The Expanse is being turned into an RPG | 19mm Momentary Push Button

Regular gasoline costs about $3 per gallon where I live, so it’ll cost (26 / 46 * 3) = $1.70 to propel the Niro the next 26 miles after the battery is depleted.

So a 20 amp breaker is designed to take the load shift on startup. A 15 amp breaker will carry the nominal load, but that surge on startup will kick it every time. In the days before switching supplies the input voltage would vary from 108 to 115VAC where I did work. This occasionally caused breaker trips on the unprepared circuit. I learned to spec high enough to minimize that issue and keep a safety factor in play.

If he ever turns his car on its side so that the car jack is pointed toward ceiling and plugged into the evse as shown, then I’d worry about it.

That said, 12A @ 240V is only a little less than the most our Volt will use even on a proper charger, so it’s still a good thing.

If you read carefully the related articles you will find that this module is mainly designed to switch lights aka lighbulbs. A 8A Triac is more than suitable to switch any standard household lamp. Please check the bigger one in your house. How big it is? 100W? 200W? 300W? Average value in probably in 99% of the cases between 40 to 100W. Anybody can to the math.

I will tell you guys how to dim lights with relays, but first you have to tell me how you dim them when using a zero cross detection optotriac.

In the old days, waaay back in the 20th Century, you’d buy something from a vendor that had a good reputation. It was in their interest to keep their reputation, because that’s where customers came from, so they’d make sure to only buy their materials and parts from reputable suppliers. And they’d do the same, forming a chain of reliability and trust built up through experience and everyone’s mutual need to keep up a reputation.

Then when you step up a notch to the KV stage the safety rules change because air can now be a conductor.

Operating temperatures are another consideration. Assume the ambient operating temperature for this application ranged from 0 to +70°C. This would be within the MOV’s -40 to +85°C rating, and there would be no requirement for derating of surge current or energy across this temperature range.Taking high-line tolerance into account, a 275-V ac-rated MOV may be chosen for this example. Using a 2-hp, single-phase, medium-sized motor, the MOV’s required surge-current rating would be determined by the peak current induced at the motor supply. Assuming a service location for the motor and a line impedance of 2 Ω, it was determined that a 3-kA lightning surge was possible. In this case, one datasheet indicates a maximum clamping voltage of 3 kA at 900 V, which is below the 918-V suggested stator-winding withstand capability. If the motor’s operational life were estimated to be 20 years and specified as being able to withstand 80 lightning transients during term of service, the datasheet pulse-rating curves would verify a rating of 100+ surges.

I’m certainly pleased the US Air Force along with the wind turbine industry taught me just a few skill sets in getting that Level 2 service expeditiously installed.

When a circuit breaker has a lot of current flowing through it, it will get warm. The warm 15-amp circuit breaker shown below had a 15.6-amp hair dryer running for about 20 minutes, and it warmed up to about 17 degrees over ambient. It wasn’t especially hot, but it was definitely overloaded.

It’s impossible to know whether to recommend the new Corolla yet, because no prices or specs have been revealed, although the argument in favour of the latter looks certain to be bolstered by a greater than average amount of standard equipment. In particular, the active safety roster, which includes the ability to apply the brakes if a potential accident is detected at high and low speeds, is far longer than most.