Hubbell HBL504NM 50A 125/250V Shore Power Inlet

SKU: 1000629 - UPC: 783585519470 - MPN: HBL504NM
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$114.29 $191.34 ( / )

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Hubbell HBL504NM 50A 125/250V Shore Power Inlet - Dual-Voltage Marine Power Connection Hubbell Marine Model: HBL504NM UPC: 783585519470 Advanced dual-voltage 50-amp marine shore power inlet designed for vessels requiring both 125V and 250V power capabilities. The Hubbell HBL504NM features heat-resistant thermoset interior construction with professional box lug terminals, providing secure...
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Hubbell HBL504NM 50A 125/250V Shore Power Inlet Product Description

Hubbell HBL504NM 50A 125/250V Shore Power Inlet - Dual-Voltage Marine Power Connection

Hubbell Marine Model: HBL504NM UPC: 783585519470

Advanced dual-voltage 50-amp marine shore power inlet designed for vessels requiring both 125V and 250V power capabilities. The Hubbell HBL504NM features heat-resistant thermoset interior construction with professional box lug terminals, providing secure connections for high-power marine electrical systems on luxury yachts and large powerboats.

This non-metallic inlet combines corrosion-free construction with superior electrical performance, featuring UV-resistant white Centrex cover that maintains weatherproof integrity. The advanced terminal design accommodates the demanding wiring requirements of dual-voltage shore power systems.

Key Features & Dual-Voltage Benefits

  • Dual-Voltage Capability: Supports both 125V and 250V shore power systems for maximum electrical flexibility
  • High-Capacity 50-Amp Rating: Handles demanding electrical loads from large vessels with comprehensive electrical systems
  • Heat-Resistant Interior: Thermoset material construction withstands high electrical loads without degradation
  • Professional Box Lug Terminals: Secure, high-current connections for large gauge marine wiring
  • Corrosion-Free Design: Non-metallic construction eliminates galvanic corrosion concerns
  • UV-Resistant Cover: White Centrex material maintains integrity and appearance under marine sun exposure
  • Complete Weather Protection: IP56 rating ensures weatherproof performance when properly closed

Technical Specifications

Current Rating: 50 Amperes
Voltage: 125/250V AC
Interior Material: Heat-resistant thermoset
Terminal Type: Box lug terminals
Cover Material: UV-resistant white Centrex
IP Rating: IP56 (weatherproof when closed)
Mounting Centers: 2-3/8" (60.3mm)
Included Hardware: Mounting screws and gasket

Dual-Voltage System Advantages

The 125/250V capability provides exceptional flexibility for vessels with sophisticated electrical systems requiring different voltage levels. This dual-voltage design accommodates various shore power configurations while maintaining the safety and reliability essential for marine electrical systems.

Voltage Configuration Benefits:

  • 125V Systems: Standard marina power for lighting, electronics, and small appliances
  • 250V Systems: High-power applications including large air conditioning units and water heaters
  • Split-Phase Operation: Enables efficient power distribution for large vessel electrical loads
  • Marina Compatibility: Works with various shore power configurations found at different marinas
  • System Flexibility: Accommodates both single and dual voltage shore power sources

Professional Box Lug Terminal System

The heat-resistant thermoset interior features professional-grade box lug terminals designed for secure connections with large gauge marine wiring. This terminal configuration ensures reliable electrical connections that can handle the high current demands of 50-amp dual-voltage systems.

Box Lug Terminal Benefits:

  • High-Current Capacity: Designed for secure 50-amp connections
  • Large Wire Accommodation: Accepts appropriate gauge wiring for high-amp applications
  • Heat Resistance: Thermoset material withstands electrical heating without degradation
  • Secure Connections: Box lug design prevents wire pullout and ensures long-term reliability
  • Professional Installation: Facilitates proper marine electrician wiring practices

Installation & Marine Applications

Designed for permanent installation on large vessels requiring high-capacity dual-voltage shore power, this inlet is ideal for luxury yachts, large powerboats, and commercial vessels with sophisticated electrical systems that demand both voltage levels.

Professional Applications:

  • Large luxury yachts with comprehensive electrical systems
  • Powerboats requiring high-capacity air conditioning and heating
  • Charter yachts with residential-level electrical demands
  • Commercial vessels requiring both 125V and 250V power
  • Live-aboard boats with dual-voltage appliance requirements
  • Marina service vessels and floating platforms

Advanced Corrosion Resistance

The non-metallic construction completely eliminates galvanic corrosion concerns while providing superior durability in harsh marine environments. The UV-resistant Centrex cover maintains its appearance and structural integrity over years of marine service.

Marine Durability Features:

  • Galvanic Corrosion Immunity: Non-metallic construction eliminates metal corrosion issues
  • UV Stability: White Centrex cover resists sun degradation and discoloration
  • Saltwater Resistance: Materials unaffected by saltwater exposure
  • Temperature Stability: Heat-resistant interior maintains performance in varying conditions
  • Long Service Life: Materials engineered for extended marine exposure

Electrical Safety & Performance

Engineered to meet stringent marine electrical safety standards, this inlet provides reliable dual-voltage power handling with professional-grade terminal connections. The IP56 rating ensures weatherproof performance while maintaining electrical safety in marine environments.

Safety & Performance Standards:

  • 50-amp continuous current rating for demanding applications
  • 125/250V AC rating for flexible voltage requirements
  • Heat-resistant materials for high-current applications
  • Professional box lug terminals for secure connections
  • IP56 weatherproof rating for marine environments
  • ABYC-compliant design for marine electrical systems

Frequently Asked Questions

What is the advantage of dual-voltage capability?

Dual-voltage capability allows the vessel to connect to both 125V and 250V shore power systems, providing flexibility for different marina configurations and enabling efficient power distribution for both low-voltage electronics and high-power appliances like air conditioning and water heaters.

What are box lug terminals and why are they important?

Box lug terminals are professional-grade electrical connections designed for high-current applications. They provide secure connections for large gauge wiring required for 50-amp systems, ensuring reliable electrical performance and preventing wire pullout or loose connections that could cause electrical problems.

How does the heat-resistant interior benefit high-power applications?

The heat-resistant thermoset interior material maintains its structural integrity and electrical properties even when handling high currents that generate heat. This prevents material degradation, maintains electrical safety, and ensures long-term reliability in demanding 50-amp applications.

Can this inlet be used in saltwater marine environments?

Yes, the non-metallic construction completely eliminates galvanic corrosion concerns in saltwater environments. The UV-resistant Centrex cover and thermoset interior are specifically designed to withstand harsh marine conditions including saltwater exposure.

What size vessels typically require dual-voltage shore power?

Large vessels, typically 50 feet and above, often require dual-voltage shore power systems to efficiently handle both standard 125V electronics and high-power 250V appliances like large air conditioning units, electric water heaters, and other residential-grade electrical equipment.

Power your vessel's sophisticated electrical systems with Hubbell's advanced dual-voltage technology. The HBL504NM inlet provides the professional-grade electrical performance and flexibility that large vessel owners depend on for comprehensive shore power capabilities.

Dual-Voltage Shore Power 50A Marine Systems Professional Marine Electrical Large Vessel Power

Stylized non-metallic shore power inlet has UV resistant white Centrex cover which makes unit weatherproof when completely closed. Interior is heat resistant thermoset material and has box lug terminals. Mounting holes are 23/8" (60.3) on centers and match existing mounting patterns. Mounting screws and gasket included. IP56 SUITABILITY.



The 50A 125/250V plastic shore power socket (HBL504NM) provided by Hubbell. What is more interesting and meaningful than boating in open water? This is a great solution for your boating...

Frequently Asked Questions (FAQ) About Hubbell HBL504NM 50A 125/250V Shore Power Inlet

Who is the Hubbell Marine?
How to describe Hubbell HBL504NM 50A 125/250V Shore Power Inlet?
What is the highlights of Hubbell HBL504NM 50A 125/250V Shore Power Inlet?

Who is the Hubbell Marine?

Hubbell Incorporated is an American company that designs, manufactures and sells electrical and electronic products for non-residential and residential construction, industrial and utility applications. Hubbell was founded by Harvey Hubbell as a proprietorship in 1888, and was incorporated in Connecticut in 1905. Rugged, solid, safe, and reliable ? that?s what marine wiring devices from Hubbell Wiring Device-Kellems are designed to be. Every marine product we manufacture can face the harshest of conditions without sacrificing performance. Hubbell is making waves in the marine devices industry with Hubbell Wiring Device-Kellems marine market products. Drawing on over a century of commitment to innovation and quality, Hubbell Wiring Device-Kellems, an industry leader, is dedicated to developing and delivering marine products that improve performance, safety, and functionality. We are dedicated to developing and delivering marine products so that boat builders and boat captains can feel at ease while on the water. Most of our marine devices are made in the United States and are UL listed, CSA approved, and CE certified.

How to describe Hubbell HBL504NM 50A 125/250V Shore Power Inlet?

The 50A 125/250V plastic shore power socket (HBL504NM) provided by Hubbell. What is more interesting and meaningful than boating in open water? This is a great solution for your boating...

What is the highlights of Hubbell HBL504NM 50A 125/250V Shore Power Inlet?



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Hubbell HBL504NM 50A 125/250V Shore Power Inlet Technical Specifications

Type: 

Boat Outfitting | Shore Power

Vendor: 

Hubbell Marine

Weight: 

2.0 lb

Hubbell HBL504NM 50A 125/250V Shore Power Inlet User Reviews

Hubbell HBL504NM 50A 125/250V Shore Power Inlet Shipping & Return

Shipping Weight: 

2.0 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.

Hubbell HBL504NM 50A 125/250V Shore Power Inlet

$114.29 $191.34 ( / )