250A 600V DC MCCB – Moulded Case Circuit Breaker for Heavy-Duty PV Systems
This 250A 600V DC moulded case circuit breaker (MCCB) is engineered for high-current DC applications, including PV combiner boxes, battery energy storage systems (BESS), and industrial DC distribution panels. Featuring an adjustable thermal-magnetic trip unit and a rated breaking capacity of 25kA, it delivers reliable overcurrent and short-circuit protection in demanding solar environments.
Key Features
1.250A High Current Capacity – Handles heavy DC loads in large-scale PV systems
2.600V DC Rated Voltage – Suitable for 1500V system configurations (2P in series)
3.25kA Breaking Capacity (Icu) – Safely interrupts high fault currents
4.Adjustable Thermal-Magnetic Trip – Field-adjustable protection settings (Ir, Im)
5.Front-Operated Mechanism – Easy manual operation with clear status indication
Applications
PV Combiner Boxes：Main DC protection for high-capacity combiner boxes in utility-scale solar farms
Battery Energy Storage Systems (BESS)：DC-side protection for battery racks and PCS inputs in containerized storage
Inverter DC Input Protection：Main breaker for central/string inverter DC inputs
Industrial DC Distribution： Protection for DC motors, rectifiers, and industrial control panels
Off-grid Solar Systems：High-current DC protection for remote mining, telecom, and rural electrification
EV Charging Infrastructure：DC busbar protection for fast-charging stations
