MQ1M series DC MCCB is used in PV solar systems. We have six different sizes for this DC molded case circuit breaker, they are MQ1M-125, MQ1M-250, MQ1M-400,MQ1M-630, MQ1M-800, and MQ1M-1250. We can make 1P 2P 3P and 4P,current can make from 16A up to 1250A. Voltage range from DC 550V up to DC1500V. This PV MCCB meets the standards of IEC 60947-2, IEC60947-1, GB 14048.1, and GB 14048.2.