Size:32A Features: The JB is a DC circuit breaker dedicated to multi string photovoltaic installations. This circuit breaker is designed to protect the cables located between each string of photovoltaic modules and the photovoltaic inverter against overloads and short circuits (see application diagram). Combined with a switch , the JB will be installed in a string PV protection enclosure at the end of each string of photovoltaic modules. It can be locked (by a padlocking device) in OFF position as a safety measure for removal of the PV inverter. Since a fault current can flow in the reverse direction to the operating current, the JB can detect and protect against any bidirectional current. Operating voltage (Ue)1P=250 V DC, 2P=500 V DC 3P=750 V DC, 4P=1000 V DC Rated insulation voltage (Ui) 1,000 V DC Breaking capacity (Icu) 10 kA Impulse voltage (Uimp) 4 kV Electrical connection By the bottom for In and Out Number of poles 1P, 2P, 3P, 4P Standards IEC 60947-2 EN 60947-2 Rated service breaking capacity (Ics) 100 % of the Icu Endurance (O-C) Electrical 1,500 cycles (where L/R=2 ms) Mechanical 20,000 cycles Mechanical 20,000 cycles Degree of pollution 2 Category A (no delay in accordance with IEC / EN 60947-2 standards) Degree of protection Device in modular (IEC 60529) enclosure IP40 Tropicalisation Relative humidity: 95 % at 55°C in accordance with IEC 60068-2 and GB 14048.2 standards Temperature Operating -25°C to 70 °C Storage -40°C to 85°C Package Content: 1 x DC Circuit Breaker
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