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NEMA 5-15P Flanged Inlet to 3-Way NEMA 5-15R Power Extension Cord Splitter with Weatherproof Covers

1 NEMA 5-15P flanged inlet to 3-way NEMA 5-15R extension cord splitter helps distribute power from one mounted inlet to three standard receptacle outlets for flexible equipment connection.
2 Built for North American power applications with 15A 125V rating and durable SJTW jacket options, supporting dependable performance for temporary outdoor and indoor setups.
3 Integrated weatherproof outlet covers help protect unused receptacles from dust, splash, and jobsite debris when installed in suitable covered or semi-outdoor environments.
4 Flanged inlet design supports secure panel, cabinet, RV, trailer, generator, or custom equipment installation where a fixed male power entry point is required.
5 OEM and bulk customization available for cable length, wire gauge, plug configuration, jacket color, molded connector design, and private label packaging.
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  • Product Description

NEMA 5-15P Flanged Power Inlet to 3-Way NEMA 5-15R Outlet Splitter Cord for Outdoor Power Distribution

NEMA 5-15P flanged power inlet to 3-way NEMA 5-15R outlet extension cord splitter is designed for OEM power access panels, RV systems, generator boxes, trailer assemblies, and outdoor equipment cabinets that need one fixed inlet to feed three grounded receptacles. The typical rating is 15A 125V AC, with 14AWG or 16AWG copper conductor options, molded connectors, and protective outlet covers for outdoor-facing installations.

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Why Choose Our NEMA 5-15P Flanged Inlet Splitter Cord?

For buyers sourcing power cord assemblies, the problem is rarely just the plug shape. It is fit, load rating, cable flexibility, panel mounting stability, weather exposure, and batch consistency. This product is built around those details.

Flanged Inlet Structure → Cleaner Panel Mounting → Lower Assembly Risk

The NEMA 5-15P flanged inlet is intended for fixed mounting on an equipment panel, enclosure, or power access box. Compared with a loose male plug connection, the flange helps the assembly sit in a defined position and reduces movement during repeated connection and disconnection.

For OEM buyers, that means cleaner wiring layout, easier final assembly inspection, and fewer complaints caused by unstable external power access points.

Three NEMA 5-15R Outlets → Practical Power Distribution → Fewer Adapter Layers

The splitter end provides three grounded NEMA 5-15R female receptacles from one inlet connection. Simple. Useful. No overbuilt housing.

In RV panels, generator boxes, outdoor cabinets, and workshop setups, this layout helps users power multiple compatible devices without stacking several loose adapters, which can create poor contact, extra strain, and messy cable routing.

Weatherproof Outlet Covers → Better Receptacle Protection → Fewer Field Failures

Each female outlet can be supplied with a weatherproof cover to help protect unused receptacles from dust, splashing water, leaves, and jobsite debris. The cover does not turn the entire assembly into a submersible connector. That distinction matters.

For outdoor-facing equipment, this practical cover design helps reduce contamination at the outlet interface and supports longer service life when the cord is installed and stored correctly.

Custom Cable Build → Matched Electrical Load → Better Cost Control

Different buyers do not always need the same wire gauge. A short indoor cabinet lead may not require the same cable as a longer outdoor extension. We can match 14AWG, 16AWG, jacket material, molded shape, and cord length according to your actual project load and installation distance.

This helps distributors and equipment manufacturers avoid both underspecified cables and unnecessary material cost.

Complete Product Specifications

Specification ItemDetails
Product NameNEMA 5-15P Flanged Power Inlet to 3-Way NEMA 5-15R Outlet Extension Cord Splitter with Weatherproof Covers
Input EndNEMA 5-15P flanged male power inlet
Output End3 x NEMA 5-15R female receptacles
Electrical Rating15A 125V AC
Industry Standard ClassificationNorth American NEMA 5-15 series, 3-prong grounded power connector system
Wire Gauge Options14AWG or 16AWG, depending on order requirement
Conductor MaterialCopper conductor
Cable JacketPVC or rubber jacket options
Outlet ProtectionWeatherproof covers for female receptacles
Common Lengths1 ft, 2 ft, 3 ft, 6 ft, 10 ft, or customized length
Color OptionsBlack, yellow, orange, or custom jacket color
Certification MatchingETL, CSA, RoHS, or buyer-specified compliance package available by project
Typical ApplicationsRV power panels, generator boxes, trailer systems, outdoor equipment cabinets, workshop benches, temporary power distribution
Customization ScopeLength, wire gauge, plug molding, receptacle cover, logo marking, label, packaging, carton mark

Buyer's Insight: The main selection mistake with this type of cord is treating it like a normal extension cord. It is not. The flanged inlet changes the use case: it is better suited for panel-mounted power access where the inlet must stay fixed while the three outlets remain flexible for device connection. If the cord will be used outdoors, confirm the required cable jacket, cover structure, and installation direction before ordering.

Professional Applications You Can Trust

For RV and trailer power panels, buyers often need a compact way to route power from a fixed exterior inlet to several interior or accessory outlets. The NEMA 5-15P flanged inlet supports panel-style installation, while the three NEMA 5-15R receptacles provide practical access for compatible 125V devices.

For generator connection boxes and temporary outdoor power setups, the pain point is cable clutter and exposed unused sockets. This splitter cord helps reduce loose adapter layers, and the weatherproof covers help protect idle receptacles from dust and splashing exposure when closed properly.

For equipment cabinets and workshop benches, consistent cable length and connector orientation matter during assembly. Custom length, jacket color, and molded plug options allow the cord to match your enclosure layout instead of forcing the installation team to work around a generic cable.

Advanced Safety Features

The grounded NEMA 5-15 configuration supports standard North American 3-prong power applications. The 15A 125V rating should be matched with the connected device load, upstream circuit protection, cable gauge, and working environment before final use.

The molded connector body helps reduce exposed wiring points, while the weatherproof covers help protect unused receptacles from contamination. For outdoor use, the connection should still be positioned to avoid standing water, direct submersion, and excessive pulling force.

Wire gauge selection matters. For higher load or longer cable runs, 14AWG is often preferred over lighter cable options because it helps control heat rise and voltage drop under proper operating conditions.

Manufacturing Excellence

With 17 years of power cord manufacturing experience, we produce custom NEMA power cord assemblies for distributors, equipment manufacturers, outdoor power brands, and private-label buyers. Each production batch can be arranged with incoming material checks, plug fit inspection, polarity testing, grounding continuity checks, and 100% outgoing electrical testing before shipment.

Materials can be matched to buyer requirements, including copper conductors, PVC or rubber jackets, molded plug designs, warning labels, carton marks, and documentation for target-market compliance review.

Frequently Asked Questions

Q: What is the maximum power rating of this NEMA 5-15P flanged inlet to 3-way NEMA 5-15R splitter cord?

A: The typical rating is 15A 125V AC. In power terms, that equals up to 1875W under ideal rated conditions, but the actual usable load should follow the connected equipment rating, cable gauge, ambient temperature, and local electrical rules.

Q: Are the weatherproof covers fully waterproof?

A: The covers are designed to help protect unused outlets from dust, splashing water, and outdoor debris. They are not intended for submersion or standing-water exposure. If your project requires a defined IP rating, please provide the target rating before quotation so we can match the correct structure.

Q: Should I choose 14AWG or 16AWG for this 3-way power splitter cord?

A: For 15A applications, 14AWG is commonly selected when buyers need better current capacity margin or longer cord length. 16AWG may be considered for lighter-duty or shorter assemblies, depending on the final load requirement and certification plan.

Q: What is the sample dispatch timeline for a custom NEMA 5-15 splitter cord?

A: For existing mold designs, samples are usually arranged faster after confirming wire gauge, length, color, labeling, and packaging details. For custom molding or special cover structures, the timeline depends on tooling evaluation and drawing confirmation.

Custom Solutions for Your Business

Length Customization: We can produce short panel leads such as 1 ft, 2 ft, and 3 ft, as well as longer extension lengths for outdoor or equipment installations. Buyer drawings or reference samples are recommended when the cord needs to fit a fixed cabinet layout.

Wire Gauge & Material: 14AWG and 16AWG copper conductor options are available, with PVC or rubber jacket choices according to flexibility, temperature, and outdoor handling requirements.

Custom Molding: Plug body shape, flange structure, receptacle layout, cover style, cable exit direction, and jacket color can be adjusted for private-label or equipment-specific projects when tooling conditions allow.

Branding & Packaging: Cable printing, molded logo, rating label, warning tag, barcode label, inner bag, retail box, and export carton mark can be prepared according to distributor or OEM purchasing requirements.

Certification Matching: We can help match plug configuration, material documents, test process, and compliance direction according to your target market and project documentation requirements.

NEMA 5-15P Flanged Inlet to 3-Way NEMA 5-15R Power Extension Cord Splitter with Weatherproof Covers

Contact Us

✔ Rigorous QC Testing | ✔ OEM & ODM Welcomed | ✔ Fast Sample Dispatch

If you are sourcing this cord for an RV accessory line, generator panel, outdoor equipment cabinet, or private-label power distribution project, send us your target length, wire gauge, expected order quantity, and certification requirement. We will help you confirm the practical configuration before quoting.

Ready to discuss your NEMA 5-15P flanged inlet to 3-way NEMA 5-15R outlet splitter cord requirements? contact us at rhea@szkuncan.net for expert guidance and competitive pricing.

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