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Hubbell M5100R7 100A 480V 5-Wire ReceptacleDiscover the Reliability of the Hubbell M5100R7 Receptacle Engineered for the harshest environments, the Hubbell M5100R7 stands out as a robust 100A, 480V, 5 wire receptacle tailored for marine and heavy duty applications. Its insulated non metallic housing shields against corrosion and extreme weather, while the self closing gasketed cover ensures a watertight seal every time. Color coded in bright yellow for instant 480V recognition, this device
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Discover the Reliability of the Hubbell M5100R7 Receptacle
Engineered for the harshest environments, the Hubbell M5100R7 stands out as a robust 100A, 480V, 5-wire receptacle tailored for marine and heavy-duty applications. Its insulated non-metallic housing shields against corrosion and extreme weather, while the self-closing gasketed cover ensures a watertight seal every time. Color-coded in bright yellow for instant 480V recognition, this device simplifies safety checks and reduces installation errors in busy marinas or industrial docks.
Unlike standard outlets that falter under salt spray or constant moisture, this IEC pin and sleeve receptacle delivers unwavering performance. It's not just about power delivery—it's about peace of mind for vessel operators, dock masters, and facility managers who demand gear that lasts through seasons of relentless exposure.
Standout Features for Demanding Conditions
- Corrosion-Resistant Housing: Crafted from high-impact, non-metallic materials that resist UV rays, chemicals, and saltwater, keeping connections pristine over time.
- Watertight Design: The self-closing cover with integrated gasket snaps shut automatically, blocking water ingress even in pounding rain or waves—ideal for exposed marine settings.
- Easy Identification: Vibrant yellow coloring aligns with industry standards, making voltage quick to spot and preventing mix-ups during high-pressure operations.
- Solid Connections: Pressure screw terminals accept #3 AWG to #1/0 AWG wires, ensuring secure, vibration-proof terminations that handle heavy loads without loosening.
- Grounding Excellence: 4-pole, 5-wire configuration provides reliable three-phase Y 277/480V AC grounding, safeguarding equipment and personnel in critical power chains.
Detailed Technical Specifications
| Specification | Details |
|---|---|
| Number of Poles | 4-Pole |
| Amperage & Current Rating | 100A |
| Connectivity | Pressure Screw Terminals |
| Phase Configuration | Three Phase |
| Voltage Rating | Three Phase Y 277/480 VAC |
| Number of Wires | 5-Wire Grounding |
| Wire Size Range | #3 AWG to #1/0 AWG |
Ideal Applications for Marine and Industrial Power
The Hubbell M5100R7 excels where power reliability meets environmental toughness. Deploy it confidently at marinas for shore power to large yachts, commercial fishing vessels, or naval crafts needing stable 480V feeds. In industrial waterfronts, it powers cranes, pumps, and lighting arrays exposed to spray and humidity.
Its marine-grade build also suits oil rigs, shipyards, and coastal facilities, where downtime from faulty connections isn't an option. Operators appreciate how it mates seamlessly with matching plugs, creating interlocked systems that prevent accidental disconnection under load.
Why This Receptacle Outperforms the Rest
Investing in the M5100R7 means fewer replacements and less hassle. The non-metallic enclosure won't rust or degrade like metal alternatives, extending service life in corrosive atmospheres. That self-closing lid? It minimizes dust buildup and maintains IP ratings, crucial for compliance in regulated marine zones.
Safety is paramount: Superior grounding and color coding slash arc flash risks, while the pin-and-sleeve mechanism resists strain from cord pulls. For teams wiring large conductors, the terminal design speeds up jobs without compromising clamp strength—perfect for retrofits or new installs.
Pro Tips for Installation and Long-Term Care
Installation Essentials: Always de-energize circuits first. Strip wires precisely to fit #3-#1/0 AWG specs, then torque screws to manufacturer guidelines for optimal contact. Mount securely on NEMA enclosures or panels, ensuring the gasket aligns for a drip-proof fit. Test continuity and ground paths post-install with a multimeter.
Maintenance Best Practices: Quarterly inspections catch early wear—check for gasket cracks, terminal heat marks, or housing stress. Rinse salt residues with fresh water, avoiding abrasives. Lubricate moving parts sparingly with marine-safe silicone. In high-use spots, log usage to predict swaps before failures hit.
These steps keep your setup humming, maximizing ROI on this durable powerhouse.
Frequently Asked Questions
What environments is the Hubbell M5100R7 receptacle best suited for?
It's optimized for marine and coastal settings, including marinas, docks, shipyards, and industrial waterfronts where moisture, salt, and UV exposure are constant challenges.
Can the M5100R7 handle three-phase power systems?
Yes, it supports three-phase Y configurations at 277/480 VAC, with 4-pole, 5-wire grounding for safe, high-capacity power delivery.
What wire sizes are compatible with this receptacle?
It accommodates #3 AWG to #1/0 AWG conductors via pressure screw terminals, ideal for heavy-duty wiring without adapters.
Is the housing on the M5100R7 corrosion-resistant?
Absolutely—made from insulated non-metallic materials that withstand saltwater, chemicals, UV rays, and impacts far better than metal housings.
How does the self-closing cover benefit users?
It automatically seals against water, dust, and debris when not in use, maintaining watertight integrity and extending component life in wet environments.
Why is the yellow color important for this model?
Yellow coding signals 480V operation per industry standards, aiding quick visual identification to enhance safety and prevent voltage mismatches.
Does it meet marine-grade standards?
Yes, as part of Hubbell's Marine Grade IEC Pin and Sleeve line, it's built for rugged, weatherproof performance in demanding nautical applications.
Hubbell M5100R7 5-Wire 100 Amp 480 Volt Receptacle
Model: M5100R7- Insulated non-metallic housing
- Self-closing gasketed cover
- Color coded housings for easy identification
Heavy Duty Products, IEC Pin and Sleeve Devices, Marine Grade, Female, Receptacle, 100A 3-Phase Wye 277/480V AC, 4-Pole 5-Wire Grounding, Terminal Screws, Yellow
Specifications| Number Of Poles | 4 |
| Amperage Rating | 100 |
| Connectivity | Pressure Screw Terminals |
| Current Rating | 100 |
| Phase | Three Phase |
| Voltage Rating | Three Phase Y 277 VAC Three Phase Y 480 VAC |
| Number Of Wires | 5 |
| Wire Size | #3 AWG to #1/0 AWG |
"HubbellHubbell nylon dockside receptacle has gasketed, spring-loaded cover. Closes automatically when not in use and is watertight when securely fastened. Mounting holes are 4.88\" on centers. Mounting screws and gasket included. Corrosion resistant. IP67 suitability. UL listed and CSA certified. Available in gray color."
SKU: NVN-1002124
MPN: M5100R7
UPC: 783585510071
Hubbell M5100R7 100A 480V 5-Wire Receptacle
Item no
:
49476239215
US$ 367.00
Pay in 4 interest-free payments of $91.75 Learn more
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1piece
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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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