Baomain Universal Rotary Changeover Cam Switch SZW26-63/D303.3D 660V 63A 3 Position 3 Phase with Master Switch Exterior Box LW28-63/4

This is useful for switching between inputs, outputs, single or split phase, depending on how you choose to wire it. The terminal screws are pretty heavy duty, no issues with connections. Mounts easy, holes for wires already there and the grommets included.

Used in an RV Solar setup, two inputs to ( shore and inverter) one output. No instructions, but I used jumper wires on one side (output), putting the shore and inverter input wires on the other, top and bottom respectively. So far the setup works for my needs.

Works great for our electric car charger. Our circuit breaker did not have enough amperage. So I made it to where you can either run the dryer or charge the car. If I had to do it again I would get one with a bigger box, because it was a pain to close with the wires.

Excellent switch with a very good and audible detent in each position. Easy to wire and came with supplies to seal the switch against the environment. Only gripe I have is that the plastic was too thick around the knockouts which made them difficult to remove. Not a big thing with a quality switch.

The media could not be loaded. Used switch to power between car charger and heater. Used a bigger junction box, but switch functionality was super and worked as intended. 👍🏻

Able to set up switch as a changeover between two kilns. Had to put jumpers on the right side terminals, and then wire each kiln to the left side terminals. For 6 gauge wire, the box is a bit small and it was very difficult to get the wires secured and seat the switch in the box. Switch seems sturdy, but could feel the strain on the assembly when trying to seat it in the box. So far, wires remained secure and switch appears to be working. Will have a full firing cycle later this Spring and can update later.

Very durable

This is a good deal for what it is. There are a few finer points to be aware of.1) Multiple selector switches can be expensive. Relatively speaking this switch and enclosure is a real deal.2) For the electricians among us note the contacts are not "arc or flash" proof. There is a warning to not switch under load.3) My loads are 30A, #10 stranded wire. The terminal pinch plates are arched and barely compressed the #10 copper. It was necessary to position the wire "just so" in order to make solid AND secure connections. Novices can easily experience heat damaged terminals (over time) and wires that spring free if they do not pay attention.4) The enclosure is quite deep, providing decent wire bending space but two things.a) the knockouts are not positioned properly so you'll have to drill your own...not a big deal.b) with four anchors in the back the box is "twisty" when the switch is turned...again, not a big deal.Now sure if I would purchase one of these for a professional installation unless flashing or arching was not an issue and, at that, I would use a standard nema box rather than the provided Euro/Asian sized box...the switch and cam can be easily adapt to a standard nema box.