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itolond



Member Since: 16 Jan 2016
Location: Singapore
Posts: 193

Singapore 1997 Defender 110 300 Tdi SW Alpine White
light bar wiring connectors
Hi Forum,

I am connecting a light bar to the landy (500W/12v LED). i pre wired with relay but i have some questions on the connector/s (prefer water proof BTW)

i have used a 2 pin IP type connector (in the image) which as far as i can ascertain is 10-14A rated, which given the Watts above simply would not work?

whats the best practice here?
Post #691022 4th Mar 2018 11:01pm
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Mr.Tom



Member Since: 09 Dec 2015
Location: St Neots
Posts: 34

United Kingdom 1989 Defender 90 200 Tdi HT Alpine White
Cannot see the image but a connector of 14a won’t work with a 500w light ~40a)

Are you sure the rating of the light is correct? What Defender do you have, some only have 45 or 65 amp alternator, so not much space for running anything else when the light bar is on.

In terms of connecting it, do you want a removable connection? Otherwise I’d solder and heat shrink.

Not aware of a waterproof connector other than amphernol which are really expensive.

Otherwise something like https://www.autoelectricsupplies.co.uk/mob...category/7 Defender 90 200tdi
Post #691058 5th Mar 2018 6:10am
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itolond



Member Since: 16 Jan 2016
Location: Singapore
Posts: 193

Singapore 1997 Defender 110 300 Tdi SW Alpine White
i am going to hook the light up direct to battery and place a meter in between as a check
Post #691062 5th Mar 2018 7:01am
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19449

United Kingdom 
50A Anderson connectors with rubber boots.
There is still a joint, but proper use of quality electrical tape with a tear off tab on will give you a quality connection. Capable of carrying the current, and waterproof and removable pretty easily if required. I used 6mm2 cable also on mine, the max you can use with many relay terminals etc etc.

If you need to remove, just remove tape and un-plug. To keep the existing plug clean and dry just use an Anderson cap.

Works a treat, and pretty quick to whip off or put back on if needed.
Which is ideal if you needed to for taking parts off for painting or other similar exercise. Diesels Lives Matter. ⛽️🛢️👨‍🔧🧰⚙️
And if You Love the Country, then we’re on the same side ~
I got’ love for Britain, I got’ British pride’. 🇬🇧
Post #691130 5th Mar 2018 11:25am
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itolond



Member Since: 16 Jan 2016
Location: Singapore
Posts: 193

Singapore 1997 Defender 110 300 Tdi SW Alpine White
Post #691161 5th Mar 2018 1:36pm
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itolond



Member Since: 16 Jan 2016
Location: Singapore
Posts: 193

Singapore 1997 Defender 110 300 Tdi SW Alpine White
custom90steve wrote:
50A Anderson connectors with rubber boots.
There is still a joint, but proper use of quality electrical tape with a tear off tab on will give you a quality connection. Capable of carrying the current, and waterproof and removable pretty easily if required. I used 6mm2 cable also on mine, the max you can use with many relay terminals etc etc.

If you need to remove, just remove tape and un-plug. To keep the existing plug clean and dry just use an Anderson cap.

Works a treat, and pretty quick to whip off or put back on if needed.
Which is ideal if you needed to for taking parts off for painting or other similar exercise.


6mm2 cable = is 10AWG right?
Post #691177 5th Mar 2018 2:20pm
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rallysteve



Member Since: 10 Feb 2014
Location: South Yorks
Posts: 2194

United Kingdom 2002 Defender 110 Td5 DCPU Keswick Green
6mm2 cable is between 8 and 10 AWG. 02' 110 TD5 Double Cab Rebuild Thread
84' 90 3.9 V8 Caged Pickup Build Thread


Mobile Diesel Heater Build Thread
Post #691183 5th Mar 2018 2:23pm
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itolond



Member Since: 16 Jan 2016
Location: Singapore
Posts: 193

Singapore 1997 Defender 110 300 Tdi SW Alpine White
thanks- just doing some research -sits right in between

8 AWG will be over kill but should do the trick - Relay however seem to be rated 40A but most come with 12 and 18AWG wires....... how does this work?
Post #691185 5th Mar 2018 2:28pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19449

United Kingdom 
Every component of the power run needs to be higher rated than the in-line fusing.

So if you have a 40A fuse and the wiring is rated lower you are confined to the cable capacity and not the Relay current capacity.
You can get higher rated Relays, and your 10awg will be fine.
6mm2 (as above give or take) is pretty much the largest you can go with standard Relays supplied terminals etc.
Above that and larger it'll be going down the HD route which is larger again, with more substantial connectors.

Thumbs Up Diesels Lives Matter. ⛽️🛢️👨‍🔧🧰⚙️
And if You Love the Country, then we’re on the same side ~
I got’ love for Britain, I got’ British pride’. 🇬🇧
Post #691187 5th Mar 2018 2:47pm
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