{"product_id":"50a-120a-quick-connect-plug-kit-silver-plated-copper-winch-atv-trailer-wiring","title":"50A \/ 120A Quick Connect Plug Kit – Silver-Plated Copper Connector for 12–36V Winch, ATV \u0026 Trailer Wiring, 4pcs","description":"\u003ch2\u003e50A \/ 120A Quick Connect Plug Kit – Silver-Plated Copper for 12–36V Winch, ATV \u0026amp; Trailer Wiring\u003c\/h2\u003e\n\n\u003cp\u003eHigh-current quick connect\/disconnect plug kits for winch, ATV, trailer, and battery wiring applications. Silver-plated copper contacts provide the lowest possible contact resistance for high-current connections — silver has higher electrical conductivity than tin or nickel plating, reducing voltage drop and heat generation at the connector. The push-together, pull-apart design allows rapid connection and disconnection without tools. Available in 50A (for standard winch and ATV applications) and 120A (for heavy-duty winches, high-current battery connections, and electric vehicle auxiliary circuits).\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Ratings:\u003c\/strong\u003e 50A or 120A (select above)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Material:\u003c\/strong\u003e Copper, silver-plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e Flame-retardant nylon PA66\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Range:\u003c\/strong\u003e 50A: 6–10mm² (10–8AWG); 120A: 16–25mm² (6–4AWG)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e Push-together \/ pull-apart (no tools required)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 4 pieces (2 pairs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e50A vs 120A — Selection Guide\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e50A:\u003c\/strong\u003e For winches up to 600W at 12V (50A × 12V = 600W), ATV accessory power connections, trailer auxiliary power, and battery jump-start connections. Wire: 6–10mm² (10–8AWG).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e120A:\u003c\/strong\u003e For heavy-duty winches (1200W+ at 12V), high-current battery connections, electric vehicle auxiliary circuits, and applications where the 50A rating is insufficient. Wire: 16–25mm² (6–4AWG).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelection rule:\u003c\/strong\u003e Calculate the maximum current draw of the connected load. Apply a 1.25× safety factor. Select the connector rating above the result. For winches: check the winch’s rated current draw at maximum load (typically listed in the winch specifications).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eWhy silver-plated instead of tin-plated contacts?\u003c\/h4\u003e\n\u003cp\u003eSilver has lower electrical resistivity than tin (1.6 μΩ·cm vs 11 μΩ·cm). At high currents (50–120A), even a small difference in contact resistance causes significant voltage drop and heat generation. A 1mΩ contact resistance at 100A produces 10W of heat at the connector — enough to cause connector degradation over time. Silver-plated contacts maintain lower resistance and run cooler than tin-plated contacts at the same current level.\u003c\/p\u003e\n\n\u003ch4\u003eCan I use these connectors for battery-to-battery charging (vehicle-to-vehicle)?\u003c\/h4\u003e\n\u003cp\u003eYes. Quick connect plugs are commonly used for vehicle-to-vehicle battery charging and jump-starting. The 50A rating is adequate for most jump-start applications (typical jump-start current: 20–50A). For high-current jump-starting of diesel trucks and heavy equipment, use the 120A version. Always connect positive-to-positive and negative-to-negative — the connectors are not polarized by default; use color-coded housings (red for positive, black for negative) to prevent polarity reversal.\u003c\/p\u003e\n\n\u003ch4\u003eWhat wire gauge should I use with 50A and 120A connectors?\u003c\/h4\u003e\n\u003cp\u003e50A connector: minimum 6mm² (10AWG) for runs up to 2m; 10mm² (8AWG) for longer runs. 120A connector: minimum 16mm² (6AWG) for runs up to 2m; 25mm² (4AWG) for longer runs. Undersized wire causes excessive voltage drop and overheating — the wire is the limiting factor, not the connector. Always size the wire for the maximum current, not the average current.\u003c\/p\u003e\n\n\u003ch4\u003eAre these connectors compatible with Anderson SB connectors?\u003c\/h4\u003e\n\u003cp\u003eThese are Anderson-style quick connect plugs — they follow the same push-together \/ pull-apart design as Anderson SB connectors and are dimensionally compatible with genuine Anderson SB50 (50A) and SB120 (120A) connectors. Verify dimensional compatibility before mixing brands in the same system.\u003c\/p\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWinches:\u003c\/strong\u003e Power connections for electric winches on 4WD vehicles and ATVs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eATV \u0026amp; UTV:\u003c\/strong\u003e Accessory power connections, battery disconnect points\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrailers:\u003c\/strong\u003e Auxiliary battery connections, electric brake power\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolar \u0026amp; battery storage:\u003c\/strong\u003e Battery-to-inverter and battery-to-charger connections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectric vehicles:\u003c\/strong\u003e Auxiliary battery connections and charging interfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cp\u003e4 pieces (2 pairs) — quick connect plug kits (current rating as selected: 50A or 120A). Housing + silver-plated copper contacts. Wire not included.\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"Red handle","offer_id":47850607182069,"sku":"14:200004889#Red handle","price":15.72,"currency_code":"USD","in_stock":true},{"title":"Red 50A","offer_id":47850607116533,"sku":"14:200004891#Red 50A","price":25.13,"currency_code":"USD","in_stock":true},{"title":"Red 120A","offer_id":47850607214837,"sku":"14:350850#Red 120A","price":70.7,"currency_code":"USD","in_stock":true},{"title":"Black 50A","offer_id":47850607280373,"sku":"14:200002130#Black 50A","price":25.13,"currency_code":"USD","in_stock":true},{"title":"Black 120A","offer_id":47850607345909,"sku":"14:29#Black 120A","price":70.7,"currency_code":"USD","in_stock":true},{"title":"Grey 50A","offer_id":47850607313141,"sku":"14:200003699#Grey 50A","price":25.13,"currency_code":"USD","in_stock":true},{"title":"Grey 120A","offer_id":47850607378677,"sku":"14:10#Grey 120A","price":70.7,"currency_code":"USD","in_stock":true},{"title":"Grey handle","offer_id":47850607149301,"sku":"14:200004890#Grey handle","price":15.72,"currency_code":"USD","in_stock":true},{"title":"Green 50A","offer_id":47850607247605,"sku":"14:365458#Green 50A","price":25.13,"currency_code":"USD","in_stock":true},{"title":"Blue 50A","offer_id":47850607444213,"sku":"14:350852#Blue 50A","price":25.13,"currency_code":"USD","in_stock":true},{"title":"Yellow 50A","offer_id":47850607411445,"sku":"14:350853#Yellow 50A","price":25.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/Sd2a71aa001664a8ead9abf349928d10d2.webp?v=1773899378","url":"https:\/\/www.csldmcml.com\/products\/50a-120a-quick-connect-plug-kit-silver-plated-copper-winch-atv-trailer-wiring","provider":"Cable Parts Online","version":"1.0","type":"link"}