On Saturday, November 19, 2016 at 12:52:58 AM UTC-6, wrote:
On Sat, 19 Nov 2016 00:49:09 -0500, "Sherlock.Homes"
wrote:

Thanks! One side of the bridge tab seems a lot easier to bend out than the
other but if I muck it up I've got another.

Am I correct in assuming with a tandem breaker if one circuit pops, the
other is shut off even though it's still OK? Does a tandem breaker show
which circuit had the fault?

I'm beginning to see some advantages in bringing out the Sawzall and all the
rest of the tools it takes to add a new outlet to very old plaster-lathe
construction. double frown

SH

That is one advantage of using 2 single pole breakers, handle tied. If
you have one tripping you can remove the handle tie to isolate
although in most designs it will be apparent.
As I said before it is recommended in a box with multiple circuits but
not required as long as you are not sharing the neutral.

I like the Square D breakers for that because of the red indicator window.(ヅ)ノ

[8~{} Uncle Square Monster