16-channel solid-state power controller for military and aerospace applications introduced by DDC | Circuit Breaker Parts

A steamy day on the flat roof of a building will let you feel how many inches the 480 can sting your fingers from also.

Don’t describe the kind of ceiling fan or light fixture you’re looking for and expect me to find one that fits your vision perfectly. Go to the hardware store and pick up your own items so you can guarantee they’re what you want. Just get in touch with me before you buy it in case it won’t fit correctly. Plus, find out what electricians wish you knew about batteries.

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We recently had a chat among the Hackaday writers about how we could approach this subject. The easy way out is to be all Elf-and-Safety and join the radioactive anthrax crowd. But the conclusion we came to was that this site is a resource for hackers and makers. Some of you are going to lift the lid on boxes containing significant voltages no matter what, so we thought we’d help you do it safely rather than just listen for the distant screams.

WASHOUGAL — To hear Shirley Scott tell it, this town’s recent drive toward proliferating public artworks was born out of…

In the second week, I’m not even sure why I did it, I was working on a pinball machine and measured 240V between the chrome plates on the front of the 2 pinball machines to either side of the one I was working on. The electrician had “forgotten” to hook any of the earths for the whole building.

It’s also worth noting that some of the quibbles, such as wind noise and the slightly fidgety ride, are still being worked on. What appears to be a good car could yet get even better.

Ahh, my late, late night read of the datasheet for the MOC3041M, which the schematic initially? called out but then was changed to a MOC3041 had the mains load being carried by the MOC3041/M triac, not the BT137 triac. Good catch. The triac should still be able to handle 15 amps, not just 8. And I agree, I don’t see any heatsinking.

It’s a 750W pump. Since it is running on 220V, steady current would be ~3.5A, so inrush current could be as high as 20A, according to some sites I’ve just found. Doesn’t sound awesome.

To me, this is like the equivalent of cheating on your math homework by looking for the answers at the back of your textbook. Or worse, like getting a hand-me-down copy of Where’s Waldo and when you open the book, you find that your older cousin has already circled the Waldos in red marker. It’s about the journey, not the destination — the process of methodically scanning pages with your eyes is entirely lost! But of course, no one is actually going to use this robot to take the fun out of Where’s Waldo, it’s just a demonstration of what AutoML can do. Reed listed a few more possible applications: “Maybe a fun use would be seeing what cartoon character the AI thinks you look closest to? Maybe could detect comic book forgeries?”

Now we’re getting into more serious stuff. The contactor is a relay that converts the low-voltage signal from the thermostat into a signal to switch on 220V power to the compressor and condenser. When these contactors fail, the A/C unit will go down. They are a cheap and easy to replace. Check the owner’s manual to locate the contactor and replacement model.

Power outlets in homes—but not businesses and other buildings—are required to have tamper-resistant receptacles, which prevent kids from getting hurt when sticking objects in the slot. At first glance, the tamper-resistant receptacles don’t look different from the ones without the safety feature, so read the label closely if you need to buy a new one. They’re a little more expensive, but I’ll send you back for another if you don’t shell out the extra money up front.