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The DC molded case circuit breaker (MCCB) is specifically designed for photovoltaic systems and DC power distribution applications. With rated currents of 63A, 100A and 125A options, this breaker provides reliable overcurrent protection for DC circuits up to 1000V.
Featuring a compact design with 2-pole configuration, the MCCB offers excellent performance in various environmental conditions with an operating temperature range from -25°C to +50°C. The white-colored housing provides IP20 protection against solid objects while maintaining a clean aesthetic appearance.
This DC circuit breaker utilizes air as the arc-extinguishing medium and incorporates BCD curve characteristics for optimal protection coordination. The instantaneous tripping value is set at 20 times the rated current (20ln) to ensure quick response to short circuit conditions.
Manufactured in compliance with international standards including IEC 60947-2, IEC 60947-1, GB 14048.1 and GB 14048.2, the product holds multiple certifications such as CE, CB, CCC and VDE. The fixed-type installation design ensures secure mounting in electrical panels and distribution systems.
Common applications include solar power systems, DC power distribution, battery storage systems and other renewable energy installations requiring reliable DC circuit protection. The product's flashover distance of ≥50mm provides additional safety margin for high voltage DC applications.
