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The exclusive patented design provides generous wiring space and facilitates rough-in. Power inlet box is an outdoor/watertight electrical inlet for a 30 amp l14-30 generator cord. This inlet box is then safely hardwired through an outside wall directly to the transfer switch or panel, eliminating the need for cords running through windows or doors.
The front entry inlet has a weatherproof spring cover which closes when not in use to protect the inlet from the elements. The face of the box is removable for easy placement and wiring. It is designed to be wired directly to the transfer switch. It is designed to be located outdoors where the generator is running to prevent dangerous carbon monoxide fumes from the generator from entering your house. This rain-tight, bottom and back, and push-in wire connections.

10 awg wire supported in Max. No more serious curving wire. Comparing with old version, especially at night or dark area. 4 ways connection1.
Etl certified30a, providing and maintaining continous backup power supply from the generator outside, 7500w generator inlet box with neam l14-30 inlet generator plug, 125/250V, designed for all 30 amp NEMA L14-30 generator cord. Power on indicationupgraded with the green light power on indication on the lid, WELLUCK power inlet box is more visible and safer when working, will light on when plug in and start power connection.


Twist locking plug connector: Secure locking design that plug is locking tightly on generator to prevent loosing and falling out. Easy to install with enclosed wiring instruction printed on the inside of the box.


2" knockouts on 4 areas left, right, bottom & Back could connect to transfer switch and electric panel on multi-directions straightly. The best partner for generator to house power cord, providing and maintaining continous backup power supply from the generator outside, especially when short of power, 3750/7500W, terrible weather.
Power inlet box is more visible and safer when working, especially at night or dark area. Comparing with old version, what's more, larger space makes the whole installation easier and faster, the heat-dissipation will be better and guarrantee long lifetime. Etl certified30a, generator inlet box with cs6375 inlet generator plug, 125/250v, 60hz, designed for all 30 amp nema ss2-30 generator cord.




Safety assurance: 10 awg 3 conducor heavy duty cord made of copper with PVC in UL 62 standard for heat-proof insulation and antioxidants, and plug in UL 817 standard support. Produc specification: recreational vehicle adapter cord tt-30P to L14-30R Two hots bridged support max 30 Amp overload, max wattage 3750 watts, 125V, 1.5
Hight quality material: 600-volt thermoplastic stw jacket and 10 AWG American wire gauge x 3C all-copper wires, features excellent abrasion, oil and moisture resistance and flexibility. You can connect your generator to a transfer switch for emergency power using this cord: NEMA TT-30P locking plug end connects to 3 prong generator outlet, NEMA L14-30R receptacle end connects to 4 prong power transfer switch inlet.
1. S7
#ad
Generators Up to 7,500 Running Watts S7 30-Amp NEMA 3R Power Inlet Box, Black
#adS7 #ad - Using one of the four combination 1/2-inch and 3/4-inch knockouts one on each side, rust-proof unit includes an NEMA L14-30P inlet plug, six knockout holes, the power inlet box can be wired directly to the transfer switch or panel. It is designed to be installed outdoors in an open area where the generator is being used to avoid carbon monoxide hazard.The exclusive patented design provides generous wiring space and facilitates rough-in. Power inlet box is an outdoor/watertight electrical inlet for a 30 amp l14-30 generator cord. This inlet box is then safely hardwired through an outside wall directly to the transfer switch or panel, eliminating the need for cords running through windows or doors.
More information #ad
The rain tight nema 3r pbn-series steel power inlet box is designed for use with pro/tran transfer switches, Panel/Link transfer panels and generator-ready load centers. The front entry inlet has a weatherproof spring cover which closes when not in use to protect the inlet from the elements. The face of the box is removable for easy placement and wiring. It is designed to be wired directly to the transfer switch. It is designed to be located outdoors where the generator is running to prevent dangerous carbon monoxide fumes from the generator from entering your house. This rain-tight, bottom and back, and push-in wire connections.
Brand | S7 #ad |
Manufacturer | win-win #ad |
More information #ad
2. WELLUCK
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ETL Listed, Weatherproof, Generator Outlet, 125/250 Volt, PB30, WELLUCK 30 Amp Generator Power Inlet Box, NEMA 3R Power Inlet Box with 4 Prone, 7500W Generator Inlet for Outdoor Receptacle, L14-30P
#adWELLUCK #ad - Larger spacethe front panel is removable for wiring up. The best partner for generator to house power cord, especially when short of power, terrible weather. Weatherproof & rust resistancethe whole metal body is covered by anti-rust powder coating and the fliping cap could be shut down when it is not working in order to prevent dust, humid air and water.10 awg wire supported in Max. No more serious curving wire. Comparing with old version, especially at night or dark area. 4 ways connection1.
More information #ad
2" knockouts on 4 areas left, right, bottom & Back could connect to transfer switch and electric panel on multi-directions straightly. Comparing with old version, what's more, larger space makes the whole installation easier and faster, the heat-dissipation will be better and guarrantee long lifetime. Etl certified30a, providing and maintaining continous backup power supply from the generator outside, 7500w generator inlet box with neam l14-30 inlet generator plug, 125/250V, designed for all 30 amp NEMA L14-30 generator cord. Power on indicationupgraded with the green light power on indication on the lid, WELLUCK power inlet box is more visible and safer when working, will light on when plug in and start power connection.
Brand | WELLUCK #ad |
Manufacturer | WELLUCK #ad |
More information #ad
3. Champion Power Equipment
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Champion 25-Foot 30-Amp 250-Volt Generator Power Cord for Manual Transfer Switch L14-30P to L14-30R
#adChampion Power Equipment #ad - Safe – extend your power up to 25 feet away, protecting you and others from hazardous generator exhaust. Reliable – champion support includes 1-year limited warranty with FREE lifetime technical support from dedicated experts. Powerful – connect the locking outlet on your generator to the manual transfer switch on your home and extend up to 30 amps of power.More information #ad
Weather resistant – Service grade, abrasion and weather-resistant SJTW insulation. Flexible – the cold and heat resistant 25-foot, 10-gauge wire stays flexible in extreme temperatures and is rated for 250-volt use.Brand | Champion Power Equipment #ad |
Manufacturer | Champion Power Equipment #ad |
Height | 1.5 Inches |
Length | 10.6 Inches |
Weight | 8.8 Pounds |
Width | 10.6 Inches |
Part Number | 100395 |
Model | 100395 |
More information #ad
4. Kohree
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Industrial Grade Outlet Adapter 7,500W, Twist Locking Plug Receptacle Connector 125/250V, UL Listed, Kohree NEMA L14-30R Generator Female Plug 30 Amp 4 Prong
#adKohree #ad - Application: l14-30r 30 amp female plug 4 prong good for your electrical set-up, RV, transfer switches, suitable for generators, trailer & camper welding equipment. And well-constructed with durabble copper parts, and sturdy nylon bases.Twist locking plug connector: Secure locking design that plug is locking tightly on generator to prevent loosing and falling out. Easy to install with enclosed wiring instruction printed on the inside of the box.
More information #ad
Safe operation: the contacts are covered with plastics without wrapping wires around screws, but it slide each wire into a separate tube and tighten them to prevent shorting or stray strands. Ul listed generator plug: interior made of rubber grommet to protect wires from moisture and dirt. Nema l14-30r female plug: 30 amp twist locking plug, up to 7, 500W, 4 wire 10-gauge cord, 125/250V, 3 pole, fit for generator with 30A outlet.Brand | Kohree #ad |
Manufacturer | Kohree #ad |
More information #ad
5. Cllena
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Cllena NEMA L14-30 Flanged Generator Power Inlet/Outlet Receptacle Socket with Cover 30 Amp 125/250V 7500W Black
#adCllena #ad - 15 amp 125 volts ac 2-pole 3-wire flanged Inlet Rated Up To 1875 Watts. Works perfectly for use with generator transfer switches or power inlet plug to supply power to your home, boat, business, Rv or trailer.More information #ad
Cul listed approved plug 91gg, accommodates 10-14 AWG Gauge Wiring. Clear see-thru wiring block & color Coded Positive Crimp Lock Wire Clamps Make Wiring Easy. Super tough black nylon body resists damage From UV Degradation, Severe Impact, Abrasion, Chemicals; water and dust resistance by a rubber cover.Brand | Cllena #ad |
Manufacturer | Cllena #ad |
Height | 2.7 Inches |
Length | 3.3 Inches |
Width | 3.2 Inches |
Part Number | 1430P-IBK-G |
More information #ad
6. EXF
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Generator Outlet, Weatherproof., EXF 30A Power Inlet Box L14-30P,with Waterproof Cover and Generators with Indicator Light,Meet North American StandardGenerator Inlet for Outdoor Receptacle
#adEXF #ad - Larger spacethe front panel is removable for wiring up. No more serious curving wire. 10 awg wire Supported in Max. Power on indicationthe green light power on indication on the lid, will light on when plug in and start power connection. 4 ways connection1.2" knockouts on 4 areas left, right, bottom & Back could connect to transfer switch and electric panel on multi-directions straightly. The best partner for generator to house power cord, providing and maintaining continous backup power supply from the generator outside, especially when short of power, 3750/7500W, terrible weather.
More information #ad
Weatherproof & rust resistancestrong - tough nylon body resists damage From UV Degradation, The whole metal body is covered by anti-rust powder coating and the fliping cap could be shut down when it is not working in order to prevent dust, Chemicals, Abrasion, Impact, humid air and water. Power inlet box is more visible and safer when working, especially at night or dark area. Comparing with old version, what's more, larger space makes the whole installation easier and faster, the heat-dissipation will be better and guarrantee long lifetime. Etl certified30a, generator inlet box with cs6375 inlet generator plug, 125/250v, 60hz, designed for all 30 amp nema ss2-30 generator cord.
Brand | EXF #ad |
Manufacturer | EXF #ad |
More information #ad
7. Temco
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Temco NEMA L14-30R Female Receptacle 30A 125/250V Locking UL for Generator
#adTemco #ad - We pay for the shipping back to us and will either replace or refund the purchase. 1 year no-questions-asked return policy. Ul certified, so you can be confident in the product's safety.More information #ad
1 year gurantee on any manufacturing defects. Temco industrial is a well established brand in electrician's tools, equipment, and accessories. Sturdy reinforced nylon construction for a lasting finished product.Brand | Temco #ad |
Manufacturer | TEMCo #ad |
Part Number | CP0009 |
Model | CP0009 |
More information #ad
8. Parkworld
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Parkworld 886115 Combiner, Household 2 5-15 Plug Male to Generator Twist Lock L14-30 Receptacle Female Y Adapter Cord
#adParkworld #ad - American standard household regular 3-prong 15 AMP 5-15 male plugs*2 for 125V. Used two of 12 awg*3 stranded copper inner wires with each 5-15 plug, support max 20 Amp overload input each.More information #ad
Used 10awg*4 copper inner wire with L14-30 female, support output max 30 Amp overload. 100% copper wire conductor inside. Generator nema l14-30 receptacle 4 pole 30 AMP Locking female for 125V / 250V. Heavy-duty combiner y adapter cord, 2 5-15P to L14-30R Y adapter cord.Brand | Parkworld #ad |
Manufacturer | Parkworld #ad |
Weight | 2 Pounds |
Part Number | 886115 |
Model | 886115 |
More information #ad
9. Parkworld
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Parkworld 884975 Generator Adapter 4-Prong Locking 20A L14-20 Plug to 30A Locking L14-30 Receptacle
#adParkworld #ad - Generator l14-30, 4-prong 30 AMP locking female connector. Generator l14-20, 4-prong 20 amp locking male plug. Molded with electroplate copper terminal in order to avoid surface oxidation effectively.More information #ad
Test electrical function by UL & cUL standard. 1 piece adaptor for generator L14 20A to L14 30A home transfer switch or house panel. Ac power adapter l14-20p to l14-30r 125v/2500w, 250v/5000w. Heavy-duty round power 1-piece adapter plug for generator, 100% copper conductor inside.Brand | Parkworld #ad |
Manufacturer | Parkworld #ad |
Height | 3.5 Inches |
Length | 2 Inches |
Weight | 0.36 Pounds |
Width | 2 Inches |
Part Number | 884975 |
Model | 884975 |
More information #ad
10. Rophor
#ad
30 Amp 3 Prong to 4 Prong Generator Plug Adapter, Rophor Generator Transfer Switch Adapter Cord TT-30P Male to L14-30R Female, 1.5FT, RV Generator Plug to Inlet Box
#adRophor #ad - It should last for a long time even with rugged use. Generator to transfer switch inlet box: nema tt-30 outlet usually is found installed in generators and RV power pedestals. Why choose us: rophor specializes in the production of various adapter power cords.Safety assurance: 10 awg 3 conducor heavy duty cord made of copper with PVC in UL 62 standard for heat-proof insulation and antioxidants, and plug in UL 817 standard support. Produc specification: recreational vehicle adapter cord tt-30P to L14-30R Two hots bridged support max 30 Amp overload, max wattage 3750 watts, 125V, 1.5
More information #ad
5 feet. 100% of the products have been rigorously tested to ensure that each product received by our user can work perfectly. Won’t sacrifice the quality for the price, we provide 5 years of worry-free maintenance, and look forward to your letter. Hight quality material: 600-volt thermoplastic stw jacket and 10 AWG American wire gauge x 3C all-copper wires, features excellent abrasion, oil and moisture resistance and flexibility. You can connect your generator to a transfer switch for emergency power using this cord: NEMA TT-30P locking plug end connects to 3 prong generator outlet, NEMA L14-30R receptacle end connects to 4 prong power transfer switch inlet.
Brand | Rophor #ad |
Manufacturer | Rophor #ad |
Height | 2 Inches |
Length | 10 Inches |
Width | 8 Inches |
More information #ad