50 Amp Transfer Switch Automatic Transfer Switch for RV, Speedboats 120/240 VAC, 50 Amp, Automatic Transfer Relay Switch

Awesome product great price easy install

Worked perfectly

flawless !!!

Smaller design made it easy to secure to the RV space

I had to redo this review because of some misunderstandings on my part, and wanted to leave a correct review, as best as I could. First, a professional opinion from the electrician that installed our transfer switches. The box really needs to be a few inches wider. There isn't sufficient room to route wires inside the box. It's typical for the conduit to be run to the box where it's convenient, then wires routed inside to connect everything. This box isn't big enough for that, so extra conduit may/will be required to get the cables routed directly into the box where the connections need to be made. Ok, on to my non professional opinions. There is a circuit board on the left side of the contactors that has a couple of capacitors sticking out prominently. These are easy to break off, and WILL KILL the board. It will not switch the contactors at all if these capacitors are damaged, and you can't get replacement parts from the seller, I've tried. It just isn't cost effective for the seller to ship those parts by themselves, which I understand and do not blame the seller for that. Just be careful, and make sure your electrician does NOT try to run wires, especially heavy gauge 6 AWG wire, right next to that circuit board. You will have broken capacitors and a defective product. You've been warned. After professional installation, which is absolutely required for the electrical code where I live, the transfer switch works perfectly well. We are using them daisy chained. In the first input box, we have the generator connected to the left input, and the AC grid connected to the right input. The output goes into another transfer switch on the left side. The battery inverter connects to the right input. The result is that when the Grid is operating, power passes through the 1st transfer switch, comes into the 2nd transfer switch and overrides the battery inverter supplied power. The left input is always priority when present. When we start the generator, it overrides the grid power, and allows us to load test the generator without needing to turn off any breakers. When the AC grid is down, the battery inverter is the source of last resort and powers our loads. When the AC grid is down and we start the generator, it takes over the load (remember, the left input has priority at all times). In our case, the generator provides 120/240 volts at 50 Amps, the AC grid is three phase 208Y, which we are using two phases to get 120/208 at 50 Amps. The battery inverter provides 120/240 volts at 30 Amps. The Generator connects to the building using a SS2 power connector (a non NEMA connector that allows 125/250 at 50 amps), and the battery inverter is using a more typical generator NEMA L14-30, which allows 120/240 at 24 amps continuously. Our loads are lower than that so it's all acceptable. The difference in 240 vs 208 volts is acceptable for our load, but you should check your specific requirements to see if that will work for you. In our case, the transfer switch doesn't care if it's 240 or 208, because the sensing and power for switching come from only 1 leg of power, which is true for both contactors. So in theory, you don't even need to provide 240 volts to this if you don't want to. A single 120v supply, wired correctly, will likely activate it, though the seller (and probably all electricians) would advise you not to do that. The downside is that the transfer switch will not recognize a loss of phase unless it happens to be the single phase that it's monitoring. I would recommend this product if you do not need fancy monitoring, generator automatic starting, etc. Those are not features that this product provides. MOST generator transfer switches are designed to operate with a specific brand of generator, and many transfer switches have no "brains" in them at all, relying on the generator to provide a signal telling them to switch. This transfer switch isn't like that. It has it's own internal monitor (on a single leg of power), and it's own internal delay of 20-40 seconds or so before it switches to generator. It immediately falls back to the right side input the moment power is lost on the left side. If these design constraints are acceptable for you, and you are going to be careful during install to not damage the circuit board, than this may well be the perfect fit for your needs.

We have a Heartland RoadWarrior RV and the old auto transfer switch had stopped working. I was very pleased to find that this replacement had the exactly the same layout. I simply had to disconnect the wires from the old unit and wire them up to the new one. Done! I can hear this unit click on and off when necessary as long as a very slight hum; normal sounds as far as I know.

Only lasted from December 23 to May 14 had to order another one.

Good transfer switch, easy to install, well constructed.

Je viens juste de l'installer et pour l'instant fonctionne très bien rien a dire. Un petit silement venant du contacteur, mais rien d'anormal. Je suis satisfait.

Exact Match for my camper. Works like it’s supposed to. Hopefully will out last original

Good looking product waiting to get installed soon.)

Parfait