Terminal connectors

Aug 7, 2021
164
O'day 28 Casco Bay
I have used both cheap crimpers and cheap connectors. I found that it's better to use good connectors with cheap (properly adjusted) crimpers, than expensive crimpers with cheap connectors
The Klein Tools Ratcheting Crimper I purchased was certainly not the cheapest, but was recommended by several Field Service Engineers I work with. Colleagues and friends in the trades are my usual go-to source for advice.
 
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Sep 24, 2018
4,531
Catalina 30 MKIII Chicago
The Klein Tools Ratcheting Crimper I purchased was certainly not the cheapest, but was recommended by several Field Service Engineers I work with. Colleagues and friends in the trades are my usual go-to source for advice.
I have the same one. It works well when properly adjusted and with quality connectors. If using cheap connectors, you'll have a high rate of failure. I saw upwards of 50% failure when I pulled on cheap connectors immediately after crimping.

I've since upgraded to the HST crimpers. It's a night and day difference. I can't recall any failures that weren't due to my own negligence.
 

colemj

.
Jul 13, 2004
1,075
Dolphin Catamaran Dolphin 460 Mystic, CT
The Klein tool looks like a double crimper. This is specifically for double crimp terminals. Single crimp terminals should use a different tool like the HST crimper mentioned.

Double crimp terminals should be used on a boat, but few do. Probably because they don't come in heat shrink versions, so require separate heat shrink tube.

Mark
 

colemj

.
Jul 13, 2004
1,075
Dolphin Catamaran Dolphin 460 Mystic, CT
This is a pain.
Agreed, but is probably why they aren't used more. Double crimp terminals are really the best choice for a boat, as they crimp the terminal to the insulation also, which helps with movement and vibration.

To reinforce your opinion, I have a full complement of double crimp terminals and the correct crimper for them, but almost always use single crimp heat shrink terminals. Lost count of the number of times I installed a double crimp and realized I forgot to slip on the heat shrink first.

Still like the double crimp ones for tiny signal wires because of the added support of crimping the insulation.

Mark
 
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