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Old 12-01-2022, 08:14   #1
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Need wire connector advice

I am installing a lightly-used radar on the mast of a boat that gets hauled each winter with mast down. Hence I need to have a wiring break at the bottom of the mast. There are seven small wires for the electronics and two slightly larger ones that appear to be power wires. Can I attach wires to one or more male/female plugs so I don't have to unscrew each wire from a terminal strip like the one below. It is in a dry location.

https://www.defender.com/assets-product/main/202095.jpg
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Old 12-01-2022, 08:39   #2
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Re: Need wire connector advice

I have connected older radars with just this same terminal board. New radars use power and cat5 connectors which you can find with waterproof boots. I assume you have an older radar
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Old 12-01-2022, 10:25   #3
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Re: Need wire connector advice

Hi Jubilee39,

You may consider using DT connectors for watertight connections that need to be frequently disconnected and reconnected.

You use a special crimper to help you form the connections. they work pretty well.

You can find them on DigiKey and on amazon as well.

https://www.digikey.com/en/supplier-...transportation

https://www.amazon.com/s?k=dt+connectors&ref=nb_sb_noss
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Old 12-01-2022, 19:15   #4
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Re: Need wire connector advice

Those look pretty good except for the price, like $200 including the crimper. This is a one time thing. Also it does not need to be waterproof.
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Old 12-01-2022, 19:31   #5
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Re: Need wire connector advice

There are a squillion multipole connectors that would be suitable but I suggest the one of the more simple suitable one would be a D connector - maybe a D15 and use two (or three) pins for the +ve and two (or three) for the -ve leaving the rest for the signal wires.

You can choose solder or crimp.

Available everywhere along with the back shells (cable clamp)

https://en.wikipedia.org/wiki/D-subminiature

or take your pick from https://www.google.com/search?q=mult...client=gws-wiz
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Old 13-01-2022, 02:43   #6
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Re: Need wire connector advice

Greetings and welcome aboard the CF, Alex A.


Don't the various RADAR manufacturers offer proprietary cable connectors?
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Old 13-01-2022, 07:58   #7
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Re: Need wire connector advice

Probably not worth changing what you have. Yes there are connectors, many thousands from which to choose. Generally they require crimp tools or soldering. The connectors have to be selected based on the specific sizes of wire you have and in some cases must take other considerations into account also i.e. shielding.



I would suggest Anderson Powerpole connectors for the sort of thing you are doing. They are suitable for uses other than power, and can be assembled into various multi-pole configurations.



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Originally Posted by Alex A View Post
You can find them on DigiKey and on amazon as well.

https://www.digikey.com/en/supplier-...transportation

Welcome, Alex A. You offer good advice.
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Old 14-01-2022, 23:13   #8
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Re: Need wire connector advice

Wotname's suggestion of D15 since it is a dry location is sensible. If the small soldering space / pins is out of your comfort zone, then you could use Molex mini-fit 5557 4.2mm .

Google these, you can get 2 thru multiple pin, so you could use 2 pin for power, and 8 pin for signals or just one 10 pin. They can carry the current the radar needs for power connection, and good enough for signal use. These are readily available at Auto supply stores and Electronic hobby shops or your online retailer of choice.

You can crimp or solder these individually pins and sockets and then push the pins/ sockets into the plastic holder. You can buy a complete extra plug and socket to use as spares if needed during your fabrication, as they are cheap enough.

They stand up well over time in dry space marine environment.
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Old 14-01-2022, 23:59   #9
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Re: Need wire connector advice

Weather Pack, waterproof, live happily under the hoods of millions of cars, and the crimpers are less than 20 bucks
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Old 15-01-2022, 00:05   #10
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Re: Need wire connector advice

How about an automotive trailer conn or 2?
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Old 15-01-2022, 00:23   #11
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Re: Need wire connector advice

x2 on Weather Pack connectors. I use them regularly for low voltage connectors that can be easily connected and disconnected.

Not the brand name, but I use these and similar...


https://www.amazon.com/KINYOOO-Conne...NsaWNrPXRydWU=
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Old 15-01-2022, 03:14   #12
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Re: Need wire connector advice

I use a seven pin trailer plug.
Sits almost flush with the mast.
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Old 15-01-2022, 09:09   #13
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Re: Need wire connector advice

++ on trailer plugs, I use the flat ones to connect the wiring under my T-Bucket roadster. Squirt them full of silicone grease and they're pretty much waterproof, and they're 14 AWG.
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Old 15-01-2022, 09:53   #14
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Re: Need wire connector advice

I have used one of those nylon terminal blocks with the wire stuck under a set screw for years. A lot simpler than a connector and almost as fast.


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Old 18-01-2022, 14:25   #15
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Re: Need wire connector advice

I second Wotnames previous suggestion. D connectors. Clean and professional.
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