How many of you use ferrules on yor wire ends?

[Jackal66]

Hello,

I am just curious as to how many of you use wire ferrules on wire ends for screw-down connectors?

All of the factory wiring in my Hurco had it. It would seem a lot easier to keep stray strands from getting into another connector where it shouldn't be.
That is what appeals to me.

Are there any drawbacks? Do they corrode, or loosen when (2) wires with ferrules occupy one slot?

I guess if (2) wires were permanently located to the same slot, you could put them both in one larger ferrule.

There really isn't much info out there on this, and I don't have a lot of hands-on experience to reference from.

Thanks a lot,

JAckal

[mactec54]

Jackal66

This is a standard practice, I use them all the time, I also dab the end of the ferrules & wire with solder, this makes it even better if you use more than 1 wire in each connection, ferrule/sleeve, but not necessary

[Al_The_Man]

I use them, I picked up a nice Weidmuller crimp tool for them off ebay.
http://catalog.weidmueller.com/catal...tID=0567300000
It pays to ensure you get the right gauge size however.
Al.

[underthetire]

Not all the time. It really depends on what terminal block your using.

[BobWarfield]

I like ferrules too, but be aware a lot of knowledgeable types don't.

Marris F. (Geckodrive founder) and others on this thread:

Yahoo! Groups

I have read such comments in other places too. There seems to be some concern over whether they cause problems particularly when there is a lot of vibration.

Cheers,

BW

[Al_The_Man]

I like ferrules too, but be aware a lot of knowledgeable types don't.

Marris F. (Geckodrive founder) and others on this thread:
I have read such comments in other places too. There seems to be some concern over whether they cause problems particularly when there is a lot of vibration.
BW

I wonder if some of the detractors have done any subjective testing, I have found some of the problems are inadequate crimping or wrong ferrule size.
Weidmuller has been in the business of wire termination for many many years and have the products and the terminals that work well together.
There are also many other manufacturers in the business that sell these products, if there were serious problems out there, I think they would have addressed them or dropped the idea.
The thing is for the average hobbyist that is just building a couple of machines, they may not want to incur the initial outlay of cost of inventory and tooling.
Al.

[BobWarfield]

Al, could be one of those religious issues there seem to be so many of, LOL.

Cheers,

BW

[Jackal66]

Thanks guys.

Bob ,
That brings up an interesting point. I guess Marris & the others are referring to the clamp down with the screws and they have a top & bottom jaws with little grip-lines for clamping. ( Gecko type)


The wires on my Hurco are going into DIN rail mount terminal blocks ( see pic in link):

WAGO Corporation - Products - TOPJOB® S Rail Mounted Terminal Blocks

Since these have spring loaded jaws, it would seem that if you put a bare copper stranded wire in these, they would slowly chew the strands and one by one the wire would break down and leave the little pieces in who knows where?

Either with the ferrules or bare, the idea of a little solder to tin the ends sounds good to me.


I will probably go with the ferrules.

Thanks for the info,

Any other ideas and views are welcome.

JAckal

[mcphill]

FWIW, ferrules are required in Europe to meet CE certification....

[neilw20]

1. Never solder wires unless 100% supported. Reason: Wires will fatigue where the solder finishes.
2. With the correct size ferrule, crimped, there is a hermetic seal on wires. Firmly screwed onto ferule causes no damage to wires.
3. Wire wrap. Old, reliable, with correct pins, wire and tools. Hermetic seal on corners of square pins.
4. If a wire must be solder joined, 100% wire support with heatshrink, or multiple pieces to make it stiff enough.
5. Moving cables. High quality wires designed for movement. Cables NEVER strained.
6. Earth all shields only at the common earth point of the machine. Make one big mass of earths to a SINGLE POINT BUSBAR.

I like ferrules.

[Jackal66]

Neil,

That is a good point about the solder. Real similar to letting paint dry out in a paint brush. When you mess with it the bristles seem to break where the paint stopped.


Ferrules it is.

JAckal