Weidmuller USA has released a new line of DC combiner boxes for the solar industry.
Weidmuller’s PV DC Combiner Boxes offer users the ability to integrate short-circuit and overvoltage protection, as well as string monitoring solutions (I,V,T and SPD and switch isolator status) for PV systems using central inverters with PV panels in trackers and fixed-tilt systems. The DC Combiner Boxes with monitoring can receive up to 16 inputs and the unmonitored version can handle up to 32 inputs.
By using advanced 3D software, the product variants have been designed and tested to operate at the maximum mechanical and thermal efficiency in the most compact housing site. The new product line also features cost-optimized models with special accessories designed to cover the most common applications in PV power plants.
Weidmuller also has combiner boxes for high-power, bifacial panels. Four new designs allow a higher current consumption due to the fuse holders used.
A wide range of these PV DC Combiner Boxes for High Power Panels are available to fit into the installation concepts with many brands of PV modules. They feature variants from four up to eight inputs with fuse protection in (+/-) poles and with gPV fuses of 22 x 65 format. With several configurations, Weidmuller offers the VPU surge protection series for 1,500 VDC systems with SPD Type I+II or Type II variants.
combiner box for high-power panels
Fuses and fuse holders are UL-listed and have been specially developed for this new architecture. Overcurrent protection from 40 up to 75 amps enables the connection of one or more strings per input.
With the planned expansion of the Weidmuller facility in Richmond, Virginia, all of these models and more renewable energy solutions will soon be produced in the United States.
“As a globally recognized solution provider for electrical connectivity, engineered enclosures, and communication infrastructure, our DC combiner boxes for standard and high-power panels are specially designed to offer exceptional performance, reliability and flexibility for solar power applications in all industries,” said Pete Tecos, head of global key account management.
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