Noark Dual Pole DC Circuit Breaker 40A, 500V Circuit breakers DC miniature circuit breakers Ex9BP are designed for direct current, thanks to their polarity independence, especially for photovoltaic applications where some failure can change the polarity of the voltage. 1 and 2-pole versions to 250 and 500 V DC are suitable for general DC applications and small PV systems. 3 and 4-pole breakers with rated voltage to 750 and 1000 V DC mainly for bigger photovoltaic applications. Devices are offered with rated current up to 63A, rated breaking capacity 6kA (Ex9BP-N) or 10kA (Ex9BP-H), tripping characteristics C and K. Breakers can be combined with a wide range of accessories identical with circuit breakers Ex9B including auxiliary and signal contacts, shunt-trip release and under-voltage release. All accessories are mounted to device from the left side. xe2x80xa2xc2xa0Non-polarised, suitable for Photovoltaic applications xe2x80xa2xc2xa0Tested according to IEC/EN 60947-2 xe2x80xa2xc2xa0Rated short-circuit breaking capacity Icu 10kA for Ex9BP-H, 6kA for Ex9BP-N xe2x80xa2xc2xa0Rated operating voltage Ue 250V DC per pole xe2x80xa2xc2xa0With 1 up to 4 modules xe2x80xa2xc2xa0Tripping characteristics C, K xe2x80xa2xc2xa0Rated current up to 63A xe2x80xa2xc2xa0A wide range of accessories Installation: Non-Polarised: The Ex9BP-N series of miniature circuit breakers from Noark Electric, are non-polarised and available in 2 and 4 pole designs. Complies with all current Australian Standards.xc2xa0 K Type Some Electrical knowledge is assumed. If you are not familiar with DC high current circuits, you should not attempt to wire up any of these components. Employ a CEC certified off-grid solar installer to install these products for you. Energy Connections takes no responsibility for damage caused to equipment or persons as a result of improper installation with these, or any devices sold by us.