NEMA 5-15P to 3-Way NEMA 5-15R Splitter Extension Cord with Weatherproof Caps
Attached Weatherproof Caps: Each NEMA 5-15R outlet is equipped with a tethered rubberized cover that seals the contacts when not in use. This protects the copper terminals from moisture, dust, and debris in harsh outdoor or construction environments.
Heavy-Duty Molded Splitter Block: The central junction is injection-molded to fully encapsulate the wire branching point. This structural reinforcement absorbs pulling tension from three different directions, preventing internal conductor fracture during heavy field use.
Grounded 3-Conductor Architecture: Built with line, neutral, and ground conductors to provide a fully compliant 125V AC earth-grounded connection. This ensures safe operation for commercial power tools, outdoor AV equipment, and metal-chassis appliances.
OEM Customization Options: The main trunk length, individual branch lengths, wire gauge (such as 14AWG or 12AWG for high-draw loads), jacket material (SJTW/SOOW), and packaging can be fully customized by our factory to match your commercial procurement specifications.
- Product Description
NEMA 5-15P to 3-Way NEMA 5-15R Splitter Extension Cord with Weatherproof Caps
The NEMA 5-15P to 3-Way NEMA 5-15R Splitter Extension Cord is engineered to deliver safe, centralized power distribution for outdoor and commercial environments. By splitting a single 125V AC source into three distinct branches—each protected by a tethered weatherproof cap—this cord eliminates the need for bulky power strips on wet ground. Manufactured with heavy-duty SJTW/SOOW jackets and injection-molded junctions, it maintains a strict 0.1% defect rate for professional AV, construction, and holiday lighting applications.


Why Choose Our 3-Way Power Splitter Cord?
Standard single-outlet cords force users to daisy-chain connections, which increases voltage drop and electrical hazards. This 3-way splitter provides a safer, star-topology distribution point directly where power is needed.
1-to-3 Splitter Block Streamlines Power Routing
The heavy-duty molded junction divides the main power trunk into three separate NEMA 5-15R branches. This allows installers to power three distinct devices from a single wall outlet without relying on non-compliant indoor power strips. The result is a cleaner job site, fewer tripping hazards, and faster equipment setup.
Weatherproof Outlet Caps Protect Unused Connections
Each of the three NEMA 5-15R female receptacles is fitted with a tethered rubberized cap. When an outlet is not actively powering a device, the cap seals the interface against water, dust, and sawdust. This critical feature prevents short circuits and contact corrosion when used outdoors or in harsh construction environments.
Heavy-Duty Jacket for Outdoor Durability
Constructed with SJTW or SOOW outer jackets, this cable is formulated to resist UV degradation, abrasion, and moisture. It remains flexible in cold temperatures, ensuring that landscape installers and event crews can deploy the cord easily regardless of seasonal weather changes.
Injection-Molded Strain Relief Absorbs Tension
The NEMA 5-15P plug, the central splitter block, and the three receptacle ends all feature deep, injection-molded strain reliefs. This structural design distributes the pulling force caused by dragged equipment, preventing the internal copper conductors from tearing loose during heavy field operations.
Complete Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | NEMA 5-15P to 3-Way NEMA 5-15R Splitter Extension Cord |
| Input Plug | NEMA 5-15P Male Plug, 3-Prong Grounded |
| Output Receptacles | 3 x NEMA 5-15R Female Receptacles with Weatherproof Caps |
| Standard Classification | Multi-Outlet Power Distribution Cord / Outdoor Splitter |
| Voltage Rating | 125V AC |
| Current Rating | Up to 15A total combined load, depending on wire gauge and configuration |
| Wire Gauge Options | 16AWG / 14AWG / 12AWG pure copper conductor options |
| Cable Jacket Options | SJTW / SOOW (Outdoor / Weather-Resistant) |
| Junction Structure | Heavy-duty molded 1-to-3 splitter block |
| Customization Options | Trunk length, branch length, AWG, jacket color, labeling, packaging |
| Certification Options | [Certification Options] |
Buyer's Insight: The critical factor when sourcing a multi-way splitter is the total ampacity. A 3-way cord does not multiply the power source; the combined current draw of all three connected devices must not exceed the rating of the NEMA 5-15P plug and the selected wire gauge (e.g., 15A max on a 14AWG or 12AWG build). Always specify the wire gauge based on the heaviest anticipated aggregate load to prevent overheating.
Professional Applications You Can Trust
For outdoor holiday and landscape lighting, installers need to route power to multiple light strings across a yard. The 3-way splitter acts as a central hub, while the weatherproof caps keep unused outlets safe from rain and sprinklers.
On construction job sites, workers frequently need to plug in a saw, a battery charger, and a work light at the same location. This heavy-duty grounded splitter allows multiple tools to be powered safely without relying on fragile indoor power strips.
For temporary event and stage setups, DJ equipment and AV gear require organized power distribution. The molded junction block withstands foot traffic and equipment roll-overs far better than standard multi-plug adapters.
Advanced Safety Features
This cord maintains a continuous earth ground from the NEMA 5-15P plug to all three NEMA 5-15R receptacles. Ground continuity is essential for the safe operation of tools and appliances with metal housings.
The weatherproof caps are designed to protect against rain, splashing, and dust when the outlet is not in use. However, the connection point between the plug and the receptacle is not submersible. The splitter junction and connections should be kept clear of standing water.
We utilize exclusively pure copper conductors to ensure maximum conductivity, which minimizes voltage drop and heat generation even when running high-draw equipment simultaneously across the branches.
Manufacturing Excellence
With 17 years of OEM power cord manufacturing experience, our factory implements rigorous quality control. Every splitter cord undergoes 100% automated electrical testing, including polarity, ground continuity, and dielectric withstand (Hi-Pot) tests. Our robust injection molding process ensures the splitter block will not crack under heavy mechanical stress.
Frequently Asked Questions
Q: Are the outlet caps fully waterproof?
A: The tethered caps provide excellent weather resistance against rain, splashing, and dust when securely closed over unused outlets. They are not rated for total underwater submersion.
Q: Can I use all three outlets at the same time?
A: Yes, provided the total combined amperage of the three plugged-in devices does not exceed the maximum rating of the cord (typically 15A for a 14AWG or 12AWG cable on a 125V AC circuit).
Q: What wire gauge should I choose for outdoor power tools?
A: For heavy-duty power tools like circular saws or air compressors, we highly recommend 14AWG or 12AWG to prevent voltage drop and ensure the tools receive adequate power without overheating the cord.
Q: What information is needed for a quotation?
A: Please provide the main trunk length, the length of the three branches, required wire gauge (16/14/12AWG), jacket type (e.g., SJTW), target certification, order quantity, and any custom packaging requests.
Custom Solutions for Your Business
Length Customization: Specify the exact length of the main trunk (from the wall to the splitter block) and the length of the individual branches to optimize reach for your specific application.
Wire Gauge and Jacket Selection: Choose between 16AWG for lighter lighting loads, or 14AWG/12AWG for heavy machinery. Select SJTW for general outdoor use or SOOW for maximum oil, chemical, and abrasion resistance.
Color and Branding Options: While black is standard, we can produce high-visibility colors (like Yellow, Orange, or Green) for construction sites. Custom molded logos on the splitter block and custom retail packaging are also available.
Low MOQ Sampling: We support flexible sample dispatch timelines, allowing your engineering team to verify the cord's load capacity and physical durability before committing to bulk production.
Contact Us
✔ OEM & ODM Support | ✔ 100% Factory Tested | ✔ Fast Sample Dispatch
Ready to discuss your NEMA 5-15P to 3-Way Splitter Extension Cord requirements? contact us at rhea@szkuncan.net for expert guidance and competitive pricing.



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