30 Amp Generator Inlet Box with 4 Pre Drilling Big Wiring Holes, NEMA L14 30P Waterproof Power Inlet Box for 4 Prong Generator RV Cord with LED Power Indicator, 125/250V, 7500W,30A,ETL Listed,Outdoo

• 【NEMA L14‑30P 30 Amp Generator Inlet Box】This is an outdoor weatherproof electrical inlet box rated at 125/250V and 7500W, compatible with 30‑amp NEMA L14‑30P generator cords. It adopts a pre‑drilled design, replacing conventional knockout holes with removable waterproof gaskets for easy disassembly and assembly without drilling. Featuring a twist‑lock receptacle design, the plug locks securely with a simple twist after insertion, delivering a more stable connection when heavy‑duty cables are used for generator hookup.
• 【4 Way Wiring Configuration】 1.2 inch openings are available on four sides (left, right, bottom and back) of the enclosure, supporting up to 10AWG gauge wires. It allows multi angle direct connection to transfer switch or electrical panel to minimize wire bending. The internal wiring space is 50% larger than standard inlet boxes, paired with a removable front panel for easy inspection and fast wiring while improving heat dissipation. Reliable cable clamping structure holds cables firmly in place and eliminates hazards caused by loose wiring. Three mounting holes are pre drilled on the rear of enclosure, coming with 3 sets of plastic expansion screws for wall mount installation.
• 【4 Way Wiring Configuration】 1.2 inch openings are available on four sides (left, right, bottom and back) of the enclosure, supporting up to 10AWG gauge wires. It allows multi angle direct connection to transfer switch or electrical panel to minimize wire bending. The internal wiring space is 50% larger than standard inlet boxes, paired with a removable front panel for easy inspection and fast wiring while improving heat dissipation. Reliable cable clamping structure holds cables firmly in place and eliminates hazards caused by loose wiring. Three mounting holes are pre drilled on the rear of enclosure, coming with 3 sets of plastic expansion screws for wall mount installation.
• 【ETL Listed for Enhanced Safety】 ETL safety certified. Built in green power indicator light illuminates once generator cord is connected and power is on, clearly indicating working status even in dim surroundings. Ideal for home emergency backup, RV shore power and outdoor power generation. It can be routed safely through exterior walls to directly connect to transfer switch or electrical panel, eliminating unsafe cord routing through doors and windows and avoiding cable pinching damage hazards.
• 【ETL Listed for Enhanced Safety】 ETL safety certified. Built in green power indicator light illuminates once generator cord is connected and power is on, clearly indicating working status even in dim surroundings. Ideal for home emergency backup, RV shore power and outdoor power generation. It can be routed safely through exterior walls to directly connect to transfer switch or electrical panel, eliminating unsafe cord routing through doors and windows and avoiding cable pinching damage hazards.

NEMA L14‑30P 30 Amp Generator Inlet Box

This is an outdoor weatherproof electrical inlet box rated at 125/250V and 7500W, compatible with 30‑amp NEMA L14‑30P generator cords. It adopts a pre‑drilled design, replacing conventional knockout holes with removable waterproof gaskets for easy disassembly and assembly without drilling. Featuring a twist‑lock receptacle design, the plug locks securely with a simple twist after insertion, delivering a more stable connection when heavy‑duty cables are used for generator hookup.

4 Way Wiring Configuration

1.2 inch openings are available on four sides (left, right, bottom and back) of the enclosure, supporting up to 10AWG gauge wires. It allows multi angle direct connection to transfer switch or electrical panel to minimize wire bending. The internal wiring space is 50% larger than standard inlet boxes, paired with a removable front panel for easy inspection and fast wiring while improving heat dissipation. Reliable cable clamping structure holds cables firmly in place and eliminates hazards caused by loose wiring. Three mounting holes are pre drilled on the rear of enclosure, coming with 3 sets of plastic expansion screws for wall mount installation.

For Outdoor Applications

Heavy duty steel enclosure with anti rust powder coated finish delivers long lasting corrosion resistance for stable performance under harsh outdoor conditions. Sealed weatherproof flip cover closes tightly while not in use to block moisture ingress. Each opening is fitted with a removable waterproof gasket; you may remove gaskets as needed while remaining openings keep full sealing performance，NEMA compliant, UV resistant and anti aging. Widely compatible with RVs, electric vehicles, generators, welding machines and more. It provides continuous backup power from outdoor generators during power outages and severe weather events.

ETL Listed for Enhanced Safety

ETL safety certified. Built in green power indicator light illuminates once generator cord is connected and power is on, clearly indicating working status even in dim surroundings. Ideal for home emergency backup, RV shore power and outdoor power generation. It can be routed safely through exterior walls to directly connect to transfer switch or electrical panel, eliminating unsafe cord routing through doors and windows and avoiding cable pinching damage hazards.

2-Year Warranty

We provide a 2-Year warranty. If there is any quality issue, you can get a refund or replacement. If you have any questions, please do not hesitate to contact us via Amazon first. We will provide you with the best service and solution.