A circuit breaker refers to a switching device that can close, carry and break current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Circuit breakers can be used […]
DC SPD applied to the Din rail type protects the DC electric system from surge. Also, the system allows replacement of the protective element (MOV), ensuring convenience and reduced cost. However, as only the protective module is provided, other components should be added when the system is installed in accordance with the site condition.
The fusewas invented by Edison more than 100 years ago to protect the expensive incandescent lamp. With the development of The Times, fuses protect electrical equipment from the current overheating injury, avoid electronic equipment due to internal failure caused by serious injury. When electric current flows through a conductor, the conductor will heat up because there […]
There are three differences between a DC fuse and an AC fuse (1) In the case of DC transmission, ac systems on both sides do not need to run synchronously, while AC transmission must run synchronously. When ac power is transmitted over a long distance, the phase difference between the two ends of the ac power transmission […]
Dc fuse is a very easy to use protection facilities, when the abnormal circuit is often accompanied by rising current, the rising current will not only damage some key equipment, but also burn the circuit, cause a fire and directly cause great economic losses. After the DC fuse is installed, when the current exceeds the current value that […]
Calculating the appropriate fuse or breaker size for a branch circuit is straightforward. For most applications, an overcurrent device should be sized about 125% of the load’s rated amperage. This way, your load will be protected from electrical short-circuit.
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