T.Reed says there is no polarity switch. M. Thacker says there is. Who's right? It's an important feature.
1375871
NO polarity switch. just an ON/OFF button. The glasses are the best regardless!!!
1375872
There is NO polarity switch. If using a projector, you'll need to use the invert on/off to resolve issue (not a big deal)
1980477
So basically you use one block as all positive and the other block as all negative. It's cleaner and easier. You can not ground one entire side and run hot to the entire other side. If you are looking for a power block kept looking this isn't it.
1228663
The switches are not polarized. Think of them as a piece of wire that is continuous when the button is pressed. You can connect them with either terminal to either pole of your voltage source.
462476
It's the polarity which is reversed and don't ask me to explain that. I finally gave up and started using batteries. It works fine and the batteries last a pretty long time. Good luck.
1333753
It uses deans connectors which determine the polarity. Search images of deans connectors.
2075823
There is no polarity since the meter is set to measure Ac volts and Ac amps the green wires just go to the green terminals
1550328
No, no polarity detector. You have to change the connection to measure charge or discharge currents.
1502772
Indeed. And since you know to ask the question, then you know that maintaining the polarity is key! It's a nice unit: very receptive.
258224
I'd like to note that this can actually be a feature!! In fact - I am specifically looking for a hdmi switch that DOES NOT auto sense. Can be very useful when switch is hooked up to 2 computers and turning computers on/off.
1630283
Sorry, but I don't remember. Mine was used with a 12v DC converter for a light strip, so polarity is a definite concern
1963487
Polarity should not be an issue. You can come out of the power supply only one way with the main wire, then into this "jumper" and out. Noting colors (e.g. red to red, ensure they match. If not cut and splicing will be required. Excellent product.
1391249
I had the same problem (question). The label on the hour meter says that the connections are polarity sensitive but when using to monitor AC usage, there is no polarity. I communicated with the vendors customer rep., and was told that they had engineered the counter to be able to be used in a AC or DC application, but to save money with parts that had already been labeled, they continued to ship the new design with the old labels. They told me to use the meter (counter) without regard to the plus and minus lables. I tried it and it works.
1026574
Not sure off top of my head. Normally I use a voltmeter to check these things. Properly designed circuits will have a blocking diode to prevent polarity reversal issues. Those that don't, may have smoke issues!
958564
I can't answer, I threw them away after reading from a few reviewers that the polarity is switched (neutral and common wires are backwards.) I suggest you seek out an alternate item just to be safe.
796692
No, it is not polarized. Most plugs have a wider prong then the other one. This does not, both prongs are the same.
391453
No neutral required. if you are uncertain which product you want, call their 800 number. The man I spoke with worked for Motorola for 20 years and knows the Intermatic products inside and out. He was amazing and told me exactly which one to order. My house was built in the late 1920's and only has two wires. This one works great.
305358
As some have already answered correctly, it is "2 prong" and polarized."Polarized" meaning one of the two prongs/slots is slightly wider than the other.