1. Product core introduction
DZ108-20 3VE series circuit breaker, with current range of 0.4A - 20A, suitable for circuits of 380V/660V voltage level, is a product designed for motor protection. The circuit breakers can provide reliable protection for motors, effectively respond to overload, short circuit and other electrical faults, widely used in industrial machinery, pumps, conveyor systems and other types of motor-driven equipment, to ensure the safe and efficient operation of the motor, is the key guarantee for the stable operation of the motor.
2. The main characteristics of the product
Wide voltage adaptability: it can work stably under two common industrial voltage levels, 380V and 660V, and can meet the voltage requirements of different industrial scenarios and equipment. Whether in the standard three-phase four-wire 380V power supply system or in some specific industrial environments used in the 660V high-voltage system, it can ensure the normal operation of the circuit breaker and the effective protection of the motor, with strong versatility and adaptability, reducing the risk of equipment failure due to the mismatch of voltages, and providing a guarantee of the reliable operation of the motor in the different voltage environments.
Accurate current protection range: the current adjustment range is from 0.4A to 20A, which can accurately match motors of various power sizes. Whether it is small industrial auxiliary motors, such as small ventilators, stirring motors, etc., or medium-sized power motors, such as water pump motors, small compressor motors, etc., you can choose the appropriate circuit breaker specifications according to the rated current of the motor, to ensure that the circuit breaker can supply power stably when the motor is in normal operation, and when the motor is overloaded or other abnormal conditions, and the current exceeds the set value, it can quickly and accurately cut off the circuit to prevent the motor from being overloaded for a long period of time, and prevent the motor from being overloaded. When the motor is overloaded and the current exceeds the set value, it can quickly and accurately cut off the circuit, preventing the motor from being damaged due to prolonged overloading, providing accurate current protection for the motor and prolonging the service life of the motor.
Comprehensive motor protection function: with overload protection, short circuit protection and other protection functions, it can protect the motor from all kinds of electrical faults in an all-round way. When the motor overload occurs, the circuit breaker will act within the specified time according to the built-in overload protection characteristic curve to cut off the power supply, avoiding the motor from burning due to overheating; once the circuit has a short-circuit fault, the circuit breaker can instantly trip and quickly cut off the short-circuit current, preventing the short-circuit from causing serious damage to the motor and the whole electrical system, effectively guaranteeing the safe operation of the motor, reducing the incidence of motor faults, reducing the Maintenance costs and downtime, improve production efficiency.
3. Product use scene
Industrial production equipment: In all kinds of industrial manufacturing enterprises, it is widely used in the motor protection of various production equipment, such as machine tools, injection moulding machines, stamping presses, cranes, conveyor belts and so on. The motors of these equipments are prone to overloading, short-circuit and other electrical faults during operation due to load changes, frequent starting and stopping, etc. DZ108-20 3VE circuit breakers can cut off the faulty circuits in time and efficiently according to the actual operation of the motors, protect the motors from damages, ensure the continuity and stability of the industrial production, reduce the production stagnation and economic losses due to the equipment faults, and improve the production efficiency of the enterprises. Improve the production efficiency of enterprises.
Industrial pump equipment: used for industrial water pumps, oil pumps, chemical pumps and other pump motor protection. When the pump equipment is running, the motor may be overloaded due to clogging of pipes, change of medium viscosity, wear of motor bearings, etc. The circuit breaker can monitor the motor current in real time. The circuit breaker can monitor the motor current in real time, and act quickly when the current rises abnormally, preventing the motor from burning due to overload, safeguarding the normal operation of the pump equipment, maintaining the stability of the liquid conveying and circulating in the process of industrial production, and avoiding production accidents and environmental pollution and other problems caused by the pump failure.
Industrial ventilation and refrigeration system: It plays an important role in the motor protection of ventilation equipment (such as large exhaust fans and ventilators) and refrigeration equipment (such as chillers and air-conditioning units) in industrial plants. These equipments usually need to run continuously for a long time, which requires high reliability of the motors.DZ108-20 3VE circuit breaker can provide reliable protection for the motors, prevent the motors from shutting down due to electrical failure, ensure the normal operation of ventilation and refrigeration systems, and provide suitable air circulation and temperature control for the industrial production environment, so as to ensure the smooth progress of the production process and the stability of the product quality.
4. Product use instructions
Precautions for use:
Regularly inspect and maintain the circuit breaker to see if there is any abnormality in its appearance, such as heat, smoke, odour, discolouration of the casing and so on. At the same time, check the wear and tear 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 tripping performance and protection function. It is generally recommended to carry out 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.
When operating the circuit breaker, the correct operation method should be followed to avoid damage to the circuit breaker caused by barbaric operation. Before closing the circuit breaker, make sure that there is no short-circuit, grounding or other faults in the motor and the related wiring; after breaking the circuit breaker, wait for a certain period of time (usually a few minutes) before carrying out the closing operation, in order to avoid the danger caused by the residual charge present in the circuit. In addition, do not force the circuit breaker to close when it is in a faulty tripping state; remove the cause of the fault first and ensure that the motor and circuit are restored to normal before carrying out the closing operation.
Avoid the circuit breaker to be affected by humidity, high temperature, corrosive gases, strong vibration and other harsh environments. If the installation environment is poor, corresponding protective measures should be taken, such as installing protective cover, ventilating device, vibration-damping pads, etc., in order to prolong the service life of the circuit breaker and ensure the stability of its performance. At the same time, attention should be paid to avoid the accumulation of debris around the circuit breaker, to keep its surrounding environment neat and well-ventilated, to facilitate heat dissipation and operation and maintenance. In addition, when the working environment or operating parameters of the motor change (e.g. replacing the motor, changing the power supply voltage, etc.), the current setting value and voltage level of the circuit breaker should be reassessed for appropriateness, and adjusted in time if necessary to ensure that the circuit breaker can continue to provide effective protection for the motor.
