According to the latest data released by the international market research organization Markets and Markets, the global circuit breaker market will reach US$8.7 billion by 2022, with a compound annual growth rate of 4.8% during the period.
At present, circuit breakers are mainly used to distribute electric energy, control and protect electric current, involving all walks of life in national life, the most important of which are electric power, real estate, and industrial manufacturing. With the continuous expansion of the State Grid's investment and the gradual advancement of township and rural electrification projects, the demand for domestic circuit breakers has continued to increase in recent years.
Is the circuit breaker an air switch?
1. Different control modes. The
air switch will only open when the circuit is short-circuited; the circuit breaker will only open when someone accidentally touches the circuit and causes an electric shock.
2. The difference in voltage level
Generally, the applicable voltage level of air switch is below 500V, while circuit breaker can usually be applied to various voltage levels above 220V.
3. Different protection levels. The
air switch is over-current protection, so it belongs to the safety level, while the circuit breaker belongs to the milliampere level. Because it needs to cut off the power in time to prevent someone from getting an electric shock, the level is higher than that of the air switch.
4. The difference between arc extinguishing media and methods The arc extinguishing media and methods of
circuit breakers include not only air circuit breakers, but also vacuum circuit breakers, oil-rich circuit breakers, oil-less circuit breakers, and sulfur hexafluoride circuit breakers.
5. The ability of interrupting current is different.
Generally, the load and short-circuit current that the circuit breaker can bear are larger.
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