{"product_id":"dc-polarity-reversing-cable-2-1mm-5-5mm-18awg-3ft-rc-rn2155","title":"DC Polarity Reversing Cable, 2.1 x 5.5mm, 18 AWG, 3 ft | RC-RN2155","description":"\u003ch2\u003eDC Polarity Reversing Cable, 2.1 x 5.5mm Barrel Connectors\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart RC-RN2155\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RC-RN2155 is a 3-foot inline DC barrel cable built to intentionally reverse polarity between compatible 2.1 x 5.5mm connections. It provides a practical way to correct a polarity mismatch without cutting or rewiring a power lead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This cable reverses the DC polarity. It does not pass polarity straight through.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e RC-RN2155\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Connector:\u003c\/strong\u003e 2.1mm (ID) x 5.5mm (OD) female barrel socket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Connector:\u003c\/strong\u003e 2.1mm (ID) x 5.5mm (OD) male barrel plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Gauge:\u003c\/strong\u003e 18 AWG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e 3 feet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolarity:\u003c\/strong\u003e Reverses positive and negative conductors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Use Cases\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCorrecting a polarity mismatch between a DC power source and a compatible device\u003c\/li\u003e\n\u003cli\u003eLow-voltage DC installations that require a 2.1 x 5.5mm inline polarity-reversal lead\u003c\/li\u003e\n\u003cli\u003eBench testing and service setups where connector size and output polarity have been verified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility Check Before Ordering\u003c\/h3\u003e\n\u003cp\u003eThis cable is only for compatible DC connections. Confirm the device and power supply use a 2.1mm x 5.5mm barrel connector, require the same DC voltage, and can use the available current. Most importantly, verify that reversing polarity is required. Do not use this cable with AC output, a different connector size, or equipment that requires the original polarity.\u003c\/p\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eDoes RC-RN2155 reverse polarity?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes. It intentionally reverses the positive and negative conductors from the female input to the male output.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWill this change voltage?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eNo. It changes conductor polarity only. It does not convert AC to DC, change voltage, or regulate current.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eAre 2.1mm and 2.5mm barrel plugs interchangeable?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eNo. Although both commonly use a 5.5mm outer diameter, their inner diameters differ. Confirm your equipment needs a 2.1mm x 5.5mm connector.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"PHC Enterprise","offers":[{"title":"Default Title","offer_id":40140415369329,"sku":"RC-RN2155","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2082\/0601\/products\/RC-R25_b.jpg?v=1779904886","url":"https:\/\/www.acdcpowershack.com\/products\/dc-polarity-reversing-cable-2-1mm-5-5mm-18awg-3ft-rc-rn2155","provider":"AC-DC PowerShack","version":"1.0","type":"link"}