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100ft Outdoor Indoor Extension Cord, 3-Outlet, 12/3 Gauge Extra Heavy Duty, 3 Prong SJTW
$64.99
Final price set by Amazon · may vary
Amazon customer rating: 4.7 / 5 - WC Safety review of the 100ft Outdoor Indoor Extension Cord, 3-Outlet, 12/3 Gauge Extra Heavy Duty, 3 Prong SJTW. Written by Steven Eaton, WC Safety Editorial, from the published ma...
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Amazon customer rating: 4.7 / 5 - WC Safety review of the 100ft Outdoor Indoor Extension Cord, 3-Outlet, 12/3 Gauge Extra Heavy Duty, 3 Prong SJTW.
Written by Steven Eaton, WC Safety Editorial, from the published marketplace listing. The score above is the live Amazon customer rating captured at review time - not a WC Safety test result. We did not laboratory-test this product.
Written by Steven Eaton, WC Safety Editorial, from the published marketplace listing. The score above is the live Amazon customer rating captured at review time - not a WC Safety test result. We did not laboratory-test this product.
The 100ft Outdoor Indoor Extension Cord, 3-Outlet, 12/3 Gauge Extra Heavy Duty, 3 Prong SJTW is one of our picks for the extension cord lineup. Everything below comes straight from the manufacturer's published listing - specs, capacities, and dimensions are theirs, not ours.
Cord gauge is a capacity rating: 12 AWG carries 15 amps at 100 feet where a 16-gauge cord overheats at the same load. Jobsite duty means SJTW-jacketed, grounded, lighted-end cords sized for the tool at the far end - and GFCI protection on the circuit, which OSHA requires on construction sites. Inspect for cuts and crushed jackets before each use; damaged cords retire.
Key details, quoted from the manufacturer's published listing:
- LONG LASTING PERFORMANCE: Engineered to endure harsh conditions, this heavy duty extension cord remains resilient against extreme temperatures. With a superior indoor / outdoor extension cord waterproof design, it offers unmatched durability and reliability for home, work, or construction...
- WITHSTANDS WEAR & TEAR: Featuring a robust vinyl jacket, your new 3 prong extension cord stands up to oil, grease, moisture, and abrasion, safeguarding against electrical hazards and wear. This power cord extension ensures safe operation across diverse environments, making it a trusted...
- LIGHTED END FOR VISIBILITY & SAFETY: With a lighted end to indicate power and a brightly colored PVC jacket, this three prong extension cord minimizes tripping hazards and improves safety in busy or poorly lit areas. Stay safe while powering up with an easily noticeable extension cable. The...
- VERSATILITY FOR EVERY TASK: Powering a range of heavy-duty equipment from drills and saws to lawn mowers and holiday lights - this electric extension cord is a versatile powerhouse. Ready to support all your needs with ease and efficiency, the LifeSuppyUSA electric cord is your go-to tool...
- POWERFUL: This 100FT, 12 Gauge 3-prong, 3-Outlet, SJTW, Yellow extension cord is designed for extra safety and durability, The cable extension electrical cord supports 15 AMP, 125 Volts, and up to 1875 Watts, ensuring robust performance for high-demand equipment, this 1 Pack embodies...
See every extension cord, power them from a CO-shutoff generator, light the work with jobsite lighting, and browse all jobsite equipment.
What to check before you buy
- Gauge against length and load
- Voltage drop rises with length and falls with wire size. A 100 ft run pulling serious current needs 12 AWG or heavier; 16 AWG is for light loads over short distances.
- Outdoor rating
- Cords for outdoor or wet use carry a W in the type designation. Indoor-rated cords used outside are a shock hazard, not just a durability problem.
- GFCI protection
- On construction sites, receptacles not part of the permanent wiring generally require GFCI protection or an assured equipment grounding conductor program.
- Condition of the jacket and plug
- OSHA requires that flexible cords be removed from service if the outer jacket is damaged or the grounding pin is missing or bent. Repairs with tape are not compliant.
How it compares to other extension cords we review
| Product | List price |
|---|---|
| 100ft Outdoor Indoor Extension Cord, 3-Outlet, 12/3 Gauge Extra Heavy Duty, 3 Prong SJTW (this page) | $64.99 |
| 100 FT 12/3 Outdoor Extension Cord Waterproof, Heavy Duty Power Cord, Flexible SJTW | $76.99 |
| HUANCHAIN 12/3 Gauge Heavy Duty Outdoor Extension Cord, 100 FT Waterproof, 12AWG | $76.99 |
| HUANCHAIN 12 Gauge Heavy Duty Outdoor Extension Cord, 75 FT Waterproof | $61.99 |
| 12 Gauge 100 FT Heavy Duty Outdoor Extension Cord, Waterproof, Black, with Lighted End | $78.99 |
| Outdoor Extension Cord Waterproof 100 FT, Black 12/3 SJTW Heavy Duty, Flexible 100 | $62.99 |
| 12 Gauge 100FT Heavy Duty Outdoor Extension Cord, Waterproof, Yellow, with Lighted End | $78.99 |
List prices recorded when this page was last updated; Amazon pricing moves frequently, so check the live listing. Browse the full extension cords range, or see all jobsite equipment.
Frequently asked questions
What gauge extension cord do I need?
It depends on both the current draw and the run length. Lower AWG numbers mean thicker wire and less voltage drop - 12 AWG for heavy tools on long runs, 14 AWG for moderate loads, 16 AWG only for light loads over short distances.
Why does my tool run weakly on a long cord?
Voltage drop. A cord that is too thin for the length delivers less voltage under load, which makes motors run hot and shortens their life. Increase the wire size rather than the cord length.
Do I need a GFCI on a jobsite?
OSHA requires either GFCI protection for receptacles not part of the permanent wiring, or a written assured equipment grounding conductor program. GFCI is the far more common route.
Can I daisy-chain extension cords?
It compounds voltage drop and adds connection points that can overheat or pull apart. Use a single cord of the correct length and gauge instead.
When should a cord be taken out of service?
Any damage to the outer jacket, exposed conductors, a missing or bent grounding pin, or a plug that no longer grips the receptacle. Damaged cords are replaced.
Where do the specifications on this page come from?
They are taken from the manufacturer's published listing. WC Safety does not laboratory-test products, and nothing is claimed here that the manufacturer does not state.
Does WC Safety sell this product?
No. WC Safety is an independent review site and an Amazon Associate. Purchases happen on Amazon, and we earn a commission on qualifying purchases at no extra cost to you.
How was the rating on this page determined?
The score shown is the live Amazon customer rating captured at the time of review. It reflects buyer feedback, not a WC Safety test result.
Brand / Vendor
Generic
Model / SKU
—
Product Type
Extension Cord
Price
$64.99 (Amazon)
Availability
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