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

I understand it’s only about 20hz, which is why it gives you that interesting jiggly feeling instead of a good Wack like mains power at 50/60 Hz does. When I was still a young buck in my early 20’s I worked in a mid-sized company and one of my duties was to maintain our POTS lines; my boss who might have been a sadist would often have me remap the phone lines mid day while the lines were in use and insist that I was not to busy any lines out. I can only amagine my coworkers delight at the inventive array of profanity that would come out of the wire closet when the reception switchboard would light up during these sessions. Sti got my lines man’s handset stashed somewhere…lol

First rule of LO-TO: if you didn’t LO-TO it yourself it’s not! I will never EVER trust anyone to do a LOTO for me. If I’m to stick my hands into something dangerous the key to that lock on the switch is going to be in MY pocket!

The likely hazards identified, what are you about to do with it? Are you just opening it for curiosity’s sake, are you going to work on the high voltage circuit to fix it, or is it surplus that you’re scavenging for parts? If you’re just curious or simply scavenging parts, you may not have to increase the risk by applying power in the first place, so what other risks might remain?

Meh, just use a relay for your “PWM”. It’s much easier, and you have a huge low pass filter. You can easily go up to a few Hz switching with a good realy. Use a solid state relay and it’s even better (you might break your mechanical relay after prolonged use).

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.

It’s a Prius for private buyers. It’s got one of the best drivetrains and most sophisticated chassis in the class, looks ok inside and out, no doubt usual exemplary quality and reliability.

Even if you have 20A circuit breakers, 15A is going to likely be the circuit limit because most heavy-duty extension cords you can get are only rated for 15A – which, again, means charging at 12A.

Pick-up voltage usually occurs when the motor has reached about three-fourths of its speed. The start winding is still in the back-EMF circuit, keeping the relay’s coil energized while the motor is running at full speed.

Looking at the datasheet for the Fotek SSR-25DA:https://cdn.sparkfun.com/datasheets/Components/General/SSR40DA.pdf

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

I’ve thought about converting my Solidoodle 2 to 120v bed heating for ages now. I think it’s a good idea with a lot of benefits. I’ve been far to lazy to actually do it, however. Maybe one day I’ll get my act together. In the mean time I’ll just sit here and envy other people who have had the initiative to actually do it.

My first job in the trades was as an electrician’s apprentice doing tasks, such as pulling wire, building light fixtures, and moving scaffolding in grocery store renovations. I moved into HVACR and now serve as an HVACR contractor, instructor, and electrician.