Inverter wire size?

[freewayrandy]

So new to this, I'm wanting to connect a 425 watt inverter in my rig. What would be the minimum wire size to use for the 12 volt connection?

[larry_cad]

I=P/V

I=AMPS
p=POWER (OR WATTS)
V=VOLTS

I=425/12=35.4 AMPS

10G wire is rated 30amps.

I would go with #8

[freewayrandy]

A friend gave me the inverter and didn't have the manual but your info helps. Thanks.

[Gdetrailer]

Not to be smart, but, what does you inverter manual recommend?

Most inverter manuals will give you a chart with distance and wire size recommendations. Choose the recommended wire size for the distance and include a fuse near the battery sized to that wire size (fuse protects you from having your rig burn down to the ground if the wire or inverter shorts out)..

Small inverters like yours often come with short length of 10ga wire, 425W would be about 30A at 12V so 10 ga would be absolute minimum for short distance (less than 5ft), 8Ga might be better choice if distance to battery is longer..

[Lwiddis]

What’s the distance?

WindyNation’s wire charts will help you… https://www.windynation.com/jzv/inf/choosing-right-wire-size