FAQ

When selecting a DC MCB, it is important to consider the breaking capacity required for the specific application. Residential DC MCBs typically have a breaking capacity of up to six kA, while industrial-grade DC MCBs are designed to handle higher breaking capacities. Therefore, it is essential to evaluate the application and select a DC MCB with an appropriate breaking capacity to ensure safe and reliable operation of the circuit.

DC MCBs serve as protective devices for safeguarding panels from high surge currents in DC circuits. They are typically installed upstream of inverters to provide protection in the event of a high surge current, ensuring that the panel remains safe from damage. By tripping the circuit when an excessive current is detected, DC MCBs help prevent electrical faults that could result in costly repairs or replacements.

To clarify, for solar combiner boxes with currents greater than 125A, it is recommended to use DC MCCB (moulded case circuit breaker) rated between 125A to 800A. On the other hand, if the current is below 125A, DC MCB (Mini circuit breaker) rated between 6A to 125A is suitable for use in the DC circuit breakers.

If you could provide us with your inquiry and requirements, our team of professionals will assist you in selecting the appropriate model.

We offer better prices for larger quantities, and if you're interested in a special discount, please feel free to contact us.