Why hair dryer tripping bed power outlet?

[bowenzhang]

I tried to use hair dryer with the outlet in the CT’s bed. It started and stopped right away. CT shows I need to unplug and re-enable the outlet.

the hair dryer is 1875W and the manual says the outlet allows 20A, so that should be enough. Manual also says “The AC outlets on Cybertruck are all capable of providing additional surge current to start almost all devices (such as power tools, motors, and compressors) up to 110LRA.”.

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[tmeyer3]

The 120vac, including in the cabin (not correct, they have 20a in bed and a separate 20a in the cabin per @HaulingAss correction), are a combined 20a. Do you have anything else plugged in?
Also, I'm not sure if this is true for the CT, but a traditional breaker will only support 80% of continuous load. That's 1920W for those outlets if that holds true for the CT breakers, which is still enough.
My first guess is that the hair dryer is lying to you ? a 1875W hair dryer seems excessive. That's about how much my entire house pulls when not running the AC....

Hope that helps

 

[Woodrick]

I tried to use hair dryer with the outlet in the CT’s bed. It started and stopped right away. CT shows I need to unplug and re-enable the outlet.

the hair dryer is 1875W and the manual says the outlet allows 20A, so that should be enough. Manual also says “The AC outlets on Cybertruck are all capable of providing additional surge current to start almost all devices (such as power tools, motors, and compressors) up to 110LRA.”.

The one thing that I can guarantee you on hair dryers, is that any specifications that they list are just lies. That industry is just full of crap.

It's very possible that there might be leakage currents are something else going on. Do you have another hair dryer to try? Maybe borrow one and see how it works?

 

[HaulingAss]

The 120vac, including in the cabin, are a combined 20a. Do you have anything else plugged in?
Also, I'm not sure if this is true for the CT, but a traditional breaker will only support 80% of continuous load. That's 1920W for those outlets if that holds true for the CT breakers, which is still enough.
My first guess is that the hair dryer is lying to you ? a 1875W hair dryer seems excessive. That's about how much my entire house pulls when not running the AC....

Hope that helps

I thought there were two 20A circuits available. The cabin outlets are on a separate 20A circuit from the bed outlets.

 

[tmeyer3]

I thought there were two 20A circuits available. The cabin outlets are on a separate 20A circuit from the bed outlets.

Oh! Must have read that wrong. Thx

 

[jf64k]

Was the dryer plugged directly in, or through an extension cord?

@Woodrick mentioned current leakage. I could also see that.

Were you standing on damp ground?

 

[Gaximus]

It’s probably a gfci fault, those work by checking if current is leaking back to the ground. Instead of going back to through neutral. An old hairdryer or poorly constructed one could cause this. The outlets on the cyber truck can provide more than the 20amps required to start things with motors, its in their docs.

https://www.tesla.com/ownersmanual/cybertruck/en_us/GUID-DA020526-B42E-4C0E-AE1E-BB22072D48B6.html

 

[Lasttoy]

U r lucky. Mine won't turn on. Tesla said software drivers not installed.
They refuse to push OTA. Appointment 18 September. I want be anywhere near. Jacksonville SC is closed forever till they clear backlog

 

[CyberGus]

Here, you can try mine

 

[060Sub2]

Random idea: get a 14-50P to 110V adapter (usually provides four plugs). My assumption is that this will give you a 110V connection with a 25A breaker (one leg of the 50A total)— perhaps giving you enough headroom to start up your hairdryer. Another thought is to start your hairdryer with heat turned off, then switch to low heat, then switch to high heat. This might spread the peak load over time and avoid tripping breaker. #NotAnElectrician

 

[Tecyber1]

 

[AlmostHuman]

Could pick up the me of these, see what it shows running the hair dryer in the house?

https://a.co/d/bbsOkAm

 

[Woodrick]

Then why don't you solve the problem?

Hair dryers are some of the cheapest POS that exist on the market.

 

[cybr hobo]

Try starting the dryer without the heat turned on.

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