Xantrex 8080915 PROwatt SW Auto Transfer Switch

I have an inverter for my 110 fridge for when I'm driving or don't have shore power. This device works perfectly as when I plug in a short power it flips over automatically to the shore power source and if the short power disconnects it runs off my inverter if it's on. I tried another brand before on Amazon and it popped of the breaker on the shore power and the inverter where this one worked perfectly. Definitely recommend it. I do not know how durable it is but for right now it's working. I had to buy a female 15 amp plug end for the fridge to plug into on the device but those are only a few dollars. The wire that came with the plug went directly to my inverter and the other wire went to the shore power hardwired in.

I am using this as a sump pump backup control unit, as we have frequent power outages. I maintain (2) group 27 deep cycle marine batteries with a Schumacher SC1609 which are hooked up in parallel and wired to an Eastwood 2000 watt pure sine wave power inverter. When the power in the house goes out, this unit immediately switches the power coming in off the street to the battery/inverter system automatically to run my 120 volt sump pump. When the house power returns, it immediately, automatically switches back to house power. It works great and the instructions are pretty much idiot proof if you know how to wire simple household receptacles and such. The only down side to this unit that I can see is that the manufacturer should make the wires coming out of the unit about 12 inches longer so you would have more wire to work with in the installation. The wires are nicely marked however, so you know where to hook up each wire.

I bought this to switch over to an inverter in case of a power outage (my sump pump runs a lot). This is sturdy, and works great!

It doesn’t switch fast enough for electronic not to reset. But it is convenient.

This is a 15a transfer switch so if your load is higher than 15a this won't work for you. I installed the first one in a shed out back to protect a chest freezer there. I have shore power as the primary power and the inverter input is from two deep cycle batteries and a Xantrex sine wave inverter. The batteries are kept charged by solar panels and a solar charge controller. If power is lost this should be able to keep the freezer cold for a very long time. The transfer switch is easy to install. It comes with one 15a plug installed for grid power but the inverter supply and the output line is open wires. I bought two three prong plugs (male/female) and wired the plugs. You just have to make sure you connect the white and black wires to the correct terminals. I also want to say the transfer time is very fast. When I tested it I was watching an LED light and it didn't even blink during the transfer. Also it is NORMAL seeking power meaning when the grid power input has power the switch will go this source. For the second transfer switch I plan to connect to my refrigerator inside the house. The primary source I want to be a a solar generator that is kept charged by solar and the backup supply will be the grid power. If there isn't enough sun to keep the solar generator charged then the switch will transfer over to the grid to keep the refrigerator powered. This will save from 1.5 to 2 kWh/day in utility power cost. I recommend this transfer switch for projects that are less than 15 amps.

Had looked for this type of switch for a long time for use at our cabin in remote and deep woods in S Indiana about an hour from a major city. We are in a big valley on a small lake and do not have interior cell service with out our Wilson 70 db booster (a must have is the newer self adjusting unit that always maintains reception and not the older manually adjusted units). We had almost no OTA TV with out Winegard LNA-200 boosters on 2 antennas in attic and a Denny's stacker UHF/VHF antenna high above roof, and now have 21 stations and all major networks in perfect HD. Bought a used 15 device Verizon 7730L hotspot (using the little known Verizon no contract $65/mo UNLIMITED data only available on their PREPAID plan with auto pay) for internet, Netflix and Amazon TV (binge watch in high def w/the unlimited data plan) and to now run Amazon Cloud cams and Canary security cams. When power went out as it often outdoes with power cables running through the woods, these electronics all went down. You had to be there in person in the second floor utility closet to switch the Belkin 12-Outlet Power Strip Surge Protector with 10-Foot Cord that powers all the boosters including Wilson and a Netgear Nighthawk WIFI extender, from the AC plug to then plug into GpPower's 175-Watt Modified Sine Wave Inverter (no fan =low draw) and then clamp onto the deep cell trolling battery next to the inverter. Now with this badboy transfer switch installed, when the AC power goes off, it auto switches to the plugged in inverter connected to the deep cycle battery, and then automatically switches back to AC when restored. Ran long USB cords to some of the cameras off the same surge strip so they also function when AC power is out. Wilson booster draws 20W which is .17 amp which means that deep cycle trolling battery could run everything on the power/surge strip for a long, long time. Will prob run a long power cord to the hotspot which is near the Wilson interior panel downstairs. BE SURE that you order and correctly wire the 3 prong male adapter plug and female adapter plug for similar uses, as 2 wires from the transfer switch have no connectors. It comes with a marked 3 way male plug to plug into the inverter. Black wire is hot and is for the narrow flat plug, white wire is the return and is for the wider flat plug, and green is ground. I'll try do an update in a few months, but so far it's perfect for what we wanted. Now my wife and kids can make calls and use the internet from inside cabin if power is out, with out me trying to explain over the phone how to connect to and switch on the inverter in the storage closet by flashlight. That is priceless and calls for a beer.(Update 1/8/20)Still working great. When the power goes off, auto switches to deep cell batter on 175w inverter to power wifi security cameras. The jetpack mifi has its own large battery so we can still have the peace of mind with security during power outages.

I like to keep it simple, no need to power my whole RV with batteries/inverter, so I just run this unit on the living room circuit. Works flawless and saved me a ton of money by not powering the entire panel.

Installed this in my travel trailer off of the inverter, works exactly how it should and is silent too, was expecting Atleast a click when it comes on but it’s dead silent, 10/10

This is a well made switch which operates quietly, is relatively compact, and does what's supposed to. Only complaint is the wires are a little on the short side for my installation. Overall, though, this works really well.

It would be nice if the wires were a little longer

I used this in a work van for shore power and inverter to power plugs, it simplified the whole install having this unit take care of the switching so I wouldn't back feed 120V into the van.

Quality switch which I use to keep my sump pump working in case of a power failure. I'm very happy with it.