Solar Accessories

Solar Panel Accessories for Reliable PV Wiring

Every solar panel needs the right parts between the module and the charge controller. This range covers the connectors, extension cable, inline protection, DC circuit breakers and roof cable entry hardware used in caravan, RV, 4WD, marine and off-grid solar installs. The aim is a clean, weather-resistant and serviceable PV circuit, whether you are wiring a single panel or joining several in parallel.

What You Will Find in This Range

• MC4-style solar connectors: Standard and Gen 2 connector pairs, bulkhead (panel mount) pairs and sealing/dust caps. Genuine Stäubli MC4, MC4 Evo 2 and 10mm² MC4 Evo 2 pairs are also available. Browse the full range in solar connectors.
• Branch joiners: 2 to 1, 3 to 1 and 4 to 1 connector pairs in 'h' and 'Y' styles, plus the Stäubli MC4 Evo 2 'h' branch pair, for combining panels in parallel.
• Twin solar extension cable: 4mm² and 6mm² twin cable in 1m, 3m, 5m and 10m lengths for runs from the roof to the regulator.
• Inline protection: Inline fuse solar connectors from 5A to 20A, and inline blocking diode connectors in 10A, 15A and 20A.
• 2-pole DC circuit breakers: 2-pole DC MCBs from 10A to 63A, and Noark 2-pole 360V non-polarised DC solar breakers in the same 10A to 63A spread, for isolating the PV array. See also PV isolator switches.
• Cable entry covers and grommets: Clamshell covers in small to XL sizes in white, black and stainless steel. Also 1 and 2 gland lightweight ABS covers, solar connector entry covers and a 20mm, 2x6mm multiple gland rubber grommet.
• Tools: A solar connector crimper, spanner set, connector tool kit and the Stäubli 32.6126 Professional MC4 Solar Toolset for correct termination.

Choosing the Right Accessories

Start with cable size. 4mm² twin cable suits many single-panel and shorter runs. 6mm² helps reduce voltage drop on longer runs or higher-current parallel arrays. Next, choose how panels are joined. Branch connectors combine panels in parallel. Inline fuses protect individual strings. Blocking diodes help stop reverse current flowing between panels.

On the roof, a clamshell or gland-type cable entry cover gives a tidy, sealed path for cable into the vehicle or vessel. Choose white, black or stainless steel to match the roof finish. Our guide to selecting cables and accessories for solar and electrical in RVs walks through these decisions in more detail.

Compatibility Notes

Match connector pairs within the same series wherever possible, and terminate them with the correct crimp tool for a weatherproof, low-resistance joint. The 10mm² Stäubli MC4 Evo 2 pair is intended for larger conductors. Standard pairs suit common 4mm² and 6mm² solar cable. Size inline fuses and DC breakers to your panel or array current and cable rating, and check that breaker voltage ratings suit the PV string. Use dust caps on any unmated connectors during installation or storage.

Build a neater, safer solar install with matched connectors, correctly sized cable and proper circuit protection. Choose your parts above and order the complete set in one go.