The end of Instagram as we know it is here | 220v Contactor Relay

In cases of energy shortfall, we could apply 3% or 6% voltage reduction from our central control, to shed load. (along with asking manufacturers to reduce load, part of their contract) Before real load shedding, switching off supplies. I know. I was a control engineer. Admittedly a few years ago

i built the rig that day. I put an ammeter with max hold on a circuit, plugged the circuit into a known 20 amp connection, and put a load on the circuit that simulated the instrument. Turn it on, 22 amps max hold, 13 amps nominal.

If you insure that your HV and LV systems are completely separate, and joined only by UL registered galvanically isolating components, only then can you be prepared to say that the logic portion of your system is safe. And doing that maybe won’t make fewer things capable of going wrong, but at least fewer things capable of spectacularly dangerous failure.

The Death Star post illustrates why we shouldn’t let economists decide how to run things. That and a million other stories from real life.

two suggestions… 1. bridge it and use as a 230v rectified/ cleaned up DC as per your choice 2. as with pop up toasters and hairdriers, use convection and radiation instead of conduction. use a hot coil and duct the hot air for circulation under the bed.

I do not disagree that this is not the best way to do it. I have only used it for temporary installation, and only when I can frequently inspect everything involved for signs of elevated temperature. At home, I had a licensed electrician install a NEMA 6-50 and a 40A circuit (which we de-rate to 32A for EVSE service) in our garage for our car charging needs.

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.

CARLO GAVAZZI is proud to announce the launch of the newest addition to its RGC Series Solid State Contactor platform. These single-phase zero-crossing relays, featuring an integral heat sink, offer the best in the class current rating of up to 37AAC at 40°C or 43AAC at 25°C.

It’s not voltage that kills you, it is current acoss the chest ie heart. Hence so called medical coils of the 19th century and high frequency tesla coils and drawing arcs to your skin that do not kill you. I knew a TV engineer that tested high voltage triplers for CRT TV’s by drawing an arc to his finger. The path is the issue and the current available.

110/220 is the load rating and 120/240 is what the circuit provides. The voltage could sag as low as 110 or 220 in use.

Anyone “hacking” an appliance that can literally burn down your house, voids any safety certifications the appliance was manufactured with. The insurance company would ‘probably’ have the option of simply denying any claims arising from a fire caused by the hacked appliance. This is speculation since I’m not an attorney, but it would be prudent to consult with a knowledgeable agent before undertaking any such projects. My policy specifically excludes “events” as a result of deliberate modification of appliances that the manufacturer of said appliance has not authorized.

Ah yes, the typical “Let’s leave that discussion for somewhere else” when the downsides of EVs are pointed out…