BMW’s iX3 is the company’s first normal-looking all-electric car | Lrd12 Overload Relay

Meanwhile in my house (uk) we have a street lamp time switch with a single pole switch that looks like it was designed to handle 30A. It is beautifully engineered from brass that increases the on period as the days get shorter, I felt bad hacking it so that it would turn on my water heater for an hour twice a day, a job it has been doing for 17 years now without incident. Electromechanical is by far the best way for high current loads at any voltage as fatcas I’m concerned.

While contrast-detection AF systems these days are much faster than they used to be, phase-detection AF generally still has the edge in terms of outright speed. It also involves less hunting around the point of focus, since phase-detection systems can determine both the focus direction and the required adjustment. On the flip side, though, contrast-detection systems generally offer more precise focusing, since the image sensor itself is responsible for confirming the point of focus, without any reliance on the lens’s focus drive and AF sensor alignment being perfectly in spec.

I’d love to see a follow piece on how to work with High Voltage as well. Lots of interesting projects to do with microwave and neon transformers…

The main benefits of the RGC..32 include the fact it has the highest amperage rating of any 17.8 or 22.5mm wide solid state switching devices available on the market, DIN rail spacing over 22.5 mm platform, optional cage clamp power terminal for wires up to 3 AWG size, and energy savings due to lower power dissipation.

In Finland pretty much every household is wired with 3x 230V phase, with main fuses between 25-63A. Nominal voltage from phase to ground is 230V and phase to phase 400V. Load is split between phases, so that phase voltages would stay same, usually this is done by grouping different rooms to different phases, commonly 10A 230V per room sockets and lights.

Knowing the sequence of operation for this type of starting relay can help you diagnose, confirm, or rule out certain service problems.

Of course, you’re still responsible for your work, but you don’t automatically forfeit your insurance just because you added an extra lamp and it caught on fire.

That’s also a mistake in the article, because the house ground doesn’t exactly ground the house. It just grounds the appliances. You can still have thousands of volts between a table and the wall socket ground in a thunderstorm. Even on a normal day, you have about 100 Volts per meter in potential difference just from atmospheric charges, which is why it’s a bad idea to ground the computer you’re working on unless you also ground the table, the chair, the floor and yourself.

Xiaomi has announced the Mi Mix 3, the latest entry in its series of full-screen flagship phones. It’s yet another high-end Chinese device with a huge screen-to-body ratio achieved by hiding the front-facing cameras on a sliding mechanism — no notch required. Unlike the Vivo Nex or Oppo Find X, however, the slider isn’t powered by motors. CEO Lei Jun compares the design to older sliding phones and suggests that it’ll be relaxing just to play with.

I think the issue is more that 8A might be fine for a light but embedding it where another future operator will reasonably assume it is rated at 15A is not fine.

Pedantic FWIW: Afghanistan and North Korea and some banana nations use 110V. USA uses 120V/240V. Japan is the oddball, using 100V. Annoying because you can’t draw more than 1 kilowatt from a socket there (kettle, hair dryer, space heater…). And having lived with the three voltages (100V, 120V, 240V) on four continents, I’ll happily take the 120V supply instead of the 240V.

https://www.ul.com/newsroom/publicnotices/ul-warns-of-solid-state-relay-with-counterfeit-ul-recognition-mark-release-13pn-52/