It can also be connected through its own relay. This is the most common connection. If there are other control appliances, it depends on the specific situation. (Carry out frequency conversion, transmission and PLC wiring according to the instructions)
Extended data
People's Daily Online, Chongqing, September 23 Recently, the combined distribution box developed by Southwest Branch of China Railway Electrification Bureau Group City Railway Company won the national patent for utility model and design.
The patent innovates the structural design of three-stage switch boxes, integrates three switch boxes with independent power supply circuits, control and protection equipment, and realizes the power distribution and centralized control functions of the three switch boxes through a master switch box.
At the same time, through modular design and assembly design, each built-in switch box has the independent control and protection functions of the traditional switch box, and through the chute design, the function of quickly taking out a single switch box for independent use is realized, which further improves the adaptability of the combined switch box to various construction working environments and improves its convenience of use.
In addition, by optimizing the selection of box materials and electrical components, the lightweight and miniaturization design of distribution box is realized, which makes it more convenient to carry and use on site and can also meet the requirements of strength and fire prevention.
People's Network-small "combined distribution box" won the national patent.