PV DC combiner boxes

PV DC combiner boxes – compact, high-quality and cost-optimised

Our DC combiner boxes offer users the possibility to integrate short-circuit and overvoltage protection, as well string monitoring solutions (I,V, T and SPD and switch isolator status), for PV systems using central inverters with PV panels in trackers and fix tilt systems.

Weidmüller has a proven track record of having sold more than 150000 DC combiner boxes across all climate zones on the earth over the past 10 years. We draw on our experience and expertise in DC technology to offer high-end solutions that cover our customers’ CAPEX and OPEX requirements. Models equipped with string monitoring provide additional performance with voltage, current and temperature mesurement as well as SPD health and DC switch status. This helps to improve PR of plants and optimises the ROI.

The benefits at a glance

Standard models available in stock

Tailor-made solutions with only 4 weeks of delivery time

5-year warranty

We increase the warranty period due to the high quality of our combiner boxes

Spare parts on stock

Easy supply for O&M companies

Easy commisioning & maintenance

Products designed to reduce installation time and cost as well as future maintenance

Logistic savings

Global production locations (Malaysia, Spain and Brazil) allow cost- and time-optimised production and supply

Online selection tool

Online tool to choose the best model for each application

Optimise Your PV Plant Operation |

Weidmüller PV String Monitoring System & Weather Stations

Product features

Optimised design

By using advanced simulation 3D softwares, the product variants have been designed and tested to operate at the maximum mechanical and thermal effiency in the most compact housing size.

Longer lifetime

DC engineering expertise implemented in designs to allow longer lifetime and higher performance under extreme climatic conditions.

All technical data available online with 1-click

Weidmüller offers web tools to support on the selection of the best model for your application. Technical data and certifications are available in the Weidmüller online catalogue.

Better LCOE and ROI

Product trackrecord, bankability and reputation of our solutions simplify product due diligences, insurance contracts and even to increase value of the asset in case it is sold in the future.

Cost-optimised variants

With the new product line cost optimised models with special accessories were designed which cover the most common applications in PV power plants.

Go to product catalogue

Tested & proven PV boxes

Our laboratory ensures the highest product quality

Our laboratory is accredited in accordance with international standards. It operates independently and is recognised by institutions, registration services, and other institutions and authorities. As a member of the CTDP program, Weidmüller is regularly audited by UL, especially regarding test methods, quality management and documentation.

PV DC combiner boxes are tested according to IEC-61439-2 and are constructed on the basis of the test results as well as assembled for the specific application. This ensures that each of the requirements of the target application is fully met.

Perfect complementation

PV string monitoring system

Acquire and evaluate data for more efficiency

PV floating combiner boxes

Collect, protect and monitor DC strings in extreme environments

PV AC Combiner Boxes

Bundles and protects PV string inverters in utility-scale systems reliably and economically.

PV communication boxes

Connecting photovoltaic power plants through reliable and safe industrial communications

PV DC combiner boxes

Bundle, protect and combine PV strings efficiently