Zinsco circuit breakers

I mostly see Eatons, Siemens, Square D, for residential 200A and under panels out here in So Cal. Must be EUSERC rated, ring type.

If you’re overhead you should be able to go 200A.

You have to call in for an electric co. Meter Spot (Tustin) before you replace or buy anything. Electric Co. may need to upgrade your OH wire. Almost always in your particular situation no cost to you since you are “adding load” IF wire needs replacing.

If it’s UG, that’s a different ball game.