Nxtop 6mm knurled Shaft 12Pin 1 Pole 11-Position Selectable Band Rotary Switch 6 Pcs
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Voltage and current aren't specified on the item itself. I wasn't concerned because my use was limited to 12 volts or less, with a maximum of 30 amps.
As shown in the illustration, the shaft has a flat.
I'm not sure if it's plastic or not, but it is. As a result, low voltage/current applications are likely to be safe.
Hello, there's a knob on every set.
Selected User Reviews For Nxtop 6mm knurled Shaft 12Pin 1 Pole 11-Position Selectable Band Rotary Switch 6 Pcs
The number of contacts is much higher than zero. I (an electrical engineer) put the switches through their paces and was very pleased with the results. These are well-made, with a rotary knife tab that separates a pair of spring jaws to make the electrical contact; however, keep in mind that they are break-resistant. before- Make switches so that your different contacts are never shorted to each other, even if only for a fraction of a second as you turn the switch; instead, you'll have a momentary open circuit as you turn the switch. As a result, think about it when you're creating your designs. br>br>Contacts are made of 22 gauge spring steel and are solderable due to nickle electroplating. (I'm pretty sure it's metric, not 22 gauge, but it'll do for now. ) The detent is extremely powerful and is made up of a steel wave spring and a double ball roller. This isn't a switch that'll be tripped over by chance. It's difficult enough to deliberately switch it on. If you want, you can bend the steel wave spring to lower the spring force and make the switch lighter and easier to turn. br>br>Like the majority of Amazon's electrical reviews, the 0. A complete fabrication is a 3A contact rating. It's highly likely that the seller made it up on the spot and has no idea what it means. But, for once, the truth triumphs over deception. These are extremely durable contacts. "Is that all you got bro?" the switch laughed when I tested mine at 2 amps. " The exact results of the test were: 1. For 30 seconds at 98 amps, there was no discernible temperature rise in the contacts, and contact resistance was zero. While under load, 068 ohms were measured. br>br>In general, these switches can handle at least 1 amp continuously and much more when needed. The only drawback is that because it is a break before make, if your load is inductive, you will see a lot of arcing when switching. If your circuit allows it, diode or MOV bypass is highly recommended. Because the switch contacts are not arc-resistant, they will quickly degrade if used to switch large inductive loads. Unless you include external suppression circuitry in your design, switching something like a DC motor will likely ruin the switch in 50 operations or less. br>br>The only thing I don't like about these switches is how big they are; they aren't small. a diameter of more than 2 inches As a result, if you're designing a control panel with multiple switches, it'll be a clumsy mess. One with a much smaller footprint would have been preferable. But, given the true current rating, I suppose it's no surprise that it's so large.
As the inductive winding switch for the loading coil in a QRP (or low power) antenna tuning unit, these are ideal. To tune your antenna in line with the radio, simply add one variable capacitor for an L network tuner or two for a T network tuner. Most people are unaware that they can be used solely for shortwave listening, so I have a few to incorporate into a radio for antenna tuning and matching or to mount in a separate box for in-line use. Look up for inspiration; Matching impedances.
The stop isn't specified as being fixed or adjustable in the description. It's locked in place at the most recent position. Aside from that, it's a decent switch. I was able to add a fan stop at position 4, giving me off, low, medium, and high settings.
Keep in mind that the contacts are rated as 0 by the seller. 3 Amps.
Mel.
It was the ideal package because a decade box usually has six dials, so it was all in one place.
Used as a digital input to an Arduino project. br>Good quality for the money. br>Need the knob.
I didn't expect much quality for the price, but they turned out to be nearly identical in terms of quality. Some of the name-brand switches aren't for the faint of heart. The locking detents are heavy and solid. Soldering the turret holes is also a breeze. They're a little big for one, but they'll do nicely in my Decade Resistance box.
This switch has 11 positions and is very nice. It's difficult to turn without a knob attached, but once it's in place, it has some very distinct stops. If you order these, make sure to order the knobs as well. I'd recommend knobs with a screw-locking mechanism, i. e. a screw in the back of the knob to hold it in place.
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