protective appliances. The measuring instrument can display various parameters in operation, and can also adjust some electrical parameters to prompt or signal deviations from normal working conditions.

The power distribution cabinet can be equipped with various explosion-proof electrical appliances or various combinations of explosion-proof electrical appliances, such as: explosion-proof power (lighting) distribution box, explosion-proof electromagnetic starter, explosion-proof power maintenance box, etc.; and the distribution box can be equipped with circuit breakers, contactors, Thermal relays, buttons and indicator lights can be used for lighting and power motor control purposes. That is to say, the distribution cabinet can contain the distribution box, and its functions are more extensive and diversified. Commonly used in factories in power generation, distribution, and substations.

There is a big difference in the performance of power distribution cabinets and switch cabinets. Switchgear is a complete set of switchgear and control equipment. It serves as a power center and main power distribution device. Mainly used for the control, monitoring, measurement and protection of power lines and main electrical equipment. It is often installed in substations, power distribution rooms, factories and other places.