Is this 100% copper wire

I change one of the connections and it was copper wire.

Will this handle the old classic Lincoln buzz box?

Yes-the ends fit. I use these because they're cheap long cords for a little DC box that works 115a/250 for stuff around the house/yard but max out my welding max 110 dc amps for small jobs. These cords are only 10 gauge-I have a the fatter 6 gauge cords for the high amp jobs-the 6 gauge cords are twice as heavy and expensive.

How long can I run a machine on this? Looking to use it to connect to my pool heater (wont get wet) but ill need it to run for 30hrs

It's a good, well-made cord. You should compare cord AMP rating to your pool heater AMP rating to see if it is big enough.

is 10AWG really rated for 50A??

No. You should be using 6AWG minimum for 50A

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Welding Extension Cord

Product ID: 62556418

Details

Brand
VEVOR
Color
black
Connector Gender
Plug Format
NEMA 6-50P
Voltage
250 volts

📏50 Feet Heavy-Duty Length

🔌30A 10 AWG Copper Core

🌧️All-Weather STW Jacket

COP 763516

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Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your craft anywhere with confidence and style!

EFFORTLESS FLEX GRIP - Ergonomic NEMA 6-50 plug with kink-resistant cable for smooth handling and quick connect.
POWER UP WITHOUT LIMITS - 30 Amp pure copper core delivers stable 7500W power for all your welding needs.
WORKSHOP TO JOB SITE READY - 50-foot reach keeps you mobile and safe, no voltage drop even on large projects.
BUILT TO BRAVE THE ELEMENTS - STW-rated jacket resists rain, oil, UV, and extreme temps from -40°F to 194°F.
UNIVERSAL WELDER COMPATIBILITY - Fits MIG, TIG, Stick, Plasma welders from Lincoln, Miller, Hobart & more.

The VEVOR 50ft Welder Extension Cord features a heavy-duty 30A 10 AWG pure copper core rated for 7500W, with a durable STW jacket designed for all-weather use. Its ergonomic NEMA 6-50 plug ensures easy handling and compatibility with major welder brands, making it the ultimate extension solution for professional and hobbyist welders alike.

Specifications

ASIN	B072B92G4Y
Amperage	30 A
Best Sellers Rank	#94,353 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #900 in Extension Cords
Brand	VEVOR
Built-In Media	1 X 50FT 10AWG Welder Extension Cord
Case Material Type	Plastic
Color	black
Connector Gender	Male-to-Female
Customer Reviews	4.7 4.7 out of 5 stars (1,023)
Gauge	10
Indoor Outdoor Usage	Indoor, Outdoor
Input Current	30 A
Item Length	600 inches
Item Type Name	Welder Extension Cord 50Amp 50ft
Manufacturer	VEVOR
Mfr Part Number	50Amp 50ft
Model Number	50Amp 50ft
Number Of Conductors	4
Number of Items	1
Number of Outlets	1
Number of Packs	1
Plug Type	NEMA 6-50P
Power Cord Prong Count	3
Special Features	Abrasion Resistant, Heavy Duty
UPC	601285879345 197988722083
Unit Count	1 Count
Voltage	250 volts
Warranty Description	1 year manufacturer
Water Resistance Level	Water Resistant
Wattage	7500 watts

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COP 763516

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Colombia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

View all Trustpilot reviews