[RE-wrenches] Large ferrules

[Ray Walters]

I always found the hexagonal crimpers to not work well with the thinner 
lugs that we usually use for batteries.  The hex crimpers are good for 
the UL listed heavy wall lugs however.  I have a couple of different 
crimpers that work like the one below: indent on one side and V on the 
other.  That type works well for thinner wall lugs.  I have had a 
Greenlee model, and currently have a chinese one that is fine, its 
similar to this:

https://www.amazon.com/TEMCo-Lug-Crimper-Tool-TH0020/dp/B00HJYY5GA/ref=sr_1_29?crid=WJPOB8FQFZXS&dib=eyJ2IjoiMSJ9.HT-HDXBYyFjjk5TjKt6QKMkppx3Yxu_-ZdlB0Sd3_J6augD4A86iARok1LffooFx8LGsTHJmwZc_UedNJxKIwyYytfXTfV2tQcAhwV6L8yumAnyrKvHPtaWH948Nltb0dKJuv3_u-lMemWu2LUDEZ6xm2sVUjmY8EwoyUSquBSZZBDxsnKdBwpQ_AbggEE3EnZTTCzA1rQeMAQDkteCHM8vZossevOTUPVg1zjOkILazLLobN078ghbgieEkW5zK9cyKmuRKPWijPTRAF0RNKwIZwpvFWwjafPVTtX4B8gQ.rHXx_G8ZbhOUVr4Yq8nYy9fvO0CiOzvnsOTtKb_xZNI&dib_tag=se&keywords=large+wire+crimper&qid=1756315604&sprefix=large+crimper%2Caps%2C212&sr=8-29

Ray

Remote Solar

On 8/27/2025 11:20 AM, MDElectricSolar via RE-wrenches wrote:
> I use something like this, works great:
>
> image0.png
> Michael D Nelson
> MD Electric & Solar, Inc.
> 707-684-0064 mobile
> 707-884-1862 office
> www.mdelectricsolar.com
> www.facebook.com/mdelectricandsolar
>
>
>> On Aug 27, 2025, at 7:41 AM, William Miller via RE-wrenches 
>> <re-wrenches at lists.re-wrenches.org> wrote:
>>
>> 
>> Friends:
>>
>> More inverters these days present lugs for battery connections 
>> instead of studs. I bought some 2/0 and 4/0 ferrules to accommodate 
>> the fine stranded MTW we use. I have a cheap hex crimper but the 
>> results are poor with a sharp “wing” on either side of the crimp.
>>
>> What does the hive mind suggest for a ferrule and crimper for these 
>> larger wire sizes?
>>
>> Thanks in advance.
>>
>> William Miller
>> Miller Solar.com
>> 805-438-5600
>> www.millersolar.com <http://www.millersolar.com>
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