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Black 25 ft heavy-duty L6-30P to L6-30R twist-lock extension cord, 10 gauge SJTW jacket

usbroway

usbroway L6-30P to L6-30R Extension Cord 10GA 25FT 30A 250V

SKU CH-991M-0935W

A 25 ft SJTW 10-gauge twist-lock extension cord rated 30 A at 250 V with UL certification E257089

  • Connector Typetype
  • Reliable high-current power delivery with 10-gauge SJTW cable rated for 30 amps and 250 volts
  • Secure twist-lock connection prevents accidental disconnection on any L6-30 generator receptacle
  • All-weather durability from waterproof construction rated for 105°C heat and -40°C cold
  • Verified safety compliance through UL certification number E257089
  • Extended 25-foot reach enables flexible generator placement up to 7500 watts

L6-30 generator extension cord

This 25-foot cord connects an L6-30P plug to an L6-30R receptacle, extending power from a generator or outlet rated for 30 amps at 250 volts. It suits operators who need a locking connection for temporary power distribution in construction, events or backup scenarios.

Weather-rated jacket and twist-lock security

The SJTW 10-gauge cable withstands temperatures from minus 40 up to 105 degrees and meets FT-1 flame resistance, so it remains flexible in cold and resists damage in heat. A twist-lock mechanism prevents accidental disconnection when vibration or wind pulls on the line.

UL-listed construction for indoor and outdoor use

Certification number E257089 confirms compliance with UL safety standards for the complete assembly. The locking connectors imply the cord stays mated during movement, but the fixed 25-foot length limits placement flexibility compared with modular cord sets.

Highlights

  • Reliable high-current power delivery with 10-gauge SJTW cable rated for 30 amps and 250 volts
  • Secure twist-lock connection prevents accidental disconnection on any L6-30 generator receptacle
  • All-weather durability from waterproof construction rated for 105°C heat and -40°C cold
  • Verified safety compliance through UL certification number E257089
  • Extended 25-foot reach enables flexible generator placement up to 7500 watts

Specifications

Connector Typetype

Questions about this item

How do I connect the L6-30P plug to my generator's L6-30 receptacle and what step prevents it from coming loose in wind?

Align the blades with the receptacle slots, push fully in, then twist clockwise until the locking ring clicks — the twist-lock mechanism secures the connection against vibration and weather.

What degradation should I watch for on the SJTW 10-gauge jacket after repeated outdoor use?

Inspect the waterproof jacket for cracking or brittleness after seasonal temperature swings between -40 and 105; replace the cord if the insulation shows cuts, abrasion or loss of flexibility.

At what continuous load does the 25-foot 10-gauge run hit its thermal limit first?

The UL-listed 30 A rating (7500 W at 250 V) is the limiting factor — sustained current above 30 A will cause the conductors to exceed their 105 temperature rating before voltage drop becomes critical.

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