CircleCord 25ft 30A Generator Extension Cord with Inlet Box - Locking NEMA L14-30, 10 AWG SJTW

CircleCord 25-foot 4-prong 30A generator extension cord with locking NEMA L14-30 connectors and a pre-drilled inlet box connects your portable generator to a home transfer switch safely and reliably.

This heavy-duty kit combines a 25-foot 10 AWG SJTW power cord rated for 125/250V and 7,500W with a weatherproof inlet box and twist-lock connectors so you can power a house or jobsite during outages or outdoor projects. ETL listing and pure copper conductors wrapped in flame-retardant, UV- and oil-resistant PVC give durable performance in wind, rain, snow, and construction environments. The pre-fitted rubber plugs on the box simplify installation—no knockout punch or special drill bits required—and a carrying bag with an adjustable cord organizer keeps the system neat when not in use.

How does this cord-and-inlet kit make generator hookup safer?

The twist-lock NEMA L14-30 male and female connectors prevent accidental disconnects under load, while the inlet box isolates the connection point from weather and debris. ETL listing ensures the assembly meets recognized safety standards for household and portable generator use.

• Locking L14-30P/L14-30R prevents accidental pull-out
• Pre-drilled inlet box with rubber plugs reduces installation errors
• ETL listed for verified quality and safety
• 10 AWG pure copper conductors minimize voltage drop

Will this handle powering a typical home circuit or heavy tools?

Yes—at 30 amps and 125/250 volts the cord supports up to 7,500 watts, suitable for many transfer switch configurations, essential appliances, and most construction tools. The 10-gauge wiring is sized to carry the rated current with less heat and lower voltage loss over 25 feet.

• 7500W maximum load at 125/250V (30A)
• 10 AWG copper conductors for efficient current delivery
• 25-foot length balances reach and minimal voltage drop
• Compatible with manual transfer switch inlet requirements

How weatherproof and durable is the cable and inlet box for outdoor use?

The SJTW jacket is formulated to resist sunlight, oil, moisture, and abrasion so the cord performs in harsh outdoor conditions. The inlet box includes rubber plugs over the pre-drilled knockouts and a secure mounting pattern to keep water and dirt away from connections.

• Flame-retardant, heat- and UV-resistant PVC jacket
• Rubber knockout plugs for tool-free hole removal and sealing
• Built to withstand rain, snow, and jobsite rough use
• Twist-lock connectors reduce exposure from loose plugs

What makes installation and storage easier for homeowners?

CircleCord included a pre-configured inlet box and a storage solution so setup and teardown take less time and require fewer tools. The inlet's plug-ready knockouts eliminate the need for a knockout punch, and the included storage bag plus adjustable cord organizer keeps the assembly compact and tangle-free.

• Pre-drilled box with removable rubber plugs—no special tools needed
• Adjustable cord organizer prevents tangles and simplifies transport
• Compact storage bag included for neat stowage between uses
• Clear labeling and standard NEMA connector compatibility

Who is this for: This CircleCord kit is aimed at homeowners, contractors, and RV or outdoor-event operators who need a robust, ready-to-install generator-to-house power solution. It suits anyone who wants a code-conscious twist-lock connection for a manual transfer switch or temporary power distribution, values weather-resistant construction, and prefers an out-of-the-box kit that reduces installation time and post-use storage hassle.