How to Crimp Ferrules (and Why You Need Them)

A wire ferrule is a simple way to finish off the end of stranded copper wire and prepare it to be used in a screw terminal like you’d find on a charge controller.

Crimping a wire ferrule onto a stranded wire can turn a ugly, high resistance messy wire end into a neat and tidy, low resistance professionally finished wire.

[topnotchreviewer]

Great video. Thank you for NOT being a minute hog like so many other YouTubers.

[forevergoddessqueen]

I love how short and detailed the vids are.

[OttoMatieque]

I took your advice and used ferrules on my camper build. They definitely make things neater and cleaner, plus easier to install or reinstall. They also protect the end of the wire preventing individual strands from breaking off.

[explor]

As more and more people are going solar your videos are going to be invaluable for the next decade.

[destinglisson]

Been getting heavy into car audio and have noticed these being sold a lot. Had no clue. Now I do. Thank you 😅

[RustyCas]

Vibration can cause fine wire strands to break and ferrules prevent this. He probably goes into this on his blog, but a “square” crimper is best for ‘pockets’ that have flat contact surfaces. A “hex” crimp is best for pockets with a rounded surface, often seen on smaller wiring.

[nmartin]

Another quick and to the point video. Thanks.

[charleswilson]

Years ago I installed electronic equipment in industrial facilities. Some places wanted us to use ferrules to connect stranded wire to circuit breakers. The company bought insulated ferrules for us to use. But since we didn't know any better we tried to crimp them with a standard wire crimper. Since we didn't like the way it crimped we just didn't use them. now I know why.

[daves]

A tool/device (ferrule) I had no idea existed, and I’ve been working way too hard to get large gauge (2-6) wire into connections. MANY THANKS!!

[darylclark]

The ferrulles also are great in applications where there is vibration - stranded wire will vibrate loose without ferrules!

[Stefan_Van_pellicom]

Here in Belgium ferrules are mandatory for all flexible wiring in permanent installations. But I use them with ALL stranded/flexible wiring, even low voltage applications.

[themoabpearl]

I can’t believe how easy I thought this would be without watching your video! I completely thought I could just figure it out 😅

[sailor]

Nate, I've been following you and Steph for several years and I'm overdue in giving HUGE kudos to you two as your videos are hands-down the BEST tutorials regarding anything solar. Although I'm only in the planning stage of what it is I would like to build solar-wise, I will definitely purchase products via your links. Really enjoy the adventures you two share - keep the great videos comin'!!!

[richard]

I have just found your series of videos and am REALLY enjoying them. They are punchy and informative.

Thank you.

[euanmcgill]

Bootlace ferrules for the win! I would always use the insulated version, no need for heatshrink. Loving this series so far

[jimsjacob]

Discovered ferrules myself recently. Love them for all the same reasons outlined here…

[TRIWRXGUY]

Glad I came across your channel. You cover the topics so well and succinctly.

[redlefevre]

Well done series, im binging the whole Playlist. I'm competent in wiring but I genuinely appreciate your videos as you've taught me a few things. Thanks!

[oguy]

I didn't know this was a thing! I work with electrics a fair bit too.

THANKS SO MUCH FOR THIS VIDEO!

[MrRjohnson]

Thank you for being such a good teacher!