{"title":"Renogy Cables \u0026 Connectors","description":"\u003cp\u003eInterconnect for a 12V system. Getting cable size and connector type right is what keeps volt drop and heat out of a build. Sold by Renogy UK.\u003c\/p\u003e","products":[{"product_id":"renogy-branch-connectors-solar-mc4-connectors-y-connector-in-pair-mmfffm","title":"2 to 1 Solar Branch Connectors MMF+FFM Pair","description":"\u003cp\u003e\u003cstrong\u003eY-connectors for wiring two panels in parallel.\u003c\/strong\u003e Sold as a pair — one MMF and one FFM — so two panels combine into a single run down to the controller.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo panels into one\u003c\/strong\u003e pair of leads\u003c\/li\u003e\n\u003cli\u003eSupplied as a pair: one \u003cstrong\u003eMMF\u003c\/strong\u003e and one \u003cstrong\u003eFFM\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompatible with standard solar connectors\u003c\/li\u003e\n\u003cli\u003eTight, weather-resistant connections\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat parallel actually does\u003c\/h3\u003e\u003cp\u003eWiring two panels in parallel keeps the array voltage the same as a single panel and doubles the current. That suits a 12V system with a PWM controller, and it is the shade-tolerant option: if one panel is shadowed, the other carries on largely unaffected. The cost is current — two 200W panels in parallel push over 12A down the roof cable, so size it accordingly.\u003c\/p\u003e\u003ch3\u003eParallel or series?\u003c\/h3\u003e\u003cp\u003eOn a van roof with a vent, a fan and roof bars casting moving shadows, parallel usually delivers more real energy across a day. On a clear roof with a long cable run to the controller, series is more efficient because the current is halved. Decide based on your obstructions, not on which sounds better.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eParallel strings usually want a fuse per string — with two panels it is often omitted, but from three upwards it is standard practice. Check your panels' maximum series fuse rating.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358100488359,"sku":"RNG-CNCT-MC4Y-UK","price":9.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/20170721_070336_51euaje-rpl_sl1000___15886.1582017067.1280.1280.jpg?v=1789801129"},{"product_id":"renogy-solar-mc4y2-branch-connectors-mmfffm-pair","title":"3 to 1 Solar Branch Connectors MMMF+FFFM Pair","description":"\u003cp\u003e\u003cstrong\u003eBranch connectors for three panels in parallel.\u003c\/strong\u003e One MMMF and one FFFM, with a rivet-and-lock design that assembles and comes apart without tools.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree panels into one\u003c\/strong\u003e pair of leads\u003c\/li\u003e\n\u003cli\u003eSupplied as a pair: one \u003cstrong\u003eMMMF\u003c\/strong\u003e and one \u003cstrong\u003eFFFM\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh ageing resistance and UV endurance\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRivet and lock connection — no tools needed\u003c\/li\u003e\n\u003cli\u003eWeatherproof for harsh environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThree panels is where fusing starts to matter\u003c\/h3\u003e\u003cp\u003eWith three or more panels in parallel, a fault in one panel can be back-fed by the other two, and a panel's internal wiring is not rated to carry that. This is the point at which an in-line fuse per string stops being optional. Size each to the panel's maximum series fuse rating — typically 15A on 100W and 175W modules.\u003c\/p\u003e\u003ch3\u003eCurrent adds up quickly\u003c\/h3\u003e\u003cp\u003eThree 200W panels in parallel is roughly 19A down a single roof cable. That needs 6mm² at minimum over a typical run, and a controller rated to take it. If the numbers are getting uncomfortable, a series or series-parallel arrangement with a higher-voltage MPPT controller is the better engineering answer.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eNo tools for assembly is genuinely useful on a roof. Push until each connector clicks — a partially mated solar connector will still pass current and will let water in.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358100521127,"sku":"RNG-CNCT-MC4Y-M-UK","price":14.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/20181228_095036_e1__30434.1561169370.1280.1280.jpg?v=1789801129"},{"product_id":"renogy-solar-mc4-y-branch-connectors-mffff-fmmmm-pair","title":"4 to 1 Solar Y Branch Connectors MFFFF  + FMMMM Pair","description":"\u003cp\u003e\u003cstrong\u003eExtended Y branch connectors for four panels in parallel.\u003c\/strong\u003e Designed around 400W kits, with enough lead length to reach panels mounted in either portrait or landscape without a tangle of cable across the roof.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour panels into one\u003c\/strong\u003e pair of leads\u003c\/li\u003e\n\u003cli\u003eSupplied as a pair: \u003cstrong\u003eMFFFF\u003c\/strong\u003e and \u003cstrong\u003eFMMMM\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuits \u003cstrong\u003e400W kits\u003c\/strong\u003e (four 100W panels)\u003c\/li\u003e\n\u003cli\u003eExtended leads for portrait or landscape mounting\u003c\/li\u003e\n\u003cli\u003eHard plastic construction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFour in parallel means real current\u003c\/h3\u003e\u003cp\u003eFour 100W panels in parallel is roughly 20–22A down a single pair of cables. That wants 6mm² as a minimum, a controller rated for it, and a fuse on each string — with four panels, back-feed into a faulted module is a genuine risk rather than a theoretical one.\u003c\/p\u003e\u003ch3\u003eOr consider two pairs in series\u003c\/h3\u003e\u003cp\u003eTwo series pairs wired in parallel gives you the same 400W at double the voltage and half the current. On a long run to the controller that is cheaper in cable and more efficient. The trade-off, as always, is shading: series strings suffer more when part of the array is shadowed.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eThe extended leads are the point of this version — they let panels be spaced across a roof without an extra set of extension cables. Check they reach your intended layout before committing to a panel arrangement.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358100553895,"sku":"RNG-CNCT-MC4BC-UK","price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/20181107_131729_20180607_070200_cnct-mc4bc-01__56244152640539912801280__16892.1582017810.1280.1280.jpg?v=1789801130"},{"product_id":"renogy-male-to-female-solar-extension-cable-a-pair","title":"Male to Female Solar Extension Cable( A Pair)","description":"\u003cp\u003e\u003cstrong\u003eSolar extension leads in 0.5m to 6m, in 10AWG or 12AWG.\u003c\/strong\u003e Male and female connectors fitted at each end, so they extend a panel lead or link two panels without any assembly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.5m, 1.5m, 3m, 4.5m and 6m\u003c\/strong\u003e lengths\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10AWG (6mm²) and 12AWG (4mm²)\u003c\/strong\u003e gauges\u003c\/li\u003e\n\u003cli\u003eMale and female solar connectors fitted\u003c\/li\u003e\n\u003cli\u003eRuns panel to controller, or panel to panel\u003c\/li\u003e\n\u003cli\u003eSupplied as a pair\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eChoose the gauge by run length\u003c\/h3\u003e\u003cp\u003eVolt drop on the panel side is energy you never see. For runs up to about 3m on a 200W array, 12AWG (4mm²) is adequate. Beyond that, or on a 400W array, go to 10AWG (6mm²). The extra cost is small and it is paid back every sunny day for the life of the vehicle.\u003c\/p\u003e\u003ch3\u003eMeasure the real route\u003c\/h3\u003e\u003cp\u003eRoof to controller is never a straight line. Over the roof rib, through the gland, down inside the wardrobe, along behind the units — the actual run is usually half as long again as people estimate. Buy one size up and coil the surplus neatly; splicing in extra later is the worse outcome.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eThe 0.5m version is intended for panel-to-panel links rather than reaching the controller. All lengths come as a pair, which is what you need for positive and negative.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358100586663,"sku":"REC20FT10PR-UK","price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/1__07170.1582006883.1280.1280.jpg?v=1789801131"},{"product_id":"renogy-lp16-plug-7-pin-10ft-communication-cable","title":"Renogy LP16 Plug (7-Pin) 10Ft Communication Cable","description":"\u003cp\u003e\u003cstrong\u003eA 3m CAN communication cable with 7-pin LP16 plugs at both ends.\u003c\/strong\u003e The link that lets REGO devices talk to each other over RV-C — which is what turns a set of separate components into a system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e7-pin LP16 connectors\u003c\/strong\u003e at both ends\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3m (10ft)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eConnects to any CAN communication port on a REGO product\u003c\/li\u003e\n\u003cli\u003eEnables RV-C communication between REGO devices\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat the devices do once they can talk\u003c\/h3\u003e\u003cp\u003eWith a communication link in place, a REGO battery can tell the charger what it actually wants rather than the charger inferring it from terminal voltage. The charging profile adjusts dynamically, which is both safer for the cells and more effective — particularly at the top of a charge, where voltage-only charging tends to stop short.\u003c\/p\u003e\u003ch3\u003ePlan the topology, not just the cable\u003c\/h3\u003e\u003cp\u003eCAN is a bus, not a star. Devices chain from one to the next, and unused ports at the end of the chain want a terminator plug to stop signal reflections. Work out the order of devices and the distances before buying cables, or you will end up with the wrong lengths.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eThree metres is enough to link two devices mounted in the same cupboard or on the same bulkhead. If the battery is under a bed and the charger is in the wardrobe, measure first — the 23ft version exists for a reason.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358100652199,"sku":"RCA10LL-6767-UK","price":25.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/RCA10LL-6767_01__31467.1683355135.1280.1280.jpg?v=1789801133"},{"product_id":"renogy-lp16-plug-7-pin-23ft-communication-cable","title":"Renogy LP16 Plug (7-Pin) 23Ft Communication Cable","description":"\u003cp\u003e\u003cstrong\u003eA 7m CAN communication cable with 7-pin LP16 plugs at both ends.\u003c\/strong\u003e The long version, for when the battery bank and the charger ended up at opposite ends of the vehicle.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e7-pin LP16 connectors\u003c\/strong\u003e at both ends\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7m (23ft)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eConnects to any CAN communication port on a REGO product\u003c\/li\u003e\n\u003cli\u003eEnables RV-C communication between REGO devices\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLong runs are normal in a motorhome\u003c\/h3\u003e\u003cp\u003eIn a panel van conversion most electrical components end up within a metre of each other. In a coachbuilt motorhome or a horsebox they do not — the battery might be under a bench at the rear and the inverter charger in a front locker. Seven metres covers that comfortably, and a communication cable carries almost no current so length costs you nothing electrically.\u003c\/p\u003e\u003ch3\u003eRoute it away from the heavy cable\u003c\/h3\u003e\u003cp\u003eCAN is robust but it is still a signal. Running it alongside a 3,000W inverter's DC feed invites interference. Where you can, keep at least a hand's width between the communication cable and the high-current runs, and cross them at right angles rather than running them parallel for metres.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eRemember the bus needs terminating at each end of the chain. Plan the device order first, then the cable lengths.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358100717735,"sku":"RCA23LL-6767-UK","price":29.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/RCA23LL-6767_01__12690.1683621666.1280.1280.jpg?v=1789801134"},{"product_id":"renogy-mc4-assembly-tool","title":"Solar Assembly Tool","description":"\u003cp\u003e\u003cstrong\u003eA hard plastic spanner for tightening and releasing solar connectors.\u003c\/strong\u003e Two sizes in one tool, and the thing that turns \"I cannot get this connector apart\" into a two-second job.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard plastic\u003c\/strong\u003e construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble-ended\u003c\/strong\u003e for quick screw-down\u003c\/li\u003e\n\u003cli\u003eAssembles and disassembles solar connectors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy you cannot do it by hand\u003c\/h3\u003e\u003cp\u003eSolar connectors are designed to lock positively so they cannot vibrate apart on a roof, which means the release tabs are deliberately stiff. Levering them with a screwdriver damages the housing and compromises the seal. The correct tool costs very little and means connectors can be opened and closed repeatedly without harm — which matters when you are fault-finding an array in the rain.\u003c\/p\u003e\u003ch3\u003eAlso for assembly\u003c\/h3\u003e\u003cp\u003eIf you are making up your own leads rather than buying pre-terminated cable, the tool tightens the gland nut properly. An under-tightened gland is the most common reason a \"waterproof\" solar connector lets water in.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eBuy one with your first array rather than after the first time you need it. It lives in the toolbox for the life of the van.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358104060071,"sku":"RNG-TOOL-MC4-UK","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/20190419_121348_51zpjwsxall_sl1000___82552.1584608465.1280.1280.jpg?v=1789801238"},{"product_id":"renogy-solar-connectors-y-branch-parallel-adapter-cable","title":"Solar Connectors Y Branch Parallel Adapter Cable","description":"\u003cp\u003e\u003cstrong\u003eY branch adapter cables rated 30A and 1500V DC, IP67 when mated.\u003c\/strong\u003e Available as a two-into-one or three-into-one pair — the properly specified version of a branch connector, with the datasheet to back it.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMMF+FFM\u003c\/strong\u003e (two into one) or \u003cstrong\u003eMMMF+FFFM\u003c\/strong\u003e (three into one)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30A rated current\u003c\/strong\u003e, 1500V DC (IEC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67 mated\u003c\/strong\u003e, IP2X unmated\u003c\/li\u003e\n\u003cli\u003eContact resistance 0.5mΩ, tin-plated copper contacts\u003c\/li\u003e\n\u003cli\u003e−40°C to 90°C, PC insulation, UL94-HB\/V0 flame class\u003c\/li\u003e\n\u003cli\u003eSuits 2.5mm², 4mm² and 6mm² single-core cable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe 30A rating is the useful number\u003c\/h3\u003e\u003cp\u003eBranch connectors are frequently sold without a current rating at all, which makes it impossible to know whether they suit your array. Thirty amps comfortably covers three 200W panels in parallel at 12V nominal, with margin. Contact resistance of 0.5 milliohms means the joint itself wastes almost nothing.\u003c\/p\u003e\u003ch3\u003eIP67 mated, IP2X unmated\u003c\/h3\u003e\u003cp\u003eRead that carefully: these are sealed once connected, and barely protected when they are not. An unmated connector left on a roof over winter will corrode. Cap or mate every connector before the van goes back outside.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eCheck your cable falls in the 2.5–6mm² range. Parallel strings of three or more panels should each carry a fuse rated to the panel's maximum series fuse figure.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":51358104092839,"sku":"RPC0110EC-Y-UK","price":16.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1158\/3143\/files\/RPC0110EC-Y-_1-1__45251.1710312076.1280.1280.jpg?v=1789801238"}],"url":"https:\/\/shop.roamwired.com\/collections\/renogy-cables-connectors.oembed","provider":"Roam Wired Shop","version":"1.0","type":"link"}