China 3 Pole DIN Rail Non Polarized Mini Circuit Breaker Switch for DC Solar Generation C Curve with TUV Certificates

The JB is a DC circuit breaker dedicated to multi string photovoltaic installations.

Storage -40 to 85 degree

- 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.
- To ensure the safety of the installation, it is necessary, depending on the various types of application, to combine the JB with:
a residual current device at the AC end
a fault passage detector (insulation monitoring device) at the DC end
an earth protection circuit breaker at the DC end
- In all cases, fast action on site will be required to clear the fault (protection not ensured in the event of a double fault).
- JB is not polarity sensitive: (+) and (-) wires can inversed without any risk.
- The JB is: delivered with three inter-pole barrier to provide increased isolation distance between two adjacent connectors.

Main characteristics

Operating Voltage (Ue)1P=250 V DC, 2P=500 V DC
3P=750 V DC, 4P=1000 V DCRated insulation voltage (Ui)1,000 VDCBreaking capacity (Icu)10 kAImpulse voltage (Uimp)4 kAElectrical connectionBy the bottom for In and OutNumber of poles1P, 2P, 3P, 4PStandardsIEC 60947-2
EN 60947-2

Rated service breaking capacity (Ics)100% of the IcuEndurance (O-C)Electrical1,500 cycles (where L/R=2 ms)Mechanical20, 000 cycles Mechanical20, 000 cyclesDegree of pollution2CategoryA (no delay in accordance with IEC / EN 60947-2 standards)Degree of protection
(IEC 60529)IP40TropicalisationRelative humidity: 95% at 55 degree in accordance with
IEC 60068-2 and GB 14048.2 standardsTemperatureOperating-25 to 70 degreeStorage-40 to 85 degree

AMP: 1A,2A,3A, 4A,6A, 10A, 15A,16A,20A, 25A,32A,40A, 50A, 63A