Long-term profitable, effective running systems

Long-term profitable, effective running systems

Large photovoltaic parks are associated with enormous costs and risks for owners and operators. Their goal is a long-term, focused return-on-investment. Total operating costs are therefore a critical success factor. The requirement for the development and construction of today's photovoltaic systems is to operate them efficiently - economically and without downtimes. In addition, upcoming technological improvements such as decentralization, IoT and data analysis play an important role for future photovoltaic ecosystems.

Our customers benefit from our many years of experience in the photovoltaic industry, our know-how, our comprehensive range of services and our global presence. We prove this with more than 212,000 installed combiner boxes, around 125 million connected panels with 25 GW, over 12 years of market experience and our global support in more than 100 countries. We combine finely attuned components to create innovative solutions that are adapted to your individual needs.


Our product highlights:
For photovoltaic utility scale solar plants | For photovoltaic rooftop systems

As an experienced partner for photovoltaics, our customers can be sure of:

Protect our customer investments

Protect our customer investments

With innovative and future-proof solutions, applications, and services.

Support our customers

Support our customers

Through a full-range portfolio to fulfil all their specific needs and requirements.

Permanently improve our services

Permanently improve our services

To strengthen our customers as reliable partners by adressing their challenges.

Continuously develop future-proof and sophisticated solutions

Continuously develop future-proof and sophisticated solutions

To meet the upcoming technological challenges of our customers.

Rely on the highest quality production and engineering processes

Rely on the highest quality production and engineering processes

We work consistently on innovative solutions while always maintaining the business perspective of our customers.

As a customer, you benefit from our many years of experience in the photovoltaic industry, our expertise, comprehensive range of services and our global presence. Our photovoltaic specialists accompany your projects in a responsible manner - from initial planning right through to the operation of your system.

Pascal Niggemann, Head of Application Team Photovoltaic

Easy. Fast. Safe.

Easy. Fast. Safe.

Easy. Fast. Safe.

Weidmüller PV solutions for rooftop installations - our contribution and offering at a glance.

PV solutions for photovoltaic rooftop systems

PV Combiner boxes including Fireman Switch Produkt innovation

Combiner boxes including power contactors serving as a remotely controlled shutdown device for fireman protection.

PV Combiner boxes including Fireman Switch
The advantages over manual triggered switches:
  • Single shutdown with a remote switch for the entire installation without a complex installation
  • Automatic shutdown in case of triggered surge protection
  • Automatic shutdown in case of low voltage on the AC side. Firefighters normally favour this solution
  • For maximum safety, manual shutdown locally on the combin

Combiner box PV Next. Easy. Fast. Safe. Produkt innovation

PV Next is a new standardised, highly-scalable combiner box for residentials and commercial photovoltaic applications.

Combiner box PV Next. Easy. Fast. Safe.
Benefits for residential and commercial applications:
  • Covers all common inverter concepts
  • Up to 6 inputs/outputs with PUSH IN technology
  • Up to 6 MPPT variants
  • Fused or non-fused variants
  • Overvoltage protection as class I or II variant

PV Protect OVP Box

PV Protect is the solution for optimum protection of the inverter against overvoltages. The ready-to-connect boxes are available for different system voltages and can be supplied with various arrester types and MPP trackers.

PV Protect OVP Box
Benefits for residential and commercial applications:
  • Compact, space-saving design
  • Available in product variants suitable for different applications
  • Ready to connect solution in protection class IP67
  • Reliable and maintenance-free PUSH IN connection technology

PV solutions for photovoltaic utility parks

PV AC Combiner Box Produkt innovation

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

PV AC Combiner Box
Benefits for use in utility scale PV plants:
  • Fast delivery time of maximum 4 weeks
  • Optimised design to operate at the maximum mechanical and thermal efficiency
  • Designed to operate in solar power plants with high requirements of short cuircuit current.
  • Technical data available online with 1-click

PV Floating DC Combiner Box Produkt innovation

Our innovative combiner boxes for floating PV Systems collect, protect and monitor DC strings in extreme environmental conditions.

PV Floating DC Combiner Box
Benefits for use in floating PV systems:
  • Suitable for high humidity - specially designed for severity B environments according to IEC-61439-ed-2
  • Suitable for direct sunlight - can be operated in direct exposure to sunlight without the need to install an additional sun shield.
  • Suitable for PV systems in freshwater - extensively tested and certified for long-term operation under harsh environmental conditions.
  • Wide range of plug & play variants from 8 to 24 inputs - with comprehensive protection and suitable covering solutions.

PV DC Combiner Box

Bundles, protects and combines PV strings efficiently

PV DC Combiner Box
Benefits for use in utility scale PV plants:
  • Tailor-made solutions with only 4 weeks of delivery time
  • Global production locations allow cost- and time-optimised production and supply
  • DC engineering expertise implemented in designs to allow longer lifetime and higher performance under extreme climatic conditions
  • Technical data available online with 1-click

String monitoring with Transclinic xi+ Produkt innovation

Continuous surveillance of your PV system

The Transclinic xi+ series continuously monitors the power from single strings or groups of strings as well as the voltage of a Photovoltaic system and thereby permits detailed monitoring of the system. Negative influences, which lead to reduced output power, can be detected immediately allowing rapid repairs or adjustments to be made to the system.

Do not oversize your system just to ensure the output power expected. A good surveillance of the system allows to have an efficient and optimized system running easily. With a trackrecord higher than 115.000 devices sold all around the world in many different environments during the last 12 years, the quality, the robustness and the optimal performance of the Transclinic xi+ product range is ensured.

String monitoring with Transclinic xi+
Special features:
  • Various monitor options – As standard single strings with up to 16 inputs and a maximum Isc of 25Amps per input can be monitored. Nevertheless, it is possible to balance less inputs with more current (i.e. 10 inputs with Isc of 30Amps).
  • Efficient double (or even triple) string monitoring – with more than one string monitoring, two (or even three) strings can be monitored via one input. This reduces the number of connections requested and is a good compromise between single string monitoring and zone monitoring.
  • Reduction of maintenance costs – all wiring is done with PUSH-IN connectors. There is no need to check the torque as required with screw connections. No further connection testing is necessary during the entire service life of the system.
  • Reliable even under extreme conditions – Transclinic 16i+ 1k5 H allows the measurement of the current event at 70ºC with an accuracy of ±1% (voltage/current). This helps pair and triple monitoring in combiner boxes in difficult environments by using only one string monitor and optimising the cost of the solution.
  • RS485 SPD on board – A specific overvoltage protection for RS485 interfaces is already integrated to increase robustness and reliability of the device throughout its operational lifetime.

Order your free PV solutions sample box

Order your free PV solutions sample box

Get acquainted with the benefits of our PV components. From the easy usage of the PV Stick to the simple connection of wires via our PUSH IN LUF’s.

More utility-scale AC and DC combiner boxes for Photovoltaics

Efficient system operation at all levels

Efficient system operation at all levels

Efficient system operation at all levels

We develop and produce the appropriate combiner boxes for all levels of your photovoltaic system. All functional areas, from transmission and fuse protection to monitoring, are matched according to the specific application and covered with our quality products.

Level 1
Service bundling of separate strings and connection with inverter or level 2 combiner boxes and an optional integration of protection and monitoring functions

Level 2
Bundling of cables emerging from level 1 to an outgoing cable for connection to the inverter and an optional integration of protection and monitoring functions

Communication
Link between the individual components within the network. Query and bundling of all compiled information - including that from additional devices such as cameral systems or weather station

Practical installation components for easier workflows

Photovoltaic connector PV-Stick

Photovoltaic connector PV-Stick

Photovoltaic connector PV-Stick

Crimp-free wiring and uncomplicated connection with PV-Stick - the unique plug-in connector uses our tried-and-tested PUSH IN technology.

Photovoltaic connector WM4 C

Photovoltaic connector WM4 C

Photovoltaic connector WM4 C

The WM4 C is our state-of-the-art crimp connector designed for voltages of up to 1,500 V. It is suitable both for automated assembly and for manual assembly in the field.

Suitable installation accessories

Suitable installation accessories

Suitable installation accessories

From plug-in connectors to tools: our installation accessories are tested for quality and perfectly matched. This enables us to guarantee top quality and optimal functioning.

Reliable surge protection VARITECTOR PU PV

Reliable surge protection VARITECTOR PU PV

Reliable surge protection VARITECTOR PU PV

Reliable surge protection with future-proof performance is a must to maximise system uptime and profitability. The VARITECTOR PU PV series is designed for use in PV string combiner boxes for generator voltages up to 1,500 V and complies with latest UL and EN standards for global application.

PV Tools

Reliable installation tools

When installing a photovoltaic system, the installer is dependent on reliable and smooth-running tools. Weidmüller offers a range of professional tools for this purpose.

Reliable installation tools
Your benefits:
  • High quality for long-term usage
  • Long service life
  • Easy to use - even under difficult working conditions

Value-added solutions

The perfect combiner box

The perfect combiner box

The perfect combiner box

Top quality, well thought out to the last detail

Our international project work has made us very familiar with the requirements of the global market. We are well versed in all the standards and guidelines, and address each situation according to specific local requirements. From planning to delivery: you receive comprehensive advice and direct support around the globe.

Consulting

Consulting

Consulting

  • Cooperative development of value-added solutions
  • Fine-tuned adjustment to the customer’s exact requirements

Design

Design

Design

  • Development of designs at the Global Application Center in Barcelona
  • Functional testing and design validation prior to mass production

Production

Production

Production

  • Installation at a site in the global manufacturing network
  • Optimum processes through automatic testing equipment
  • Traceability provided by serial number on each housing

Quality

Quality

Quality

  • Development and assembly process in accordance with the latest requirements of the IEC standard
  • Highest standard: 100 % inspection of shipped goods and certificate of quality
  • According to IEC 61439-2

Validation

Validation

Validation

  • Testing for resistance to environmental influences, mechanical effects and technical safety
  • Final quality verification with IEC 61439-2 certification

Service

Service

Service

  • Just-in-time production and the option of individual delivery agreements
  • Straightforward commissioning through comprehensive documentation

Monitoring and SCADA systems

One eye always on performance

One eye always on performance

One eye always on performance

Excellent compatibility with leading providers - our solutions for all-round application with monitoring and SCADA systems

Combiner boxes (CBs) with string monitoring from Weidmüller can be integrated seamlessly into any system topology and ensure error-free data entry using modern monitoring and SCADA systems. Our Transclinic monitoring system continuously analyses current and voltage, the status of surge voltage arresters, and load-break switches, as well as the combiner box temperature in your photovoltaic system, enabling highly detailed system monitoring.

Negative influences, which lead to reduced output, can be detected and rectified immediately. The open Modbus RTU RS485 protocol simplifies incorporation in monitoring and SCADA systems and reinforces communication security, making this device series the perfect all-rounder for any monitoring and SCADA system provider.

Weidmüller works with leading monitoring and SCADA systems providers and data loggers, among others including: Meteocontrol, skytron energy, Solare Datensysteme GmbH, GreenPowerMonitor, PV Hardware or Axis

With the help of condition monitoring systems, users can check the correct operation of the plant, or detect and avoid a problem that can lead to a shutdown of the system.

Pablo Lo Zicchio, Global Segment Manager Photovoltaic

Training and support

We support you throughout your system’s entire lifecycle

We support you throughout your system’s entire lifecycle

We support you throughout your system’s entire lifecycle

Your photovoltaic systems should be built as efficiently as possible and operated cost-effectively in the long term without any downtime. As a customer, you benefit from our expertise and many years of experience in the photovoltaics industry, the comprehensive range of services and our global presence. Our photovoltaic specialists responsibly support your project from the initial planning meeting to the end of the system lifetime.

References

Condition monitoring as a success factor: the Sandridge 50 MW project

Innovative measuring and monitoring solutions

The Sandridge 50 MW project was a great success. With the help of our condition monitoring systems, users can check the correct operation of the plant, or detect and avoid a problem that can lead to a shutdown of the system. Find out more about the project and how you can optimise the Balance of System (BoS) performance.

Photovoltaic Week - Weidmüller Special

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The booth was planned, new products were ready and we were really looking forward to this year’s Intersolar Europe. It's no secret why the trade fair cannot take place from June 16 to 19 this year. There has already been announced a new date for the upcoming Intersolar in Munich. The trade fair will take place from June 16th to June 19th, 2021. Shall we wait for that?

The answer is clear: no! We move forward bringing the news directly to you. We are digitally reviving Intersolar from June 15 to June 19, 2020. In a PV week, we are offering five exciting webinars. Practically from the office or home office. Trends in the photovoltaic sector. Combiner boxes for rooftop and floating areas. The impact of COVID-19 on the sector.

Does that all sound exciting to you? So you should definitely read on!

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