How much information do you know about the DC Molded Case Circuit Breaker?

Molded case circuit breakers have the advantages of various protection functions (overload, short circuit, undervoltage protection, etc.), adjustable action value, high breaking capacity of the circuit breaker, convenient operation, and safety, so they are widely used at present. Next, let's take a closer look at the relevant knowledge of DC Molded Case Circuit Breakers!

What are the relevant parameters of DC Molded Case Circuit Breaker?

What parameters do you need to know to use DC Molded Case Circuit Breakers correctly?

What are the current application areas of DC Molded Case Circuit Breaker?

What are the relevant parameters of DC Molded Case Circuit Breaker?

Rated Frame Current (Inm): The maximum current that the DC Molded Case Circuit Breaker is rated to handle. This rated frame current defines the upper limit of the adjustable trip current range. This value determines the circuit breaker frame size.

Current Rating (In): The current rating value determines when the DC Molded Case Circuit Breaker will trip due to overload protection. This value can be adjusted to the maximum rated frame current.

Rated Insulation Voltage (Ui): This value represents the maximum voltage that the DC Molded Case Circuit Breaker can withstand under laboratory conditions. DC Molded Case Circuit Breakers are usually rated lower than this to provide a safety margin.

What parameters do you need to know to use DC Molded Case Circuit Breakers correctly?

Rated Working Voltage (Ue): This value is the rated voltage for continuous operation of DC Molded Case Circuit Breakers. It is usually the same or close to the system voltage.

Rated Impulse Withstand Voltage (Uimp): This value is the transient peak voltage of switching surges or lightning strikes that the circuit breaker can withstand. This value determines the ability of DC Molded Case Circuit Breakers to withstand transient overvoltages. The standard size for pulse testing is 1.2/50µs.

Working Short Circuit Breaking Capacity (Ics): This is the highest fault current that DC Molded Case Circuit Breakers can withstand without being permanently damaged. DC Molded Case Circuit Breakers are generally reusable after a fault interrupting operation, as long as they do not exceed this value. The higher the Ics, the more reliable the circuit breaker is.

Ultimate Short Circuit Breaking Capacity (Icu): This is the highest value of fault current that DC Molded Case Circuit Breakers can handle.

What are the current application areas of DC Molded Case Circuit Breaker?

The application of DC Molded Case Circuit Breaker is very extensive. At present, it has become a high-quality electrical component product for solar photovoltaic power generation systems, smart fire safety systems, urban smart electrical systems, power grid distribution automation, and medium and high voltage power transmission and distribution systems. DC Molded Case Circuit Breaker has obvious effect, complete functions and wide application range.

DC Molded Case Circuit Breakers do not need to pay too much money while meeting consumers' home improvement needs, so it has always been a leading product in the market. But when purchasing DC Molded Case Circuit Breakers, pay attention to their quality. Zhejiang Shilong Electric Technology Co., Ltd has various DC Molded Case Circuit Breakers that can provide the increasing of products, and make them more effective, reliable, and consistent.