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If you’re travelling abroad in your caravan or motorhome, this is a piece of equipment you should consider investing in.

On sites abroad, the live and neutral wires can be wired the other way around. Without going into massive amounts of deals, if something is wired up “the other around” i.e. in your Electric Hook Up (EHU) things in the caravan will still work, however, they may remain live. For example, if you switch the kettle off, it may still be live.

In theory, this isn’t particularly dangerous, but if an appliance has a fault, it may cause you problems.

With most things in life, once you start to concern yourself with something, then you need to sort it, or it just plays on your mind. “What if I’m on a site in France and the polarity is reversed”. This is something I’ve never even thought about until recently. But as soon as that thought entered my head, I felt it prudent to get one.

You can, of course, modify cables yourself, but that’s beyond the scope of this article, there are plenty of resources on You Tube if that’s what you want to do. There are a couple of useful informational videos at the bottom of the article.

We recommend buying one that also has a tester, that way you can have peace of mind and test it yourself. In theory sites should tell you if their site is in fact reverse polarity, but better safe than sorry and just quickly check yourself with a tester. this is included with some cables.

Best Selling Caravan Reverse Polarity Adapters

Bestseller No. 1
Hook Up Reverse Polarity Adapter (Orange) 16A-16A Caravan Motorhome Camping Boat with FREE POLARITY TESTER PLUG*
  • 16 AMP to 16 AMP Reverse Polarity Adapter
  • 650mm (65cm) Approximate Length
  • 2.5mm 3 Core Arctic Grade Orange Cable - Fully 16A Rated
  • PCE 16A 230V/240V Plug and Socket
  • FREE Polarity Tester Plug
Bestseller No. 2
Hook Up Reverse Polarity Adapter (Blue) 16A-16A Caravan Motorhome Camping Boat*
  • 16 AMP to 16 AMP Reverse Polarity Adapter
  • 650mm (65cm) Approximate Length
  • 2.5mm 3 Core Arctic Grade Blue Cable - Fully 16A Rated
  • PCE 16A 230V/240V Plug and Socket
Bestseller No. 3
Hook Up Reverse Polarity Adapter (Orange) 16A-16A Caravan Motorhome Camping Boat*
  • 16 AMP to 16 AMP Reverse Polarity Adapter
  • 650mm (65cm) Approximate Length
  • 2.5mm 3 Core Arctic Grade Orange Cable - Fully 16A Rated
  • PCE 16A 230V/240V Plug and Socket
Bestseller No. 4
Hook Up Reverse Polarity Adapter (Blue) 16A-16A Caravan Motorhome Camping Boat with FREE POLARITY TESTER PLUG*
  • 16 AMP to 16 AMP Reverse Polarity Adapter
  • 650mm (65cm) Approximate Length
  • 2.5mm 3 Core Arctic Grade Blue Cable - Fully 16A Rated
  • PCE 16A 230V/240V Plug and Socket
  • FREE Polarity Tester Plug
SaleBestseller No. 5
Winner Mains Polarity Tester Plug*
  • Mains Polarity Tester Plug
  • Easy to Use: No Setting Up Required
  • If all three indicator lamps light up - the socket is wired correctly
  • If other variations occur the easy to follow chart on front of plug will identify problem for you.
SaleBestseller No. 6
Caravan Hook Up Adapter Original 230v Uk Mains Conversion Domestic Plug Top Connector Lead Camping Three Core Cable Ce Approved Easy To Use Brand New*
  • CE approved
  • 13 amp 3 pin UK domestic plug top
  • 1.5mm orange three core cable
  • 240v 16 amp coupler connect into your 5, 10, 15 or 25 metre orange mains lead
  • Quick and easy to use
Bestseller No. 7
ECO-WORTHY 12 Volts 10 Watts Portable Power Solar Panel Battery Charger with Alligator Clip Adapter Backup for Car Boat RV*
  • Wide range of applications: perfect solution for charging the batteries of car, motorcycles, automobiles, snowmobiles, tractors etc.
  • IP65 protection: water-proof solar panel, environmental protection and energy saving, which can maintain the battery lifetime.
  • Emergency use: can charge 12V rechargeable batteries in emergency, suitable for vehicles in outdoor work or travel or camping training.
  • Advantages:light weight, easy to install and completely maintenance-free. Shockproof, rust-proof and dustproof. Can be used for trickle charger.
  • Recommendation: you can buy (B07KXPQ98H) 14AWG SAE To Ring Terminal Harness together which is more convenient to use together.
SaleBestseller No. 8
Kewtech LOOPCHECK107 Mains Socket Tester with Loop Check*
  • Ensures maximum safety by checking quality of earth loop return path, Offers more functions than regular socket testers
  • Using the device is simple - just plug it into the socket you wish to test (the device is designed to fit in standard UK three-pin plug sockets) and once connected the 107 will begin evaluate wiring status and display these results as LED indicators.
  • Automatically runs wiring checks upon insertion into mains, Has Red and Green LEDs.
  • Releases a continuous tone for satisfactory results. Releases a warble tone for fault.
  • Checks for the polarity of the mains supply., Checks RCDs with measured current.
SaleBestseller No. 9
Kewtech KEWCHECK103 Mains Wiring Socket Tester*
  • SIMPLE TO USE: The Kewcheck 103 Socket Tester allows you to easily check if Live, Neutral and Earth wires are wired correctly on any UK plug socket. Simply plugs into the socket for results in seconds
  • DUAL RESPONSE: The LED lights integrated into this socket tester will then light up in a certain way depending on what's detected, and the product will either emit a continuous, warbling or no tone depending on what's detected
  • QUICK AND EASY: Designed to easily give quick and clear indication of the status of a socket's internal wiring without the need to remove the socket panel from the wall.
  • 14 WIRING CONDITIONS: All of the possible indications are displayed on the front of the Kewcheck103 to help with easily understanding the test results for each socket
  • BUY WITH CONFIDENCE: The Kewtech brand has become synonymous with high quality, as we manufacture innovative, accurate and reliable test equipment specifically for the UK market.
SaleBestseller No. 10
Power Inverter Pure Sine Wave-2000 Watt 12V DC to 230V/240V AC Converter-2AC Outlets Car Inverter with One USB Port-5 Meter Remote Control And Two Cooling Fans-Peak Power 4000 Watt*
  • ABSOLUTELY PURE SINE WAVE INVERTER - Converts 12V DC to AC 230V/240V household wall power with continuous 2000 Watts output ( 4000Watts surge capability). features with 2 AC receptacles, one 2.1A USB port,high current DC terminals and a wired remote control (5 Meter in length) .
  • DELIVERS ULTRA-CLEAN PURE SINE WAVE OUTPUT- that is identical to AC power supplied by your utility ,improves AC equipment performance by our low interference technology (L.I.T), ideal for sensitive loads like Televisions,Audio Systems, Variable Speed Tools, Laser Printers, Laptops, CPAP ,and more.
  • REMOTE CONTROL- Uses The Control with the light display for better monitoring actual working status (battery level indicator,audible alarm ),With two Sets of Battery Cables for more safe(prevent the cables heating).
  • PROTECTION FEATURES-over temperature shutdown ,automatic overload protection , over voltage and under voltage protection , less voltage audible alarm ,short circuit protection , AC ground terminal, new designed DC terminals offer high current DC input (hooked securely and available for thicker cables).
  • WHAT YOU GET-1xGiftbox ,1x 12V to 230V 2000W Pure Sine Inverter MS2000, 1x User Manual in German and English, 2 Set of Battery Cables(2xRed,2xBlack), 1x remote control . 12 months warranty with free replacement.
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Experienced caravanners that are still learning!Our first caravan was a Knaus which we bought from Germany in 2006. After this we bought a Autotrail Motorhome, but sold that to build a house. Once that was done we went back to a caravan, a Sterling Eccles, which we recently part-ex'd for a Bailey Unicorn.
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*Last update on 2019-11-15 / Affiliate links / Images from Amazon Product Advertising API

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