HKel Electrical Appliances (Shanghai) Co., Ltd. is a professional low-voltage electrical appliances OEM licensing production and sales as one of the enterprises. Hangkai Professional Molded Case Circuit Breaker Manufacturer, mainly produces HKM1 Molded Case Circuit Breaker, HKM3 Molded Case Circuit Breaker, providing product maintenance, type selection, knowledge and other services. Tel: 021-57161889
Morethe difference between
air switch and circuit breaker is as follows:
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air switch generally plays the role of isolation and protection in small current, also known as automatic switch.
circuit breaker has very good arc extinguishing products, in the case of short circuit, automatic tripping, in high voltage, high current circuit, for power outage, feeding point, switching on, disconnecting operation electrical.
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air switch with voltage level is generally used in circuits with voltage below 500v, while circuit breakers can be used in circuits with voltage above 220v.
{span 0} 4 different ways of arc extinguishing
circuit breakers have not only air circuit breakers, but also vacuum circuit breakers, multi-oil circuit breakers, low-oil circuit breakers, sulfur hexafluoride circuit breakers and so on. the difference between
accessories
is more complicated for air switches.
{span 0} power-off current capacity
circuit breakers of various types, the power-off current is larger than the general open, and the power-off capacity is also larger. vacuum circuit breaker is used in 6kv circuit system and sf6 in 500kv substation. the general empty opening is used in 380/220 system, which is equivalent to a knife gate.
{span 0}working with load
circuit breaker has arc extinguishing device, so it can operate with load or short circuit current. the circuit breaker has a good sealing device, so simply observing the circuit breaker can not distinguish the real closed or open state. there is no arc extinguishing device in
open, so it can not operate with current, but the open structure is simple. from the appearance, it can be seen that its operation state
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