PV Next combiner box

PV Next – Next generation combiner boxes

With PV Next, Weidmuller offers the world’s first combiner box concept based on a standardized printed circuit board design.

This concept is not only very robust, but also reduces the use of materials such as copper and plastic by 25%. At the same time, the design enables an easy, fast and safe installation. The integrated PUSH IN technology, for example, reduces installation times and minimizes the risk of errors and the resulting consequences.

Many different variants for commercial and residential buildings from stock

PV Next protects the PV system against overvoltages and short circuits and also offers the option of combining strings. The various designs are available to protect all string inverters available in the European market. Find the matching combiner box for the most common inverter types below or find more variants in our Combiner Box Product Selector.

Selection guide for combiner boxes

German Design Award Gold for PV Next

Our flexible and compact PV Next combiner box was honored with the German Design Award 2023 in Gold. A modular design, safe thermal and mechanical functionality of all components and flexible connection types are just some of the advantages that make installation, maintenance and monitoring with PV Next easy.

New products

Highlight

PV next Fireman Switch with overvoltage protection

Combining PV strings, protection against overvoltage and automatic shutdown in case of a fire

The PV Next Fireman Switch automatically disconnects PV modules from the grid in case of a fire.

Simple and space-saving installation
Energy-saving, fully autonomous switching on and off
Efficient combination of strings with cable savings of up to 50%
Standard variants available from stock, further variants available within 6 weeks
Two functions, one compact design: variants with integrated overvoltage protection

To the landing page

PV Next Mini 2 MPP

Compact DC combiner box variants for rooftop applications

The new product variants combine all pf the advantages of our PV Next range with a unique space-saving design.

Highly compact dimensions for space-saving installation
Core range available now and in stock
Suitable solutions for all inverter types in Europe
15 A pro Sting / 1100 V

To the product catalog

Your benefits at a glance

Easy

The unique PCB design allows for quick and easy integration of additional functions. For example, a switch can be integrated or a second MPPT can be connected directly to the first PCB.

Quick

With the PUSH IN connection technology, PV-Next offers the most straightforward and safest connection concept for cabling. Installation requires no crimping or special tools.

Safe

The intuitive design and PUSH IN connection technology make installation safer and quality assurance easier. The risk of screw connections with incorrect torque is eliminated – this risk is one of the main causes of fires.

Combiner Boxes – The most innovative concept for string inverters

Fits all inverter types

The product portfolio is designed to protect string inverters with 1 to 12 MPP trackers, and covers all common inverters available on the market.

Fused and non-fused

The fused version is optional for protecting the panels from reverse current. The PCB without additional fuses is slimmer.

Surge protection

All boxes protect your panels or inverters from surges. Type 1 arresters serve as standard protection on the PCB.

PUSH IN connection on board

Integrated, maintenance-free PUSH IN technology for the inputs/ outputs significantly reduces working time and susceptibility to errors.

Plug & Play connection

Choose the WM4 C connection for the ready-to-use box and reduce your operation time significantly. The other option is to choose cable glands for custom wiring.

Switch on request

For many solar engineers, it is important to have a switch on the box. It is not necessary in other areas. It’s your choice!

Variable string bundling

With our cable grafting variants, you decide whether you want to bundle the strings or whether you want to remove the same number again. The sealing set that is included covers both options.

Covers all requirements

From 2 IN, over 2 MPPT up to 6 MPPT or 6 IN-1 OUT up to 6 IN-6 OUT – we can now cover every requirement with our boxes.

To the product catalog

Selection guides for combiner boxes and practical tips

Are you looking for solutions to increase the efficiency of your photovoltaic installation projects? This section provides an overview of the right products for reliable protection in commercial and residential buildings. Find out more about our PV combiner boxes, surge protection, tools, and the fitting products for different inverter types.

Perfect combination

Find the matching PV Next Combiner Box for your inverter type

TECH TALKs & Webinars

Video content to support your installation

In our TECH TALK, we focus on a short and simple solution that meets the needs of installers. Our webinars offer deeper insights and more thorough knowledge on the topic.

Frequently asked questions

FAQs

In our FAQ, our experts answer frequently asked questions on PV installation.

More products for commercial and private buildings

Simplifying installations

With our extensive portfolio of products and solutions for building installation, electrical installers are well prepared for all applications.

Combiner box. Easy. Fast. Safe.

Weidmuller PV solutions for rooftop installations – our contribution and offering at a glance.

Efficiency with a standardized, extendable design Product innovation

PV Next is the first combiner box in the world based on a standardized printed circuit board design.

The standardized concept teaches the installer. Customizing is not necessary and project times are shortened. Easy. Fast. And safe.

Efficiency with a standardized, extendable design

The new benchmark for residential and commercial combiner boxes

Scalable and extendable design
Easy installation without crimping or special tools
Avoidance of wrong connections and reduction of risks
Portfolio is always available
Simplicity + time savings + security = reduction of the total cost of ownership

The PV Next combiner boxes trailer

PV Next is the new benchmark for residential and commercial combiner boxes. See how easy, fast and safe it is!

Connection examples of combiner boxes for solar engineers

Trust in tested quality

Our laboratory ensures the highest product quality

Our laboratory is accredited in accordance with international standards. It operates independently and is recognized by institutions, registration services, and other agencies and authorities. As a member of the CTDP program, Weidmuller is regularly audited by UL, especially with regard to our testing methods, quality management, and documentation.

PV Next combiner boxes are tested according to IEC 6 1439-1/2. This ensures that each of the requirements of the target application is fully met.