Nowadays, there are many brands and various types of leakage protectors on the market. It is a mixed bag of fish and dragons. How to choose the leakage protector? Xiaobian today will introduce the leakage protection model specifications to let you protect against leakage. Learn a little more.
First, 5SM leakage protector model parameters
Specification/Model: 5SM; Scope of application: Used in distribution lines and electrical equipment to protect against direct or indirect contact with live parts (including human or biological electric shock), such as leakage, fire accidents and damage to insulation. Wide range of use, rated operating current from 16 - 80A, rated fault current from 10 - 500mA. The outer casing of the leakage switch is made of a thermosetting material, which has high heat resistance and impact strength, and high dielectric strength. The leakage switch has a standard modular structure, small size and light weight. The mounting parts are made of metal sheets and springs, which can be safely and securely mounted on a 35mm standard rail. For the 5SM series leakage switch, the funnel type combination Terminal Block makes the wiring simple and reliable, and can connect the bus bar row at the lower terminal. It is also possible to install an auxiliary switch on its side. For the 5SU series leakage switch, in addition to the leakage protection function, it also has short-circuit and overload protection functions, and has a strong current limiting capability, and the energy limit level is up to 3 (except 5SU3747). The series of products use electromagnetic tripping system, no auxiliary voltage, safer to use, and immune to voltage fluctuations and climate. Also rated working voltage: AC230/400V. Rated operating current: 16 - 80A. Rated leakage current: 10 - 500mA. Tripping characteristics (for 5SU). B, C breaking capacity (for 5SU). 4.5KA, 6KA, 10KA, 20KA. Number of poles: 2P (1P + N), 4P (3P + N). Compliance with standards: IEC1008, IEC1009, DIN VDE 0664, etc.
Second, low voltage leakage protector model
Low-voltage leakage protector models include “DZL18-20 series leakage switch (two poles), DZL31 leakage protector (two poles), K series leakage protector (2, 3, 4 poles), DBK2 series leakage protection switch, DZL43, FIN series Leakage protection switch, E4FL column leakage protector, F360 series leakage protection switch, DZL29 series leakage protection circuit breaker and other series models.
The leakage current of the low-voltage leakage protector (switch) is divided into 10, 20, 30, 100, 300, 500 mA and other specifications. The rated current is divided into 10, 16, 20, 25, 32, 40, 63, 80. , 100, 120, 150..... Ampere and other specifications.
Although it is clear in the national standard GB 50096--1999 "House Design Code" that each household should be installed, each unit must be installed, the whole building should be equipped with a low-voltage leakage protector, but in fact there are big problems. Because as long as there is a little leakage, the entire household, the entire unit, and the entire building will be tripped. Some electric utilities even do not intend to use a three-phase air switch for the unit distribution box. The reason is that "one phase short circuit will trip all the units together, which will expand the range of power outages." So now everyone only implements the specification of installing a low-voltage leakage protector (switch) in the socket circuit.
Generally, each household should be equipped with a low-voltage leakage protector (switch). The leakage current can be 10, 20, 30 mA, rated current 32A (within 140 square meters), 60 amps (160 square meters or more), and each unit must be installed. The whole building should be installed, and the rated current of the switch can be selected by multiplying the total number of households by 20 amps. Use a low-voltage leakage protector (switch) with a leakage current of 100-300 mA.
Third, the leakage protector description - outstanding features 
1. The electromagnetic switch mechanism (multiple patents) has a simple structure, reliable operation, and a motor-type closing mechanism.
2. The patented zero-break protection technology overcomes the shortcomings of voltage-type zero-break protection of other products, does not protect the lower end of the protector, and prevents the high-voltage burnout of single-phase electrical appliances caused by the zero-break of the grid.
3, high-frequency lightning protection technology, lightning protection performance is much higher than similar products using high-voltage lightning protection technology.
4. Intelligently process the load, voltage and leakage of the line.
Fourth, the leakage protector description - general function
1. Patent of electronic overcurrent protection technology, the overcurrent protection is high precision and is not affected by the ambient temperature.
2, LED digital display, can accurately display the actual leakage value of the power grid, three-phase current value and the cause of the failure.
3. Automatic shifting function, according to the actual leakage value of the protected line, the rated leakage action value can be automatically selected to improve the operation rate of the power grid.
4. The user can set the function by himself. The action setting value of each protection function can be set or modified by the button to adapt to the needs of different line conditions.
V. Leakage protector description - auxiliary function
1. Reserved communication interface, which can realize remote branching, closing control and IC card meter control.
2, can increase the temperature control function, control the distribution box fan to adjust the temperature.
Sixth, leakage protector composition
It consists mainly of three parts:  detection component, intermediate amplification link, and operation actuator.
The above is a small series on the leakage protection model specifications and other aspects of the finishing introduction, I hope to help you!
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