wiring up inverter

Hi all,

I have a 300W inverter (pure sine wave) that I am looking at wiring direct from the battery. The booklet advises 30 Amp wire be used and recommends the unit is disconnected when not in use.

Even though it would be used infrequently, my intention had been to leave it permanently in the vehicle since specific wiring had to be put in place. In order to "disconnect when not in use" therefore I thought a switch would be the answer.

Finding a 30A switch has proven to be a problem. The only one I have seen is downright UGLY (a push - pull type). I assume if 30A wire is required the switch would also need to be the same?

Interested in what others have done in this circumstance. As I see it the options are:

1. Wire it up with no switch (meaning it is permanently on albeit not drawing much)
2. Include a 30A inline fuse and remove the fuse when not required
3. Switch it through a relay
4. When not in use disconnect the wires from the inverter and remove from the vehicle and "tape up" in some way the live wires that will still be there.

I am probably leaning towards #4 but would be interested in any comments.

Thanks in advance
Trevor