DC Solar PV MCCB

This 2-pole DC plastic case circuit breaker (MCCB) is specially designed for photovoltaic DC circuits, with a rated DC voltage of 500V, and provides two rated current specifications of 125A and 250A.
As the core protection device of the photovoltaic system, it provides overload and short circuit protection for the DC power supply circuit.
It is widely used by photovoltaic installers and EPC engineers in photovoltaic combiner boxes, inverter DC input terminals, and energy storage battery systems.
It can be used as a maintenance isolation switch to facilitate technical personnel to disconnect the photovoltaic string during on-site inspection and equipment maintenance to ensure the safety of operations.
It can provide unbranded bare metal supply, adapt to the OEM/ODM procurement needs of photovoltaic projects, and support 4 such small-batch trial orders.

The thermosetting plastic shell shell and silver alloy contacts are used, which has excellent arc extinguishing performance and can quickly cut off the DC fault current.

Equipped with a thermomagnetic tripping mechanism: The thermal tripping is used for long-term overload protection, and the magnetic tripping can act instantly on short-circuit faults.

The sturdy plastic case shell is impact-resistant and not easy to deform, complies with IEC 60947-2 standard, can withstand continuous DC load, and operates stably.

It is specially optimized for DC arc extinguishing, which is different from ordinary AC circuit breakers, and effectively reduces the risk of arc residue in photovoltaic DC circuits.

The installation structure is simple, saving on-site wiring working hours and improving the installation efficiency of the construction team.

Can provide non-logo supply, suitable for traders and engineering contractors to purchase unbranded electrical components.

Applicable Environment

It is suitable for grid-connected and off-grid photovoltaic projects, including commercial rooftop photovoltaic, ground photovoltaic power plants, and energy storage battery systems.

Working ambient temperature: -25℃ ~ +70℃, it can operate stably in outdoor power distribution cabinets, photovoltaic combiner boxes, and indoor DC power distribution cabinets.

It is widely used in photovoltaic projects in Europe, Southeast Asia, the Middle East and Africa.

It is not recommended to be used directly in environments with strong corrosive gases and high salt spray; if it needs to be used in such environments, a sealed protective cabinet must be installed.

Typical application scenarios: photovoltaic DC power distribution, battery pack protection, off-grid power stations, DC UPS systems.