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Willmall DC MCBs protect direct-current circuits in solar, battery, and DC distribution applications, rated for DC arc interruption behaviour.
It protects a direct-current circuit from overload and short circuit, for example a PV string, battery feed, or DC distribution path.
DC current does not cross zero, so the breaker must extinguish a longer arc; the internal design is matched to the DC voltage rating.
It is used in solar combiner boxes, battery enclosures, and DC distribution boards in PV and storage systems.
It is wired into the DC path with the appropriate positive and negative side connections, typically on a DIN rail.
Rating matches the DC operating voltage, the load current, and the breaking performance required by the system.
