Extension Cords | Generator, RV, Dryer & Welder Cords

Heavy-gauge cords for the loads that actually trip breakers.

50 A generator cords in NEMA 14-50P to SS2-50R twist-lock and bare-wire, 30 A L5-30P tri-tap cords, 50 A RV cords with pull handles, 30 A dryer and welder cords in 14-30, 10-30 and 6-50, 100 ft 12 AWG SJTW jobsite cords, and retractable and manual cord reels from 30 to 100 ft. Bare-copper conductors, STW or SJTW jackets as marked, NEMA-standard molded ends. Contractor and fleet pricing; same-day shipping on in-stock items.

Pick by the plug on the source

Source outlet	Cord	Rating	Typical use
NEMA 14-50R on a generator or RV pedestal	14-50P to SS2-50R twist-lock, or 14-50P to 14-50R	50 A, 125/250 V, 12,500 W	Generator to inlet box; RV to shore power
NEMA L5-30R locking on a portable generator	L5-30P to 3x 5-15R	30 A, 125 V, 3,750 W	Power tools and job lights straight off the generator
NEMA 14-30R (4-prong dryer)	14-30P to 14-30R	30 A, 125/250 V	Reaching a dryer or a Level 2 EV charger
NEMA 10-30R (3-prong dryer, older homes)	10-30P to 10-30R	30 A	Dryers and small welders on legacy outlets
NEMA 6-50R welder outlet	6-50P to 6-50R, 8 AWG	30 A, 250 V	MIG, TIG, plasma across the shop
Standard 5-15R wall or generator outlet	12/3 SJTW cord or cord reel	15 A, 1,875 W	Jobsite, shop, garage

Gauge and length

Voltage drop, not the rating stamp, decides the gauge on a long run: 12 AWG holds 15 A to 100 ft; 14 AWG is fine to 50 ft; 16 AWG is a 13 A, 30 ft light-duty cord. For 30 A use 10 AWG, for 50 A use 6 AWG on the hots. STW is the outdoor-rated hard-service jacket on the 30 and 50 A cords; SJTW and SJTOW on the 15 A cords and reels.

Filters on this page: cord type, amperage, plug end, receptacle end, wire gauge, and length. Related: AC power cords (IEC C13, C19, C7), solar and generator accessories, AC disconnects. Contractor and fleet pricing →