Wire protection nail plate for rough cut 2x4?

you worry too much.  it is always possible for some fool with a sawzall to hit an electrical line inside a wall.  just use the standard ones and put them in the middle of the stud

There is not such thing. Plates to protect wires inside walls from nails/screws/etc have nothing to do with the framing material. The studs are the LAST place the plates would be useful. In fact, that is the one place you absolutely DO NOT want to use them.

Nobody uses rough cut 2x4.  They are all planed wood. By the time you add the 1/2" gypsum board on top of one side that makes it 2". Put gypsum board on the flat of the 2x4 makes the wall 4 1/2" thick.  Wiring run down the center of the 3 1/2" flat of the wood.  Nobody is using 1 1/2" nails into gypsum board.

Obviously you are neither a carpenter or an electrician.  These guys know this.

Never mind figured out the right key words to start finding what I need.