Surge protection on DC terminals of solar inverter

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Surge Protection Device Type 2 Solar Panel 500V

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The inverters and solar panels must be protected against surge voltages. The PV-Guard-500 is rated to 40kA and 150V, ideal for low voltage solar off-grid inverters.


PV-Guard500. Surge Protection 500V. DC Input Solar Inverter

The device is compliant with PV standard EN50539-11. The din rail mounted SPD is widely used in solar combiner boxes to protect the solar panels and inverters from surges in voltage and lightning. The protection method is high energy Varistor. 

The risk of over-voltage is direct (lightning impact) or indirect effect (over-voltage on solar panels, inverter and other connections. 

 DC network: surge protectors are necessary, sometimes mandatory, on the continuous network in between the modules and the PV inverter

Technical Parameters

Poles  3 Poles , Positive Vdc, Negative Vdc and Earth
Open circuit voltage                500V.  Max Operating: 530V
Nominal DIscharge Current:                                    20kA
Maximum Discharge Current                                   40kA
Voltage Protection Level Up                                  <3.8kV
Response Time                                  <25ns
 Operating State/Fault Indication                               Green / Red
 Standards  IEC-61643-1 & 61643-11 & EN50539-11
 Dimensions  84mm x 53.5mm
 Wire Cables  Flexible 4-16mm2


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