Difference between the D and D3 dies?

[Mark Twenhafel]

Is there a difference between the D and D3 dies? I used an Burndy H-crimp yesterday with a Kerney crimper. The Burndey crimp specified D3 die, and using the Kerney crimper with the die labeled D left it loose.

So I went ahead and used the O die to make the crimp tight, not closing the handles all the way. I know this sounds shady and sketchy, but it's not for current. This was the bond from a transformer to building steel, which was actually a 3/0 in the riser of this concrete building.

I'll take criticism and flaming in good faith, but I really want to know if there is a size difference between the D and D3. Thanks.

 

[Hv&Lv]

Is there a difference between the D and D3 dies? I used an Burndy H-crimp yesterday with a Kerney crimper. The Burndey crimp specified D3 die, and using the Kerney crimper with the die labeled D left it loose.

So I went ahead and used the O die to make the crimp tight, not closing the handles all the way. I know this sounds shady and sketchy, but it's not for current. This was the bond from a transformer to building steel, which was actually a 3/0 in the riser of this concrete building.

I'll take criticism and flaming in good faith, but I really want to know if there is a size difference between the D and D3. Thanks.

Yes, there is a difference although some crimps will call for either.

 

[Hv&Lv]

Just to add..
Here’s the exact difference..
You can see the D is a little bigger than the D3

 

[ppsh]

At least the Kearney and Blackburn H-taps are listed for D or D3. Sure it was the correct size tap?

 

[tom baker]

Interesting. A very obscure question, but yet the forum knows.

 

[petersonra]

At least you did not try to crimp it with a pair of water pump pliers borrowed from the plumber.