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Solar Accessories & Balance-of-System Hardware

Solar Accessories & Balance-of-System Hardware

Connectors, cables, fuses, breakers and tools to finish your solar build. Create safe, serviceable DC systems for RVs, boats, cabins and IoT projects, and keep modules, batteries and loads tied together cleanly.

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Solar Accessories for Complete DC Systems


Solar accessories are the small parts that make a solar system work as a whole: connectors, cables, fuses, breakers, junction boxes, tools and cable management. They do not generate power, but they decide whether your system is safe, serviceable and easy to expand later.

The accessories in this collection are designed to work with module families such as our Portable Solar Panels, Flexible Solar Panels and Mini Solar Panels, and with mounting hardware in the Solar Panel Brackets & Mounts range. They appear in real projects on our RV & Campervan, Marine & Yacht and IoT & Smart Sensors application pages, tying modules, batteries and loads into a clean wiring layout.

Types of Accessories in This Collection

Connectors & Adapters


Connectors and adapters let you join panels, extension leads, charge controllers and batteries without cutting factory cables. Typical parts include MC4-style connectors, branch adapters, plug converters and terminal adapters. Good connectors reduce installation time, help avoid wiring mistakes and make it easier to reconfigure or service a system later.

Extension Cables & Wiring


Extension cables and DC leads carry energy from your panels to regulators, batteries and loads. Choosing the right cable length and cross-section minimises voltage drop and heating, especially in portable and vehicle-based systems where runs can be long. Pre-terminated leads with moulded connectors simplify field setup and reduce the chance of poor terminations.

Fuses, Breakers & DC Protection


Fuses, breakers and disconnect switches protect wiring and equipment from faults. They allow you to isolate panels, batteries and loads for maintenance and give a defined weak point that opens before cables or electronics are damaged. Even small off-grid systems benefit from basic over-current protection and a clear way to turn sections off safely.

Combiner & Junction Boxes


Combiner and junction boxes bring multiple panel strings or circuits together in a protected enclosure. They keep splices, distribution bars and protection devices out of the weather and provide a neat point for entering buildings, vehicles or cabinets. Clear labelling and plenty of space around terminations make troubleshooting and expansion much easier.

Cable Management & Small Mounting Hardware


Cable clips, ties, glands and small brackets keep wiring where it belongs—supported, strain-relieved and away from sharp edges and hot surfaces. On roofs, vehicles and masts they also keep cables from flapping in the wind or casting unwanted shadows across modules. Many of the same ideas apply to small devices that reuse mounting concepts from the main Solar Panel Brackets & Mounts range.

Crimp Tools & Installation Aids


Crimp tools and installation aids help you make reliable terminations and repeatable assemblies. A properly crimped connector or lug performs better and lasts longer than a makeshift joint. For teams building multiple systems, consistent tools and accessories shorten training time and lead to fewer service calls in the field.

Design & Installation Notes


Accessories are where many of the practical decisions live. A few simple rules will make small and medium solar systems safer and easier to support over time.

  • Think in circuits, not just parts: Map how current flows from panels to controllers, batteries and loads, and place fuses or breakers close to energy sources and battery positives.
  • Match ratings properly: Check voltage, current and temperature ratings of connectors, cables and protection devices against your maximum system values, not only nominal figures.
  • Respect polarity and labelling: Use clear colour codes and labels for positive, negative and earth where applicable. This reduces mistakes during installation and later troubleshooting.
  • Plan for service: Leave enough slack and access so connectors can be unplugged, fuses replaced and measurements taken without dismantling half the installation.

OEM & Project Kit Support


For OEMs and project teams, accessories become part of a defined bill of materials rather than one-off choices. The same connectors, cables, fuses and tools are used again and again across vehicles, enclosures or remote sites, so installers know exactly what to expect when they open a kit.

LinkSolar can help turn the accessories in this collection into a stable platform for your own products—paired with module families and mechanical designs defined through our Custom Solar Panels program. By standardising connectors, cable lengths and protection, you gain repeatable installations that behave the same way from lab prototypes through to full deployment.

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Frequently Asked Questions

What is included in “solar accessories” for this collection?

Solar accessories in this collection cover the balance-of-system parts around your panels and batteries: connectors, extension cables, adapters, fuses, breakers, disconnect switches, junction boxes, cable glands, small brackets and basic tools. They are the pieces that turn individual components into a safe, working DC system.

How do I choose the right cable size for my system?

Cable size depends on current, voltage drop and run length. Higher current and longer runs require thicker conductors. As a simple rule, start from the maximum current your circuit will see, then check a cable chart or calculator to keep voltage drop within a few percent. In critical or hot environments, add margin rather than running at the limit of a cable’s rating.

Do I really need fuses or breakers in a small solar setup?

Yes. Even small systems store enough energy to damage wiring or equipment if a fault occurs. Fuses and breakers protect the cable and connected devices by opening the circuit when current exceeds a safe level. At minimum, each battery-positive conductor and each panel string should be protected according to its cable rating and expected fault conditions.

What is the difference between a fuse and a circuit breaker?

A fuse is a one-time protective element that melts when current exceeds its rating; it must be replaced after it blows. A circuit breaker is a resettable device that trips under over-current and can be switched back on once the fault is cleared. Fuses are simple and compact, while breakers make it easier to isolate circuits and restore service without spare parts.

Are these accessories compatible with non-LinkSolar panels and equipment?

Most accessories are designed around common DC standards and work with panels, controllers and batteries from many manufacturers, as long as voltage, current and connector types match. Always check ratings and connector polarity, and confirm that plug styles and dimensions are suitable for the equipment you plan to use.

Where should I place fuses and breakers in my system?

Protection devices are typically placed as close as practical to the energy source or battery positive terminal so that the smallest possible length of cable remains unprotected. In a simple system, this may mean a fuse or breaker at the battery, one on the line from the panels to the controller and, in some cases, additional protection on individual load circuits.

Are the accessories suitable for outdoor and marine environments?

Many accessories are made for outdoor use and use materials such as UV-stable plastics, tinned copper and stainless steel. However, exact suitability depends on the specific product and environment. For marine or harsh industrial sites, it is important to pay attention to IP ratings, corrosion resistance and sealing around cable entries, and to inspect connections periodically.

Can I install these accessories myself or should I hire a professional?

Capable DIY users can often install basic accessories in low-voltage systems if they follow good practices and the product instructions. However, if you are unsure about cable sizing, protection, grounding or local regulations, or if the system is large or mission-critical, working with a qualified installer or electrician is the safer choice. Good design and installation upfront usually cost less than fixing problems later.

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