TV'S PICTURE clarification and circuit breaker question relative to wiring

One post is a ground for the light. It looks like it is the bottom one in the picture. The other two are line in and line out.

Not positive on how TVSs work, but I think this hookup may not help.  Since the outside rails are connected, I think the spike would go around this circuit on the unprotected outside rail.  A normal connection with the power wires attached to the lockon as normal with the TVS between the two connections (keep as is in picture) should work better.  

The hookup shown should work fine. Though I would solder them on along with the feeders.

John H posted:

One post is a ground for the light. It looks like it is the bottom one in the picture. The other two are line in and line out.

With a 12vdc led switch, and 18 vac track voltage, connect the earth pin from the led to ground thru a diode with the arrow pointing toward ground.

It may not light, anyway. The picture shows 250VAC, so no diode needed.

I doubt the LED is rated for 250 volts!

I doubt it's an led.

If it's driven from the switched voltage, it's probably useless as an indicator in this application.

That's what I meant when I posted that it probably won't light.

The 12 vdc automotive switches that look identical are a better choice.

The one he is showing is a 10A breaker, not a switch.