Features & Benefits
- Heavy Duty Outdoor STW Generator Extension Cord
- 3 Pole, 4 Wire Grounding
- NEMA L14-30P to NEMA L14-30R
- UL and C-UL approved
- Max rating: 6,250 watts
- Length: 100 feet, amperage de-rates to 25 amps
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- Conntek 20603 Nema Generator Cord, Yellow
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Item #:
48049665
Conntek 20603 Nema Generator Cord, Yellow
99% of respondents would recommend this to a friend
Item #:
48049665
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Stays flexible in cold weather, Heat Resistant up to 221F to 25 Amps when the cable is longer than 50FT.
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Product Details
- 100FT Heavy Duty OutdoorSTW 10/4 Generator Extension Cord
- Configuration: NEMA L14-30 (30 amps 125/250 volts, locking)
- 3 Pole, 4 Wire Grounding
- Stays flexible in cold weather, Heat Resistant up to 221F
- Max rating: 6,250 watts (amperage de-rates to 25 amps for 100 feet length)
- UL and C-UL approved with limited one year warranty
| Product Dimensions (L x W x H) | 15 x 5 x 15 inches (38.1 x 12.7 x 38.1 cm) |
| Item Weight | 32.4 pounds (14.58 kg) |
| Manufacturer | Conntek |
| Country of Origin | China |
| Item model number | 20603 |
| Is Discontinued By Manufacturer | No |
| Color | Yellow |
| Brand | Conntek |
| Connector Gender | Male-to-Female |
| Voltage | 250 Volts |
| Input Current | 30 Amps |
| Date First Available | August 14, 2021 |
| What is in the box | Conntek 20603 Nema Generator... For more details, please check description/product details |
Product Description
Conntek 20603 Nema Generator Cord, Yellow
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Customer Questions & Answers
-
Question:
What kind of weather conditions can this extension cord handle?
Answer: It stays flexible in cold weather. -
Question:
What are the approval marks for this extension cord?
Answer: It is UL and C-UL approved. -
Question:
What is the maximum rating for this extension cord?
Answer: The max rating is 6,250 watts.
Conntek Cords, Plugs & Adapters 20603 Editorial Review
The Conntek 20603 Nema Generator Cord is a well-made cord that is perfect for connecting generators to a power inlet. This cord is heavy duty and substantial, making it ideal for outdoor use. It is Construction/industrial quality but may become inflexible in cold weather. The connectors lock into the appropriate outlets on each end. The tag on the cord lists the adjusted Max Rating due to the length of the cord. Any power cord over 50 Feet will de-rate to a lower amperage, so it's essential to know the amount of Watts your equipment end will be using. If your generator has a 220 twist lock receptacle, then this will work for you. However, if you have a 10000 watt generator, this cord is not the correct cord. Customer
Customer Reviews & Ratings
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Pros
- Heavy duty and substantial
- Perfect for connecting generators to the power inlet
- Ideal for outdoor use
- Connectors lock into the appropriate outlets on each end
- Cord does not get hot Customer
Cons
- A little heavy
Platform Trust & Buyer Confidence
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Eddie
Verified buyer
“Purchased from Europe and arrived within 10 days. Very happy with the service”
30 August 2026 · via Trustpilot
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Tippy
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“Always quick always punctual”
25 August 2026 · via Trustpilot
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Trisha
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“Quick turn around, under a week from the USA to Australia’s far north (very very remote delivery location)! I will definitely be ordering from Ubuy Australia in the future.”
18 August 2026 · via Trustpilot
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shandelle
Verified buyer
“My delivery arrived earlier than expected and In great condition, Customer service was very helpful. I would definitely shop through Ubuys again. Very happy with my order.”
16 August 2026 · via Trustpilot
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customer
Verified buyer
“Quick and easy and quality products. Fast delivery.”
7 August 2026 · via Trustpilot
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