String combination and surge protection built for large-scale outdoor solar arrays.
Our Solar DCDB units are made for permanent exposure in open-field conditions. Enclosures are supplied in polycarbonate or 1.5 to 2.0 mm CRCA sheet at IP65, sealed against dust and monsoon ingress and rated for 45 degrees Celsius ambient. Every unit is dielectric and insulation-resistance tested before dispatch.
A solar DCDB combines the output of multiple photovoltaic strings into a single DC feed to the inverter while protecting each string separately. Units are rated for 1000 V and 1500 V array voltages and use 10 x 38 gPV fuses sized for photovoltaic duty, with Class-II surge protection devices guarding against lightning transients travelling down the array. String monitoring is available as an option, allowing the performance of individual strings to be tracked without a site visit.
Straight answers to common questions about the Solar DCDB.
It combines the output of multiple photovoltaic strings into a single DC feed to the inverter, with string fuses and surge protection on the way.
Both combine and protect DC circuits. The Solar DCDB is the string combiner built for permanent exposure in open field solar arrays, at IP65 in polycarbonate or CRCA sheet. The DCDB panel is the wider DC distribution board for solar arrays and battery storage, offered at IP45 or IP65.
The specification lists 10 x 38 gPV fuses. gPV fuses are made for photovoltaic DC circuits, and their voltage rating has to sit above the string open circuit voltage at the lowest cell temperature you expect.
The specification lists a Class II surge protective device with the string fuses. The earth connection of a surge device should be short and direct, because a long earth lead adds voltage during the surge and defeats the purpose.
Yes. It is supplied at IP65, sealed against dust and monsoon ingress, in polycarbonate or 1.5 to 2.0 mm CRCA sheet and rated for 45 degrees Celsius ambient. Every unit is dielectric and insulation resistance tested before dispatch.
Send the number of strings, the string open circuit voltage and current, the module datasheet, the inverter input details and the site conditions.
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