TAIXI Solar MCCB 500V 1000V 1500V DC Photovoltaic Circuit Breaker 150A-600A

TAIXI Solar MCCB DC Voltage and Load Specifications

The TAIXI Solar MCCB offers voltage flexibility with 500V, 1000V, and 1500V DC rated poles, permitting configurations across utility-scale string arrays, battery banks rated up to 1500V, and hybrid systems combining photovoltaic and energy storage. Current ratings span 150A, 200A, 300A, 400A, and 600A per pole, accommodating combiner box main switches and array disconnect applications where conventional AC breakers cannot reliably interrupt DC photovoltaic or battery loads. The DC24V shunt release integrates a solenoid trip mechanism powered by station batteries or photovoltaic output, enabling instantaneous DC circuit isolation during fault conditions or maintenance without manual handle operation from the breaker location. Thermal-magnetic trip curves match IEC 60898-1 Class C or D characteristics depending on configuration, protecting conductors against both overload and short-circuit faults across the full voltage and current envelope. The photovoltaic isolator design in the Solar MCCB meets UL 4185 arc-extinction requirements specific to DC photovoltaic service and combines shunt release coordination with molded-case frame rigidity for industrial-duty reliability in harsh outdoor solar installations.