I have a 1000w power inverter in my truck to run various tools and charge my dewalt batteries. I would like to get a 3000 at some point. I am looking for a solenoid to male it so I can only run the inverter when the truck is running or on accessory. My inverter has a on/off switch but have forgot to turn it off at times and it has killed my battery. Does anyone know where I can get one and what I would need to do to hook it up.

Truck is a 2008 F350 5.4L

 

This one should be good enough for the larger planned inverter. Get a fuse tap and install it in the fuse box on a fuse that is hot with the key in run or accessory. Run that out and power the solenoid.

SOLENOID CONTINUOUS DUTY SPST 12 V 200 AMP - 77007

 

That's perfect. Thanks for the help.

 

A 3000W inverter operating at full load will pull about 400 amps DC from a 12V system or about 250-275 amps off a 24V system, depending on the conversion efficiency of the converter. Got that much juice available?

I'd run a tap to a fused "HOT IN RUN/ACCY" fuse to energize the relay, then run a separate large gauge fused wire directly from the battery positive terminal to the COMMON terminal on the relay, another same size wire between the NO relay terminal and the inverter power input, plus a same sized wire between chassis ground and the negative power input of the inverter. You can likely use the wiring already attached to the inverter for the last two wiring runs.

 

To the original thread starter; Look at the specs on the inverter you are using or buying. If the above is true, the relay I linked to may not be large enough if you fully load the inverter.

This inverter here in this link says it has a "remote operation jack". I didn't look up the instructions for this inverter, but you may find one that has a port on it where you could hook a small bosch type relay or something like that. If that's the case you would not need the large relay to handle the full load of the inverter, if they just need two small wires put together to bring it online you could use the bosch relay hooked to your fuse box for that.

 

Good info guys. Thanks for the help