HD Contractor Extension Cords
Factory Direct - American Made

HD 12 Gauge 600V Contractor Extension Cords M&F Plugs USA

NEMA 5-15P Male Plug

Wire Guage Length Foot Per Foot Wire Cost Plugs Installed Total Cost Wt. Lbs. 12/3 SOW 25' 1.00 25.00 15.00 40.00 7 12/3 SOW 50' 1.00 50.00 15.00 65.00 14 12/3 SOW 75' 1.00 75.00 15.00 90.00 21 12/3 SOW 100' 1.00 100.00 15.00 115.00 28 12/3 SOW 125' 1.00 125.00 15.00 140.00 35 12/3 SOW 150' 1.00 150.00 15.00 165.00 42

NEMA 5-15C Female Connector

HD 12 Gauge 600V Contractor Extension Cords 4 Outlet Box

NEMA 5-15P Male Plug Option 2 L5-30P Option 3 L14-30P

Wire Guage Length Foot Per Foot Wire Cost Plugs Installed Total Cost Wt. Lbs. 12/3 SOW 25' 1.00 25.00 15.00 40.00 7 12/3 SOW 50' 1.00 50.00 15.00 65.00 14 12/3 SOW 75' 1.00 75.00 15.00 90.00 21 12/3 SOW 100' 1.00 100.00 15.00 115.00 28 12/3 SOW 125' 1.00 125.00 15.00 140.00 35 12/3 SOW 150' 1.00 150.00 15.00 165.00 42 Option 2: Replace NEMA 5-15 Plug with L5-30 Plug +6.00 Option 3: Replace NEMA 5-15 Plug with L14-30 Plug +9.00

NEMA 5-15R 4 Outlet Box

Note: Non weatherproof box - NOT recommended for wet locations.

HD 10 Gauge 600V Generator Extension Cords NEMA L5-30

NEMA L5-30P Male Plug

Wire Guage Length Foot Per Foot Wire Cost Plugs Installed Total Cost Wt. Lbs. 10/3 SOW 25' 1.40 35.00 35.00 70.00 9 10/3 SOW 50' 1.40 70.00 35.00 105.00 18 10/3 SOW 75' 1.40 105.00 35.00 140.00 27 10/3 SOW 100' 1.40 140.00 35.00 175.00 36 10/3 SOW 125' 1.40 175.00 35.00 210.00 45 10/3 SOW 150' 1.40 210.00 35.00 245.00 54

NEMA L5-30C Female Connector

HD 10 Gauge 600V Generator Extension Cords NEMA L14-30

NEMA L14-30P Male Plug

Wire Guage Length Foot Per Foot Wire Cost Plugs Installed Total Cost Wt. Lbs. 10/4 SOW 25' 1.60 40.00 40.00 80.00 9.5 10/4 SOW 50' 1.60 80.00 40.00 120.00 19 10/4 SOW 75' 1.60 120.00 40.00 160.00 29 10/4 SOW 100' 1.60 160.00 40.00 200.00 38 10/4 SOW 125' 1.60 200.00 40.00 240.00 48 10/4 SOW 150' 1.60 240.00 40.00 280.00 57

NEMA L14-30P Female Connector

Jumper Cords - Pigtails & Feeder Cables

15 Amp Jumper Cords - Pigtail (Whips)

1' - 3'   Jumper     7594 Male   7593 Female    7485 Male  7484 Female 7567 Male 7565 Female 4721N Male 4731N Female

NEMA Male Female Wt. Cost 10+ ML-2 7594 7593 - 38.00 36.00 ML-3 7485 7484 - 41.00 39.00 NA 7567 7565 - 36.00 34.00 L5-15 4721N 4731N - 33.00 31.00 Price includes up to 3 ft of wire. 16/3 SJOW or 14/3 SJOW 300v wire. 16/3 SOW or 14/3 SOW 600v wire.

30 Amp to 15 Amp Jumper Cords - Pigtail (Whips)

1' - 3' PigTail L5-30 Male 5-15 Female L14-30 Male L5-30 Female

Wire Guage Male Female Wt. Cost 10/3 SOW L5-30P 5269N - 35.00 10/3 SOW L14-30P L5-50c - 45.00

50 & 60 Amp to 30 Amp Plugs & Mini Cams - PigTails

1' - 3' PigTial 5745N Male L14-30C Female 9462N Male L14-30C Female 5745N Male Mini-Cams 9462N Male Mini-Cams

Wire Guage Male Female Wt. Cost 10+ 10/4 SOW 5745N L14-30C - 60.00 . 10/4 SOW 9462N L14-30C - 60.00 6/4 SOW 5745N MiniCam - 80.00 6/4 SOW 9462N MiniCam - 80.00

50 & 60 Amp Twist Lock to Mini Cam lock Connectors - PigTails

3' PigTails 3764EX Male Mini-Cams 7765EX Male Mini-Cams Mini-Cams 3764EX Mini-Cams 7764EX

Wire Guage Male Female Wt. Cost 10+ 6/4 SOW 3764EX Mini-Cams - 130.00 - 6/4 SOW 7765EX Mini-Cams - 130.00 - 6/4 SOW Mini-Cams 3764EX - 133.00 - 6/4 SOW Mini-Cams 7764EX - 145.00 -

Made in USA - National Supply Green Bay WI

National Supply Company, takes pride in its solid reputation as a top quality power cord manufacturer offering cord sets from 15 amp to 60 amp and beyond with our line of plugs and cam-lok connectors.

We use UL & CSA recognized, plugs and connectors from the nations most trusted manufacturers including Cooper Industries, and Hubbell Wiring Devices.

Additional plugs can be purchased separately, 15 amp twist lock plugs, 20 amp twist lock plugs, 30 amp twist lock plugs, 50 amp twist lock plugs, and our selection of straight blade plugs.

National Supply Company stocks the complete line of the Advanced Devices cam-lok connectors, including mini cams, as well as the larger 2/0 and 4/0 can-loks as well.

Our power cable is brought to you by the finest USA manufactures including Carol Cable, Colemen Wire and Cable, and American Insulated Wire and Cable Company.

We also sell SOW, SEOW, SJOW, portable power cable by the foot, including single conductor entertainment cable and type W.

All our electrical wire and cable is neoprene jacketed with copper conductors, outdoor rated, available in 300 volt and our heavy duty high amperage, 600 volt rated wire.

Always 100% copper conductor, never copper coated aluminum wire, or copper coated steel.

Our power cords are built for indoor and outdoor use in the most extreme weather conditions.

Our power cords are used in various industries including the carnival and amusement industry. We have power cords for generator and power box cords, contractors, and industrial applications.

Our Jumper cords, pigtails & feeder cables are used in the stage and lighting industry, and of course the carnival and amusement park industry.

National supply also manufactures the finest quality booster cables / jumper cables available. We use only 100% copper wire, not the copper coated aluminum wire many other companies use. Our booster cables are outfitted with the finest quality 600 amp parrot clamps for the best connection.

Custom orders are always accepted. National Supply realizes many of our customers have special needs, and exact requirements. Special orders don't upset us.

All cord sets are American made, manufactured right here in Green Bay Wisconsin, made in USA.

National supply is committed to giving our customers 100% quality products.

To order, call today 800-726-8044

Wholesale & Volume Purchases

National Supply does offer volume and wholesale pricing.
Call today to find out more. 800-726-8044

Important Tips when Buying Wire or Extension Cords

Our Heavy duty contractor cords are made with type SOW / SOOW electrical wire.

The "S" in SOOW stands for "severe service cord".

The "OO" stands for "Oil-Resistant Outer Jacket and Oil-Resistant Interior Insulation".

The "W" stands for " Weather Resistant for indoor and outdoor use".

Other designations and what they mean.

Our recommendation, to avoid any wire with the letter "T" anywhere in the designation.
Example STO, STW, SJT.

The "T" stands for "Thermoplastic". Plastic wire is not recommended for severe service.
thermoplastic is not recommended in cooler temperatures as thermoplastic will get very stiff, in contrast SJO or SOW remains very flexible in very cold conditions.

It is our recommendation to avoid any wire starting with the letters "ST" in the designation anytime your application is for ruff service, or cool conditions.

The "J" in "SJ" stands for " Junior Service 300 volts ". Thin jacketed wire is not recommended for severe service.
Unless you are looking for a lightweight wire like you would find on a household appliance avoid type SJ wire.