What do they make that you can trace a wire from Device or Motor to the Panel to get the correct circuit without shutting the power off. Some of the loads run 24/7 And are not marked correctly.
Both 3 phase & single phase.
Thank you
Yoopersup

There are breaker finders that insert some kind of signal on the wire that you can pick up with the tester at the breaker end. The one I have is 120v only tho (a wall wart looking sender). I put a 1-15 receptacle on a pigtail with some insulated clips so I can use it on a circuit without a receptacle handy.

I tried a couple different tracers that are plugged into an outlet and have had some success and some failures. When I'm turning off a plug circuit that really has to be right, I built a box with a 4 amp cycling load so I can verify the circuit with a clamp-on ammeter.

A telephone toner will work on a dead circuit.

So can I ask what do you use for cycling?
I've been looking for one of those flashers people used to use at Christmas, but they don't sell them where I am.

Thanks

For a cycling load, I have a couple magnetic heaters inside a 10x10 JB with a heat sink from an old VFD opposite the heaters. They cycle on for about a second and off for about 3 seconds.

It takes about one second for an ammeter to give a good reading. The off time is longer to reduce the heat.

I have an ammeter with forks that slip over the wires so I don't have to clamp on to each wire.

Sometimes the panel feeders have a steady enough load that the phase can be determined, which reduces the number of tests on breakers.

This is a result of an incorrectly labelled breaker that the circuit tracer also incorrectly identified. It's a funny thing. If the power goes out on computers, everyone goes outside for a smoke. If an electrician makes a mistake, they want to see blood on the walls.

Trust me, when the computers are down, there are still plenty of people who want to see some blood on the wall.

Most the Loads I am talking about are 3 phase 480 v motor loads.
120 Volt loads are not a problem/
Still Looking