Company News Media Reports
Return List
What are the main applications of DC Plastic-case circuit breakers?
Time:2024-04-12 Hits:96

Dc plastic-case circuit breakers are suitable for a variety of environments, and the following is an overview of their main applicable environments:

Altitude: The elevation of the installation site should not exceed 2000m. If the altitude is between 2000m and 5000m, it needs to be modified.

Air temperature: The ambient air temperature is not higher than +40℃ and not lower than -5℃. In special cases, the temperature range may be extended, but the 24-hour average should not exceed +35 ° C. In addition, some models of DC molded case breakers can operate over a wider temperature range, such as -40 ° C to +85 ° C.

Air humidity: The relative humidity of the air at the installation site does not exceed 50% at the maximum temperature of +40 ° C, and can have a higher relative humidity at lower temperatures, such as 90% at 20 ° C. Some specific types of circuit breakers can even operate in hot and humid conditions, with higher humidity.

Media and dust: The circuit breaker should operate in a medium that is not hazardous to explosion, and the medium should not be sufficient to corrode metal and destroy insulation. At the same time, it should be resistant to the effects of salt spray, oil spray, mold, etc., and suitable for dusty environments.

Vibration and shock: DC molded case circuit breakers should be able to operate reliably under normal ship vibration and earthquake conditions (4g).

It should be noted that although the DC plastic-case circuit breaker is suitable for the above various environments, in the actual selection and use, it is still necessary to choose according to the specific application scenario, circuit parameters, rated current and voltage and other factors to ensure that it can work normally and stably, and provide effective circuit protection. In addition, when installing and maintaining circuit breakers, relevant safety standards and operating codes should also be followed to ensure the safety of personnel and the stability of equipment.


In general, DC plastic-case circuit breakers have a wide range of applications and can adapt to a variety of complex and harsh environmental conditions. For more specific information about the applicable environment, you are advised to refer to the technical specifications of related products or consult professional electrical engineers.


Dc plastic-case circuit breakers are suitable for a variety of environments, and the following is an overview of their main applicable environments:

Altitude: The elevation of the installation site should not exceed 2000m. If the altitude is between 2000m and 5000m, it needs to be modified.

Air temperature: The ambient air temperature is not higher than +40℃ and not lower than -5℃. In special cases, the temperature range may be extended, but the 24-hour average should not exceed +35 ° C. In addition, some models of DC molded case breakers can operate over a wider temperature range, such as -40 ° C to +85 ° C.

Air humidity: The relative humidity of the air at the installation site does not exceed 50% at the maximum temperature of +40 ° C, and can have a higher relative humidity at lower temperatures, such as 90% at 20 ° C. Some specific types of circuit breakers can even operate in hot and humid conditions, with higher humidity.

Media and dust: The circuit breaker should operate in a medium that is not hazardous to explosion, and the medium should not be sufficient to corrode metal and destroy insulation. At the same time, it should be resistant to the effects of salt spray, oil spray, mold, etc., and suitable for dusty environments.

Vibration and shock: DC molded case circuit breakers should be able to operate reliably under normal ship vibration and earthquake conditions (4g).

It should be noted that although the DC plastic-case circuit breaker is suitable for the above various environments, in the actual selection and use, it is still necessary to choose according to the specific application scenario, circuit parameters, rated current and voltage and other factors to ensure that it can work normally and stably, and provide effective circuit protection. In addition, when installing and maintaining circuit breakers, relevant safety standards and operating codes should also be followed to ensure the safety of personnel and the stability of equipment.


In general, DC plastic-case circuit breakers have a wide range of applications and can adapt to a variety of complex and harsh environmental conditions. For more specific information about the applicable environment, you are advised to refer to the technical specifications of related products or consult professional electrical engineers.


Previous Post: What are the advantages and disadvantages of DC plastic-case circuit breakers

Next Post: No More

©2024 Shanghai Shuoni Electric Technology Co., LTD. All Rights Reserved.