Molded case circuit breakers are also known as device type circuit breakers. All components are sealed in a plastic housing. Auxiliary contacts, undervoltage release and shunt release are modular. Due to the very compact structure, the molded case circuit breaker is basically inaccessible. It is mainly manual, and large capacity can be selected for power supply. Due to the application of electronic overcurrent trip, molded case circuit breaker can also be divided into class A and class B. class B has good protection characteristics, but due to price factors, thermal magnetic release is used. Class a products have a high market share.

塑壳断路器在塑料外壳中配备有触点，灭弧室，跳闸单元和操作机构，通常不考虑维护，适用于分支电路的保护开关和过电流释放装置有一个热磁场。无论是型式还是电子式，一般的热磁塑壳断路器都是非选择性断路器，只有过载长延时和短路瞬时保护。电子塑壳断路器具有过载长延时和短路。四种保护功能：延迟，短路瞬态和接地故障。一些新的电子塑壳断路器还具有区域选择性链功能。大多数塑壳断路器是手动操作的，有些具有电机操作机构。

The molded case circuit breaker is equipped with contacts, arc extinguishing chamber, tripping unit and operating mechanism in the plastic shell. Generally, maintenance is not considered. The protective switch and overcurrent release device suitable for branch circuit have a thermal magnetic field. Regardless of the type or electronic type, the general thermal magnetic molded case circuit breaker is a non selective circuit breaker with only overload long-time delay and short-circuit instantaneous protection. The electronic molded case circuit breaker has overload, long time delay and short circuit. Four protection functions: delay, short circuit transient and ground fault. Some new electronic molded case circuit breakers also have area selective chain function. Most molded case circuit breakers are manually operated, and some have motor operating mechanisms.

工作条件

Working conditions

环境空气温度

Ambient air temperature

环境空气温度上限+ 40°C;环境空气温度下限-5°C;

Upper ambient air temperature + 40 ° C; Lower limit of ambient air temperature - 5 ° C;

环境空气温度24h的平均值不超过+ 35°C。

The average value of ambient air temperature for 24h shall not exceed + 35 ° C.

海拔高度:安装地点的海拔高度不超过2000米。

Altitude: the altitude of the installation site shall not exceed 2000 meters.

大气条件：当环境空气温度为+ 40°C时，大气的相对湿度不超过50％;它可以在较低的温度下具有较高的相对湿度;最湿月份的月平均最大相对湿度为90％，而月份每月最低温度为+ 25°C，考虑到由于温度变化而在产品表面发生的冷凝。

Atmospheric conditions: when the ambient air temperature is + 40 ° C, the relative humidity of the atmosphere shall not exceed 50%; It can have higher relative humidity at lower temperature; The monthly average maximum relative humidity in the wettest month is 90%, while the monthly minimum temperature in the month is + 25 ° C, taking into account the condensation on the product surface due to temperature change.

污染等级:污染等级为3极。

Pollution level: the pollution level is 3 poles.

型号：

model:

T1T2T3T4T5T6T7S8

T1T2T3T4T5T6T7S8

结论：关于abb塑壳断路器今天小编就这么说了，这台断路器在我们的工业生产中很常见，所以我们从来没有听说过它在日常生活中也就不足为奇了。但是在这篇文章中做一个简单的理解是没有害处的，也许我们将来会使用它。那么我们生活中通常会使用什么断路器呢？我们在日常生活中使用称为空气开关的断路器。

Conclusion: that's what Xiao Bian said about ABB molded case circuit breaker today. This circuit breaker is very common in our industrial production, so it's not surprising that we have never heard of it in our daily life. But there is no harm in making a simple understanding in this article. Maybe we will use it in the future. So what circuit breaker do we usually use in our life? We use circuit breakers called air switches in our daily life.

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The above is ABB molded case circuit breaker agent http://www.jntongyu.com Thank you for checking the information of our company in your busy schedule. If you want to know more, you are welcome to call for consultation!