What is the difference between distribution box, distribution cabinet and control box?

There is no essential difference between the distribution box and the distribution cabinet, which are used to install the distribution device, but the size and placement are different, and the weighing cabinet on the ground is hung on the wall.

Switch cabinet is a general term, which is divided into: incoming cabinet, circuit breaker cabinet, transformer cabinet, metering cabinet, ring network cabinet and so on.

The control box is generally used to install a certain device control switch and indicator light.

First, conceptual distinction

(1) Distribution box

The distribution box is a small power distribution box that contains power switches and safety devices. The structure is relatively simple, and it is mostly used for terminal power distribution.

Distribution box is the last level of power distribution facilities in the power supply system, a distribution box can be a power supply line and multiple power supply output circuits, from the distribution box leads to the power supply output circuit to each electrical load, because the volume of the distribution box is small, can not be put into the large distribution equipment, so the capacity of the distribution box is not large, generally 4-8 small loads with a distribution box, The distribution box is arranged in the center of the power supply load, and the power is sent to the load with cables or wires.

(2) Power distribution Cabinet

The power distribution cabinet is the upper level power distribution equipment of the power distribution box, its volume is larger, which can be put into the larger electrical equipment, so it is generally used as a medium capacity load power distribution equipment, including the power distribution box, motor, etc., its applicable capacity is different in various process fields, generally in a few kilowatts to dozens of kilowatts.

In addition to the leakage protection and short circuit protection provided by the traditional distribution box, it also provides overvoltage protection, spark power off, lightning protection, automatic power supply, temperature protection, power limit, fault recording, self-check function, learning memory, mobile Internet visualization and digitalization.

Second, functional distinction

Simply put, the box that distributes electrical energy is called the distribution box, and the distribution box is mainly used for the control and distribution of electrical equipment, and plays a protective role in the overload, short circuit and leakage of the line. Distribution boxes are installed in various places, such as schools, organs, hospitals, factories, workshops, families, etc., such as lighting distribution boxes, power distribution boxes, etc. The distribution box is small, can be dark in the wall, can stand on the ground.

Whether it is the distribution box or the distribution cabinet, it is not desirable to have less infrastructure in People's Daily life. Now some people do not realize the importance of the distribution box, distribution cabinet, casually put items on the shelf, and even malicious damage, causing no small damage to the distribution facilities, is not conducive to the development of the power grid circuit system.

Three, the difference between control box and distribution box

The control box is suitable for factories and mines, enterprises, shopping malls, hotels, schools, airports, ports, hospitals, high-rise buildings, living areas and other occasions, AC 50HZ, rated working voltage AC 380V low-voltage power grid system, as power, lighting distribution and motor control, suitable for indoor wall hanging, outdoor floor installation of power distribution equipment.

The control box is also suitable for AC 50HZ, voltage 500V below the power system as fire pump control, submersible pump control, fire fan control, fan control, lighting distribution control, etc., the control mode has direct start control, star triangle buck start control, automatic buck start control, inverter start control, soft start control and other control modes. Isolation switch, fuse type switch can also be used as isolation breakpoint.

The switchgear, measuring instruments, protective appliances and auxiliary equipment are assembled in a closed or semi-closed metal cabinet or screen according to the electrical wiring requirements to form a low-voltage distribution device. The circuit can be switched on or off by manual or automatic switch during normal operation.

In case of failure or abnormal operation, cut off the circuit or alarm 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 deviation from the normal working state. It is commonly used in power generation, distribution and substation.