The rated operating voltage can reach DC12OOV, and the rated operating current can reach 125A, which is used for isolation, overload, and short circuit protection. It is widely used in photovoltaic, industrial, civil, communication, and other systems, and can also be used in DC systems to ensure the reliable operation of DC systems. Technical data Pole: 4P Frame grade: 125 Rated working voltage VDC: 4P 1200VDC Rated current ln(A): 80,100,125 Rated insulation voltage Ui (V DC): 1200 Rated impulse voltage Uimp (KV): 4 Ultimate breaking capacity lcu (KA) (T =4ms): 6 Operation breaking capacity lcs (KA): lcs=100%Icu Tripping type: Thermal-magnetic Curve Type: C Mechanical life: 10000 times. Electrical life: 2500 times. Polarity: Heteropolar Working temperature: -20 C to +70 C Altitude(m): 2000m Pollution degree: Level 3 Protection degree: IP20 Installation environment: Places without significant vibration and impact Installation method: DIN35 standard rail Wiring capacity: 16-50 mm2 Terminal torque: 3.5 N·m Product size(mm) : 4P:74*108*80 Standard: IEC/EN 60947-2, EU ROHS environmental protection requirements. Quality Certificates: CE, ISO 9001, RoHS