What size wire is rated for 500 amps?

Wire Size and Amp RatingsWire Size75°C (167°F)AWG(mm²)Aluminum350(177)250400(203)270500(253)31017 more rows

How many watts can 18 gauge speaker wire handle?

For most cases using home or car speakers (not subwoofers) 18 gauge (18AWG) is fine. 18AWG wire is good for about 50W for 4 ohm (car) speakers and 100W for 8 ohm (home stereo) speakers. For higher power systems or longer lengths, 16 gauge is a great choice.

What size wire is good for 100 amps?

The cable must have a wire gauge sufficient to the amperage of the subpanel—a 100-amp subpanel requires #4 copper wires or, more commonly, #2 aluminum wires, for example. (Aluminum is often used for feeder cables because the cost is typically much lower than that of copper wires.)

What size aluminum wire is good for 100 amps?

Size of the Wire/Conductors Generally speaking, you should be able to use 1 AWG aluminum or 3 AWG copper for 100 ampere circuits.

What gauge wire do I need for 1200 watt amp?

4 Gauge 4 Gauge Power Amplifier/amp Kit 1200 Watt Complete Install Wiring Kit Car.