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Thread: Insulated crimp terminals
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4th Aug 2020, 10:14 PM #16Most Valued Member
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Insulated crimp terminals
BaronJ - I’m blaming you for this...
You just had to mention terminals not coping and motor failures:
Went in for dinner tonight and when I came back out the internet radio wasn’t connecting to the wireless. Long story short, tracked the issue down to this cap lead on the compressor.
Steve
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5th Aug 2020, 05:26 AM #17
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5th Aug 2020, 05:29 AM #18
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5th Aug 2020, 09:38 AM #19Member: Blue and white apron brigade
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AC and DC ratings even for quality switches can be quite different.
I've seen switches with AC/DC ratio ratings from 1:1 to about 20:1 with prices often in proportion.
Most 250V rated switches (even some decent quality ones) have AC/DC ratio ratings between 5 and 10 to 1, so a 250VAC/24VDC switch is fairly common.
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5th Aug 2020, 10:28 AM #20Most Valued Member
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bootlace ferrules are being used in most airconditioning units these days...both low and hi voltage.
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5th Aug 2020, 10:31 AM #21Most Valued Member
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5th Aug 2020, 10:39 AM #22Most Valued Member
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5th Aug 2020, 10:56 AM #23Member: Blue and white apron brigade
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8th Aug 2020, 12:02 AM #24Most Valued Member
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Insulated crimp terminals
Decided to buy a mixed box from ebay to use for low current/voltage non-critical jobs and testing, and keep the decent brand name terminals for use on real stuff.
So I grabbed one of these boxes as it had most of the types I needed https://www.ebay.com.au/itm/400-pc-A...x/112212276904
Thought you might be interested in the difference between a branded (Narva) terminal and the equivalent size that came in that mixed box:
Narva at the top, cheapie at the bottom of photo
Narva:
Thickness of ring material: 0.75mm
Thickness of insulation: 0.9mm
Cheapie:
Thickness of ring material: 0.5mm
Thickness of insulation: 0.7mm
Steve
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8th Aug 2020, 01:51 AM #25
Hi Steve,
The ones at the bottom are automotive ones ! Touch the insulation with a soldering iron.Best Regards:
Baron J.
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9th Aug 2020, 01:47 PM #26Senior Member
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I found these inside a carpet cleaner yesterday... 20200807_201705.jpg
I found the insulation a bit later...
(yes, it tripped the cb. And I had to completely dismantle the thing to get to it)
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9th Aug 2020, 08:15 PM #27Diamond Member
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Seeing as we're talking all things crimping, I don't crimp these kind of terminations often, but when I do, I'm always unsure of which way around I should be using my ratcheting crimper, as the anvil has two distinct jaws, one with a bigger void than the other. I assume the bigger jaw is meant to smoosh the plastic sleeve onto cable's insulation, while the tighter jaw is doing the actual electrical crimp through the plastic sleeve, onto the metal of the terminal and the copper of the exposed cable. Do I have this the right way around?
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9th Aug 2020, 08:29 PM #28Most Valued Member
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Yes, you have the crimper the correct way round. I use either a Crescent, or PressMaster tool at both home and work, both have directional dies, the side that forms the plastic creates a lead in that is intended to provide a degree of flexibility whilst maintaining mechanical protection.
Pretty evident when you stack Chinese cheapies up against Name brand gear that there really is no comparison. Personally, I don’t use insulated lugs unless I have no other option. My preferred means of connections is with a Deutsche Connector.
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14th Aug 2020, 01:20 PM #29Most Valued Member
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Coincidentally I've been looking at options for connectors on my landrover ute project. Apart from the original connectors being rubber plugs with bullet connectors its an '85 model so needs a complete rewire.
It had come down to either Deutsche or the typical "waterproof" style connectors like these:
https://www.ebay.com.au/itm/10X2-Way...V/392863613594
Having another look just now I noticed the major difference (apart from price) is in the actual pins at the cable entry end. Deutsch is a complete tube, whereas the "waterproof" auto plugs are the couple of small tabs that lock down onto the insulation.
Now that I've decided to use Deutsch .... any recommendations on crimp tools etc?
The DT range of plugs will do 99% of what I need and since I have nothing currently I'm thinking about something like this kit to get me started: https://www.ebay.com.au/itm/Genuine-...0/323947365215
Any thoughts?
Steve
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14th Aug 2020, 04:42 PM #30Diamond Member
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This kit might be better value as you get more connectors. Not sure if genuine or not though.
https://www.ebay.com.au/itm/Deutsch-...frcectupt=true