Baomain Changeover Switch Control Rotary SZW26-20/0-3.2 4 Postion 8 terminals Cam Switch 660V 20A

I’ve purchased many electrical items from Baiomain these last few months and I’m pretty happy with the quality. Products from China are hit and miss, quality wise.. but this switch is top shelf! Nice, positive switching detents, good quality overall fit and finish. I purchased the optional plastic mounting box for this switch also. It is really nice but is the typical “ non US style” of design. Not UL or CSA listed, has metric hubs, cord grips are included but the box must be adapted for use with USA standard conduit sizes.. all in all, very happy with this switch

Ease to install and works well

Okay install and worked for 3 speed motor with the jumper suggested in other review. Very nice build. Durability will be seen over the years. If it is durable ( 20 yr ) it is a value. If I have to replace it in 2 years, it is worthless. It does feel like it should last.

This is a reasonably good quality product that will work well for my application. I am using it in my travel trailer to switch from shore power to inverter to generator. Simple and works perfectly if you add a jumper between terminal 1, 3, and 5 then one of them to the distribution panel. We use a maximum 30 amp circuit.

I was able to replace the worn out selector switch for the two ACs in my RV. But, if you are not comfortable with electricity you might want to have someone who is take care of it.

Switch worked fine in controlling the motor, but I had to use an Ohm Meter to figure out which connections to use since there was no switch schematic with the switch. There were 6 screw terminals labeled 1 through 6. There were 4 positions on the switch 0 through 3. In switch position 0, nothing was connected - all connections Normally Open (NO). In switch position 1, terminals 1 & 3 were closed; in position 2, 2 and 4 were connected and in position 3, terminals 5 and 6 were connected. To control the motor I connected Line Common to motor common; and put pigtail wires on terminals 1,3 and 5 and connected those wires into a 4-way push connector where I connected Line Hot. Then terminals 2, 4 and 6 were connected to motor Hi, Med and Low speed connectors. So far everything works fine. Had to drill 4 holes in panel for the switch screw mounts and a 5th hole for the shaft. Would have been nice to have had a drill template with the switch.

Well made replacement switch. Does not include instructions, but not hard to figure out with a tester.

Good switch for what it is. There's no common line in, the instructions are all in Chinese, and the numbers corresponding to the terminals don't mean anything. All of that is easy enough to overcome if you have a basic understanding of electricity. A quick run through with an Ohm meter will get you set up.