1. Product core introduction
HomeDIYer's DZ47LE earth leakage circuit breakers are available in 1P+N, 2P, 3P, 3P+N, and 4P pole configurations with rated currents ranging from 1 - 60 A. Designed to provide comprehensive protection for electrical systems in residential, commercial, and industrial applications, these circuit breakers belonging to the DZ47LE series are ideal for reliable and efficient electrical protection against overcurrents, short circuits, and leakage problems, ensuring the safety of personnel and equipment. The DZ47LE series of circuit breakers is designed to provide comprehensive protection for residential, commercial and industrial electrical systems against overcurrent, short-circuit and leakage problems, ensuring the safety of personnel and equipment, and is ideal for reliable and efficient electrical protection.
2. The main characteristics of the product
Multi-functional protection features: overload protection, short circuit protection and leakage protection in one. When overloaded, it can quickly cut off the circuit, preventing the wire from overheating for a long time and causing a fire; short-circuit can be tripped instantly, avoiding the strong short-circuit current from causing serious damage to the equipment and wiring; once the leakage is detected (the leakage current exceeds the set value), it will cut off the power supply immediately to protect personal safety, providing all-round and multi-level safety protection for the electrical system and reducing the risk of electrical accidents.
Multiple polarity options: 1P+N, 2P, 3P, 3P+N and 4P can be flexibly selected according to different electrical scenarios and equipment requirements. 1P+N and 2P are suitable for single-phase circuits at home, such as lighting, socket circuits, etc.; 3P and 3P+N are commonly used for three-phase power equipment, such as motors, welders, etc.; and 4P can satisfy the demand for comprehensive protection of three-phase, four-wire systems, whether it be a home distribution box, a commercial shop, or an electrical system. Whether it is the electrical system of home distribution box, commercial shop or industrial plant, you can find the appropriate pole number configuration to achieve accurate protection and optimise the safety and reliability of the electrical system.
Wide Current Adaptation Range: The rated current is set from 1A to 60A, which can accurately match all kinds of electrical equipment with different power. From low-power electronic equipment and lighting fixtures to high-power industrial machinery and large air-conditioning units, circuit breakers with corresponding current specifications can be selected to ensure stable power supply within the range of normal operating current of the equipment, and cut off the circuit in time when the current rises abnormally, avoiding protection failure or false action caused by current mismatch, and improving the pertinence and effectiveness of electrical protection.
Reliable leakage detection technology: adopting advanced leakage detection principle and high sensitivity sensor, it can quickly and accurately detect small leakage current, and the leakage action current value is in line with the national standard, which ensures a quick response in the occurrence of leakage danger, effectively preventing electric shock accidents triggered by leakage, and providing a strong safeguard for the safety of people's lives, especially suitable for humid environments, bathrooms, kitchens and other places where leakage risks are prone to occur. It is especially suitable for wet environments, bathrooms, kitchens and other places prone to the risk of electric leakage.
Convenient operation and maintenance: simple and intuitive operation, the switch handle is designed in accordance with ergonomics, which makes it easy for users to perform closing and breaking operations easily, and through the position of the handle and the indication marking, they can clearly understand the working status of the circuit breaker (closing, breaking, fault tripping, etc.). Convenient maintenance, regular inspection of contact wear and cleaning surface dust can be, without complex professional tools and technology, reducing the cost of use and maintenance difficulty, convenient for users daily use and long-term maintenance.
3. Product use scene
Family electric protection: In the distribution box of family houses, it is used for lighting circuit, socket circuit, kitchen electric circuit, bathroom electric circuit in each room, and the special circuit of air-conditioner, refrigerator, washing machine and other high-power electric appliances. Different areas and electrical appliances select DZ47LE circuit breakers with appropriate poles and current specifications according to their power sizes and characteristics of electricity consumption, such as 1P+N or 2P 10A-20A circuit breakers for general lighting and sockets, 2P or 3P 20A-32A for air conditioners and electric water heaters, and 3P+N or 4P 32A-60A for three-phase power supply of electric heaters or household small lifts. When overload, short-circuit or leakage occurs in the family circuit, the circuit breaker will act quickly to protect the safety of family electricity, prevent electrical fire and electric shock accidents, and ensure the life and property safety of family members and normal living order.
Application in commercial places: It is suitable for the protection of electrical system in all kinds of commercial places, such as shops, restaurants, offices, hotels, shopping malls and so on. Commercial places have a wide range of electrical equipment, including lighting fixtures, office appliances, commercial equipment (such as cash registers, refrigerated display cabinets, lifts, central air-conditioning, etc.) and various types of socket circuits, etc., the security and stability of the power supply requirements are extremely high.DZ47LE earth leakage circuit breaker can be based on the different areas and equipment for the power needs for a reasonable configuration, to ensure that each branch of the circuit are effectively overloaded, Short-circuit and leakage protection, to prevent an electrical fault affecting the normal operation of the entire commercial premises, reduce the economic losses caused by power outages and interruptions in business activities, to provide reliable power for commercial business activities, to enhance the safety and competitiveness of commercial premises.
Industrial production environment: In the industrial field, it is widely used in factory production equipment, production lines, power systems, lighting systems and various industrial control circuits. Industrial equipment usually has high power, complex electrical control system and harsh working environment, and is prone to electrical faults such as overload, short circuit and leakage, etc. DZ47LE series circuit breakers with multiple poles and high current specifications (e.g., 3P, 3P+N, and 4P 40A - 60A) can meet the needs of industrial equipment, and its reliable protection can effectively prevent the damage of equipment, production interruption caused by electrical faults in the process of industrial production. Its reliable protection performance can effectively prevent equipment damage, production interruption, product quality problems and personnel electrocution accidents caused by electrical faults in the industrial production process, ensure the continuity, stability and efficiency of industrial production, reduce the production costs and operational risks of enterprises, and provide a solid foundation for the safe production and sustainable development of industrial enterprises.
4. Product use instructions
Preparation before installation:
Check the appearance of the circuit breaker for defects such as damage, deformation, contact oxidation, shell cracks, etc. If there is any problem, contact the supplier for replacement in time to ensure that the quality of the DZ47LE earth leakage protection circuit breaker used is intact.
According to the actual application scenario and the design requirements of the electrical system, determine the required number of circuit breaker poles and current specifications, and prepare suitable installation tools, such as screwdrivers, wrenches, sharp-nosed pliers, wire strippers, etc., to ensure that the precision and applicability of the tools, so as to avoid damage to the circuit breaker during the installation process.
Installation and connection:
Install the DZ47LE circuit breaker on the rail of the distribution box or distribution cabinet, ensure that it is firmly installed without looseness. Connect the power and load wires correctly according to the wiring plan of the electrical system. For 1P+N and 2P circuit breakers, usually connect the fire line to the terminal labelled ‘L’ and the zero line to the terminal labelled ‘N’; for 3P and 3P+N circuit breakers, connect the three-phase fire line to the corresponding ‘A’, ‘B’, ‘C’ terminals respectively. For 3P and 3P+N circuit breakers, connect the three-phase fire wires to the corresponding ‘A’, ‘B’ and ‘C’ terminals respectively, and the zero wire to the ‘N’ terminal (if any); for 4P circuit breakers, connect the three-phase fire wires and zero wires to the corresponding terminals respectively. For 4P circuit breaker, connect the three-phase fire wire and zero wire to the corresponding terminals respectively. In the process of connection, pay attention to the correctness and firmness of the wiring to avoid wrong wiring or false connection. After the wiring is completed, use a screwdriver to tighten the screws on the terminals to ensure that the wires are in close contact with the terminals, to prevent heat, fire or failure due to poor contact.
Debugging and Testing:
After completing the installation and wiring, close the circuit breaker to check whether it can work properly. You can use professional electrical testing instruments, such as multimeters, leakage protector testers, etc., to measure and test the voltage, current, leakage protection function and other parameters of the circuit, to ensure that the circuit is normally energised and that the circuit breaker can accurately monitor and protect the circuit. First of all, test the leakage protection function, press the leakage test button, observe whether the circuit breaker can quickly trip to cut off the power supply; then test the overload protection function by gradually increasing the load current until it exceeds the rated current of the circuit breaker to see whether the circuit breaker can act in the specified time; finally simulate the situation of a short circuit to check whether the short-circuit protection function is normal. If problems are found, the wiring, current setting and internal structure of the circuit breaker should be checked in time for corresponding adjustment and repair.
Precautions for use:
Regularly check and maintain the circuit breaker to see if there is any abnormality in its appearance, such as heat, smoke, odour, discolouration of the shell and so on. At the same time, check the wear of the contacts, if the contacts are found to be severely worn or ablated, the contacts or the whole circuit breaker should be replaced in time to ensure its normal opening and closing performance and protection function. It is generally recommended to carry out a comprehensive inspection and maintenance every certain period of time (e.g. half a year or one year), and the specific time interval can be determined according to the actual use environment and frequency.
