12 amp Blender Overloading Bed Outlet

[CTMike]

I think you're misunderstanding the NEC 80% derating for continuous loads (>3 hours). A new 20 Amp breaker in isolation allows 20 Amps indefinitely. A 20A breaker that has been sourcing a 20A load for years may nuisance trip. As could one surrounded by other active breaker in a panel. So continuous loads require breaker derating to prevent that from happening.

In the case of Cybertruck, it's all software controlled so they can set the trip point a lot more reliably.

Nice to know!

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[Woodrick]

About half a cup of ice, 1/2 cup of concentrated black chai tea, 1 cup of milk or milk alternative, and 1 full scoop of chai tea powder mix.

It's quite delicious!

What you are experiencing is the unbridal power of a relatively cheap electric motor.

Electric motors are known for their unlimited torque. It will provide unlimited torque up until one of the follow?

• Power source can't give any more
• The wires and windings melt

Ice is a solid object and think how much pressure it takes if you put a screwdriver on an ice cube and push down until it breaks. You can't bang on it, just push.
It's a LOT of power.

And that's what the blender needed to crush the ice. Once the ice was pulverized, their probably would be no issues.

So when someone said "6 times in the in-rush current" that mean over 70 amps.
And you really shouldn't be doing this to a household outlet either, but they get away with it.

 

[Jager]

You'd know it if you had a "good one" 50' extension cord... because it would be very bulky, very heavy, a pain-in-the-ass to roll and unroll, and you would have grimaced mightily when you reached for your wallet to buy it. Most extension cords - even the long ones - in the big box stores are 16AWG. Finding a 10AWG takes some work and will probably require buying it online.

Voltage drop is a thing. In-rush current for lots of devices - but especially things that contain electric motors - is a thing.

The good news is... your truck is fine!

 

[PunkOuter]

I do love how much knowledge this forum has. Cheers everyone!

 

[mongo]

10 Gauge 240V (30A generator), 10 gauge 120V, 14 and 16 cords:

In terms of ideal performance, a 50 foot extension cord made of copper wire (100 ft round trip) of different gauges has a resistance of:
16: 0.409
14 : 0.258
12 : 0.162
10 : 0.102

3 AWG steps is half/double the crossection. So a 16 gauge cord has 4x the voltage drop of a 10 gauge one.

 

[Crissa]

There are also voltage regulators that can help manage the inrush current, or daisy-chaining devices like an Ecoflow Delta Pro which can handle the inrush current but have it being supplied from the truck for longer running.

...But this is why I often oversize my extension cords. Don't look at their amps and watts, as they'll state just the UL listing an a 10ga cable isn't allowed to carry more than a 12ga or 14ga until you get to really long lengths. But those connections and lengths still matter when smaller and make it more likely to blow at the breaker and not the cable (and make hot spots easier to find)

-Crissa

(Having a cabin means I have sooo many extension cords in perennial service)

 

[Woodrick]

There are also voltage regulators that can help manage the inrush current, or daisy-chaining devices like an Ecoflow Delta Pro which can handle the inrush current but have it being supplied from the truck for longer running.

...But this is why I often oversize my extension cords. Don't look at their amps and watts, as they'll state just the UL listing an a 10ga cable isn't allowed to carry more than a 12ga or 14ga until you get to really long lengths. But those connections and lengths still matter when smaller and make it more likely to blow at the breaker and not the cable (and make hot spots easier to find)

-Crissa

(Having a cabin means I have sooo many extension cords in perennial service)

Yep, while there may be a few high-gauge cords in my stash, often bought for very specific purposes (like LED Christmas lights), the vast majority are the lowest gauge available for a specific length.

May be a little more expensive, but often higher quality and much lower voltage drops.

 

[mstatkus]

Ironically I had a cheap power strip on a 12” mitre saw EGO Nexus kept tripping. EGO claimed 3000w peak and my ECOFlow Delta 2 claimed 2400w peak but it worked. So as one does, I run out and get a soft start for like $89 so I’m not tripping my remote saw.
What I failed to realize was I was plugging into the ECOFlow direct and running the EGO Nexus off this stupid 14 AWG power strip.

Made a point to start getting 12AWG extension chords and power strips after that.
I was using it so I could have the saw, sander, jig saw etc all ready to go in an off grid location.

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