Extension Cords
15FT NEMA L14-30 Generator Extension Cord, 30A 125/250V, 10/4 STW
15FT NEMA L14-30 generator extension cord featuring an L14-30P male plug, L14-30R female connector and 10/4 AWG STW pure copper cable. Rated for 30A and 125/250V, this ETL-listed four-prong locking cord is designed for generators, power inlet boxes, transfer switches and compatible RV or camper power equipment.
15FT NEMA L14-30 Generator Extension Cord
The ALUX 15FT NEMA L14-30 generator extension cord is a heavy-duty locking power cord designed to connect portable generators with compatible transfer switches, generator inlet boxes, backup power systems and electrical equipment.
It features a NEMA L14-30P male plug, NEMA L14-30R female connector and 10/4 AWG STW pure copper cable. Rated for 30 amps and 125/250 volts, the four-prong locking design helps provide a secure and stable power connection.
Key Features
- 15FT / 4.57m cable length
- NEMA L14-30P male plug
- NEMA L14-30R female connector
- 30A, 125/250V electrical rating
- 10/4 AWG heavy-duty cable
- Flexible STW cable jacket
- Pure copper conductors
- Four-prong twist-lock connection
- High-visibility yellow jacket
- Molded black connectors
- ETL listed
- OEM packaging and branding available
Technical Specifications
Item | Specification |
|---|---|
Product | Generator Extension Cord |
Cable Length | 15FT / 4.57m |
Male Plug | NEMA L14-30P |
Female Connector | NEMA L14-30R |
Rated Current | 30 Amp |
Rated Voltage | 125/250V |
Maximum Power | 7500W at 250V |
Configuration | 4-Prong, 3-Pole, 4-Wire Grounding |
Cable Gauge | 10/4 AWG |
Cable Type | STW |
Conductor Material | Pure Copper |
Jacket Color | Yellow |
Connector Color | Black |
Connection Type | Twist Lock |
Certification | ETL Listed |
Cable Length Options | 15FT or Customized |
OEM / ODM | Available |
Secure Twist-Lock Connection
The L14-30P plug and L14-30R connector use a four-prong twist-lock design. Once inserted and rotated into position, the connection remains secure and helps prevent accidental disconnection caused by vibration, movement or cable tension.
10/4 AWG Pure Copper Cable
The heavy-duty 10-gauge cable uses pure copper conductors to provide stable conductivity and lower electrical resistance. It is suitable for demanding 30 Amp generator and backup-power applications.
Flexible STW Cable Jacket
The durable STW jacket provides flexibility and protection during outdoor and temporary power use. Its bright yellow color improves cable visibility around generators, garages, workshops and job sites.
Applications
This 15FT L14-30 generator cord can be used with compatible:
- Portable generators
- Generator power inlet boxes
- Manual transfer switches
- Home backup power systems
- Workshops and garages
- Construction and job sites
- Temporary power equipment
- RV and camper power equipment
- Emergency power systems
Always confirm that the generator, inlet box and connected equipment use compatible NEMA L14-30 connectors and electrical ratings.
What Is a NEMA L14-30 Generator Cord?
A NEMA L14-30 generator cord is a four-wire locking power cord rated for 30 amps and 125/250 volts. It is commonly used to transfer power from a portable generator to a compatible inlet box, transfer switch or electrical system.
Can This Cord Connect a Generator to a House Inlet Box?
Yes. The L14-30P plug can connect to a compatible generator receptacle, while the L14-30R connector attaches to a compatible power inlet. A properly installed transfer switch or interlock system should be used for home backup-power applications.
Is the Cord Suitable for Outdoor Use?
The STW jacket is designed for heavy-duty service and outdoor applications. However, all connections should be kept properly protected and used according to the generator and electrical equipment instructions.
Custom Generator Cord Manufacturer
ALUX supplies NEMA generator extension cords for electrical distributors, generator suppliers, hardware wholesalers and private-label brands.
Custom cable lengths, colors, labels and packaging are available. Contact us for samples, wholesale pricing and OEM requirements.