Hubbell HBL303NMBL 30A Inlet Boatside Polycarb
Hubbell HBL303NMBL 30A Inlet Boatside Polycarb Product Description
Discover the Reliability of Hubbell's 30A Boatside Inlet
Engineered for the demanding marine environment, this 30A boatside inlet ensures a secure and dependable shore power connection for your vessel. Crafted with rugged polycarbonate construction, it stands up to constant exposure to saltwater, UV rays, and harsh weather, keeping your boat powered without interruptions. Ideal for recreational boaters and commercial operators alike, it delivers the peace of mind that comes from trusted marine-grade performance.
Superior Build for Lasting Marine Performance
- Corrosion-Resistant Polycarbonate Housing: Non-metallic design prevents rust and degradation, even in salty coastal air, extending the inlet's lifespan far beyond standard alternatives.
- Weatherproof Sealing: Gasketed cover and robust seals block moisture, dust, and debris, maintaining a watertight connection during storms or high-pressure dockside washes.
- Finger-Safe Terminals: Recessed contacts minimize accidental shocks, prioritizing safety for you and your crew during connections or maintenance.
- Twist-Lock Configuration: Secure NEMA L5-30R receptacle locks plugs firmly in place, resisting vibration from waves or engine rumble that could loosen standard plugs.
Why Boaters Choose This Inlet for Shore Power
Unlike flimsy imports that crack under pressure, this inlet meets stringent UL marine standards, ensuring it handles 30A at 125V without overheating or failing. Boaters report fewer power glitches and easier docking routines, as the compact boatside mounting fits seamlessly on transoms or bulkheads. It's not just about plugging in—it's about powering adventures reliably, from weekend cruises to extended offshore trips.
Effortless Installation and Everyday Use
Mounting is straightforward with pre-drilled holes and included hardware, fitting most boat hulls without modifications. Connect to your onboard wiring using color-coded terminals that accept up to #10 AWG wire, simplifying the job for DIY enthusiasts or pros. Once installed, the spring-loaded cover snaps shut automatically, protecting contacts when not in use. Pair it with standard 30A shore power cords for a plug-and-play setup at marinas worldwide.
Pro Tips for Optimal Performance
- Position the inlet at least 18 inches above the waterline to avoid splash damage.
- Inspect seals annually and lubricate with marine silicone for peak weather resistance.
- Use only compatible twist-lock plugs to prevent arcing and ensure full power delivery.
- For high-use boats, add a strain relief boot on the cord to further safeguard connections.
Built to Outperform in Real-World Conditions
Feedback from salty captains highlights its edge: it shrugs off ozone, chemicals from dock cleaners, and temperature swings from -40°F to 140°F. This isn't entry-level gear—it's the inlet serious boaters rely on to avoid blackouts mid-voyage, saving time, frustration, and repair costs down the line.
Frequently Asked Questions
What voltage and amperage does the Hubbell HBL303NMBL support?
It supports 30A at 125V, perfect for standard marine shore power needs on mid-sized boats.
Is this inlet suitable for saltwater environments?
Yes, the polycarbonate construction is UV-stabilized and corrosion-resistant, making it ideal for marine use including saltwater exposure.
Where should I install the boatside inlet on my boat?
Mount it on the transom or bulkhead, ideally 18-24 inches above the waterline for easy access and protection from splashes.
Does it come with a cordset or plug?
No, this is the inlet only. Pair it with a compatible 30A twist-lock shore power cord.
How do I maintain the inlet for long-term reliability?
Rinse with fresh water after saltwater exposure, check seals for wear, and apply marine-grade silicone lubricant yearly.
Is it compatible with common marina power pedestals?
Yes, it accepts standard NEMA L5-30P twist-lock plugs found at most marinas.
What wire size can I use for connections?
It accommodates up to #10 AWG wire, ensuring safe and efficient power transfer.
Hubbell HBL303NMBL 30A Inlet Boatside Polycarb
Model: HBL303NMBL- Expertly crafted from premium materials
- Designed to match rigorous quality standards
- High quality at a budget-friendly price
| Brand | |
| Part Number | HBL303NMBL |
Frequently Asked Questions (FAQ) About Hubbell HBL303NMBL 30A Inlet Boatside Polycarb
Who is the Hubbell Marine?What is the highlights of Hubbell HBL303NMBL 30A Inlet Boatside Polycarb?
Who is the Hubbell Marine?
What is the highlights of Hubbell HBL303NMBL 30A Inlet Boatside Polycarb?
Save $16 when you buy the Hubbell HBL303NMBL 30A Inlet Boatside Polycarb for only $112 from NVN Marine! Same day shipping before 3pm.
Hubbell HBL303NMBL 30A Inlet Boatside Polycarb Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Hubbell Marine |
| Weight: |
1.0 lb |
Hubbell HBL303NMBL 30A Inlet Boatside Polycarb User Reviews
Hubbell HBL303NMBL 30A Inlet Boatside Polycarb Shipping & Return
| Shipping Weight: |
1.0 lb |
|---|---|
| Box Sizes: |
1.00 (h) x 1.00 (w) x 1.00 (l) |
| Cubic Feet: |
1.0 |
| Returnable: |
Yes |
| USPS First Class: |
Yes |
| P65: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.


