It is an important low-voltage protective device, used to automatically cut off the circuit when faults such as overload, short circuit and under-voltage occur, protecting the safety of electrical equipment and lines.
It is usually composed of a contact system, an arc extinguishing system, a trip unit, an operating mechanism and a casing, etc. It features high breaking capacity, good thermal stability, compact structure and convenient installation. It is widely applied in industrial, commercial, residential and other power distribution systems to ensure the safe and reliable operation of power supply.
Founded in 2000, we are acknowledged as one of the most respected nationwide manufacturers and exporters of low voltage CIRCUIT BREAKER in China. The company owns a production area of 13,500m² and employs more than 200 staff. During the past 20 years, we invested abundant resources in both research and development and employee training programs. The company was ranked among new high-tech enterprises. Many products are certified under international certificates, such as CE, COC, and CCC.
Currently, we have manufactured and exported more than 50 products, with low voltage electrical apparatus including all kinds of Circuit Breakers, Switches, and Electrical Accessories etc. As a result of our high-quality products and outstanding customer service, we have gained a global sales network reaching South East Asia, Middle East, South America, Africa, and Europe.
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Frequently Asked Questions
Q: What is the main function of a circuit breaker?
A: A circuit breaker is used to automatically cut off the electrical circuit when faults such as overload, short-circuit, and undervoltage occur, protecting the safety of electrical equipment and wiring.
Q: How to select a circuit breaker with an appropriate rated current?
A: It is necessary to determine based on the normal operating current in the circuit and the maximum current that may occur. Generally, ensure that the rated current of the circuit breaker is greater than the normal operating current and can withstand short-term overload current.
Q: Why does the circuit breaker trip frequently?
A: Possible reasons include circuit overload, short-circuit, leakage, or a fault in the circuit breaker itself. It is necessary to check the circuit and equipment to determine the specific cause.
Q: Is the breaking capacity of a circuit breaker important?
A: It is extremely important. The breaking capacity determines whether the circuit breaker can safely cut off the short-circuit current. One should select a circuit breaker with a suitable breaking capacity according to the maximum short-circuit current that may occur in the circuit.
Q: How long is the delivery time?
A: Custom-made products will be shipped within 15 - 30 days, and in-stock products will be shipped within 3 days. The delivery date is subject to the arrival time of the freight forwarder.
Q: What are the differences in application scenarios for different types?
A: For example, miniature circuit breakers are commonly used for terminal power distribution in households and small commercial places, while molded-case circuit breakers are suitable for power distribution lines with larger currents and motor protection.
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