what is the OD of this cord?

The diameter is approximately 0.61"

Isn't this wire a 12-2 w/ ground? Why 12-3?

Amazon customer is correct. Normally, the cable would be described as 12/2 with ground. In AC circuits a green wire can never be used to carry normal current. It only functions as a ground wire bonded to metal frame of appliance, motor, metal frame, etc.; and only carries current in situation where a short occurs from powered conductors to frame or motor. As noted, if used in a 240 V circuit, the white wire MUST be taped with a non-white, but not green, colored tape or paint. Importantly, this recoloring must be placed on both ends of white wire, and any intermediate splices.

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IronBox Electric Bulk 12/3 SJOOW Electrical Cord - 20A, 300V Max Rating - Water & Oil Resistant 3-Conductor Electric Cable - UL Listed Heavy Duty Portable Electrical Wire for Indoor & Outdoor (100ft)

IronBox Electric Bulk 12/3 SJOOW Electrical Cord - 20A, 300V Max Rating - Water & Oil Resistant 3-Conductor Electric Cable - UL Listed Heavy Duty Portable Electrical Wire for Indoor & Outdoor (100ft)

Product ID: 152859300

Details

Brand
Iron Box
Color
Black Green
Gauge
12
Material
Rubber
Number of Cable Strands
Multi Strand

💧Water & oil resistant rugged jacket

🔌20A heavy-duty power capacity

🛠️Flexible 12-gauge 3-conductor design

R9090

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your projects with the cord that works as hard as you do!

UL LISTED RELIABILITY - Certified heavy-duty cable trusted by pros for industrial, commercial, and DIY applications.
POWER UP WITHOUT LIMITS - Handles up to 20 amps and 300 volts for your toughest tools and machines.
TAILORED TO YOUR PROJECT - Available in bulk 100ft length—customize your power runs with no compromises.
BUILT TO BRAVE THE ELEMENTS - Rugged SJOOW rubber jacket resists water, oil, abrasion, and weather—indoors or outdoors.
PRECISION WIRING MAXIMUM FLEXIBILITY - Color-coded 3-conductor 12 AWG cable for safe, efficient, and versatile power setups.

The IronBox Electric Bulk 12/3 SJOOW Electrical Cord is a UL-listed, heavy-duty 12-gauge cable rated for 20 amps and 300 volts. Featuring a flexible, rugged rubber jacket resistant to water, oil, and abrasion, it’s designed for reliable indoor and outdoor use. Its 3-conductor, color-coded wiring supports versatile, safe power distribution for professional and DIY applications, making it the go-to choice for demanding electrical setups.

Specifications

ASIN	B07BR2LQ43
Best Sellers Rank	#286,215 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,302 in Electrical Wire
Brand	Iron Box
Brand Name	Iron Box
Color	Black, Green, White
Customer Reviews	4.6 out of 5 stars 334 Reviews
Gauge	12
Manufacturer	Iron Box
Material	Rubber
Material Type	Rubber
Maximum Current	20 A
Model	IBX-4045
Number Of Wires	3
Number of Cable Strands	Multi Strand
Number of Items	1
Part Number	IBX-4045
Strands	Multi Strand
UPC	656721941940
Unit Count	100 Feet
Voltage	300 volts

Reviews

C**9

Excellent product

Great price on a great product. Use this for machine building. The SJOOW jacket is extremely flexible and durable, it's the kind of power cord wire you get on nice power tools. The wire is true 12 AWG. No plugs or anything on it. Just wire. Great price and quick shipment.

6.02.2014

T**R

Great cord

Initially gave a 1 star, seller resolved issue quickly and professionally.

24.12.2023

1**1

quality, fast shipping [real 12ga.]

very flexible arrived ice cold and on my porch mid 20's as flexible as a good cord in july . other reviews seem inaccurate. the 12/3 I got is under 1/2" in dia. the reviews I saw may be for 10/3 that said over 1/2" would buy again

31.12.2020

J**L

Excellent Wire

Always use the type of wire for job

13.04.2023

R**K

Very good quality, a bit pricey

Very good quality, somewhat pricey. Difficult to terminate but it can be done.

23.02.2022

T**R

very bright

small and compact

6.11.2024

Z**T

Great value

Using this in cargo trailer 120 volt wiring. Great price for a roll.

19.11.2020

E**O

Exactly what I was looking for.

Used on my 220v Shop fox table saw. Quality cable, very flexible.

10.02.2022

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R9090

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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