Hubbell 61CM52 50A 250V 50' Marine Shore Power Cordset - Extended Reach Professional Power Connection
Maximum Reach for Challenging Docking Situations
Bridge the gap between distant shore power pedestals and your vessel with this premium 50-foot marine shore power cordset. Engineered with STOW-type marine cable and featuring IP56 waterproof protection on the boat-side connector, this extended-length cordset provides reliable 50A 125/250V power transfer for larger vessels and challenging marina layouts where standard 25-foot cords fall short.
? 50-Foot Extended Reach
Twice the length of standard cordsets for challenging slip configurations and distant pedestals
? IP56 Waterproof Protection
Boat-side connector resists high-pressure water jets and marine weather conditions
? Factory Pre-Wired Design
Molded-on connectors with metallic threaded sealing rings for watertight connections
Advanced Marine Cable Specifications
Electrical Ratings
Construction & Protection
STOW Marine Cable Technology
This cordset features Type STOW marine cable, specifically engineered for the demanding marine environment:
? Advanced Insulation System
EPDM Insulation: Ethylene Propylene Diene Monomer provides superior resistance to ozone, weather, and chemical exposure common in marine applications.
?️ Marine-Grade Jacket
CPE Construction: Chlorinated Polyethylene jacket offers exceptional toughness against abrasion, saltwater, and UV exposure.
⚡ Optimal Conductivity
#6 AWG Copper: Heavy-duty copper conductors minimize voltage drop over the 50-foot length while maintaining full amperage capacity.
? Marine Environment Rated
Harsh Condition Performance: STOW cable is specifically designed to withstand the toughest marine elements including temperature extremes and moisture exposure.
IP56 Waterproof Protection System
The boat-side connector features IP56 ingress protection rating, providing robust defense against marine environmental hazards:
IP5X - Dust Protection
- Limited dust ingress permitted
- Prevents harmful dust accumulation
- Maintains electrical integrity in dusty conditions
- Suitable for marina and boatyard environments
IPX6 - Water Protection
- Protects against high-pressure water jets
- Withstands 100 liters per minute at 100 kPa pressure
- Resistant to heavy rain and spray conditions
- Tested at 3-meter distance for 3+ minutes
Advanced Sealing Technology
The metallic threaded sealing ring creates a watertight interface between the cordset connector and vessel inlet, preventing water ingress that could cause electrical faults or safety hazards.
Extended Reach Applications
The 50-foot length provides solutions for challenging docking situations where standard cordsets are inadequate:
?️ Wide Slip Configurations
Perfect for wide slips where power pedestals are located at significant distances from the vessel's shore power inlet, common in mega-yacht and commercial vessel facilities.
⛵ Mediterranean Mooring
Ideal for stern-to or Mediterranean-style mooring where vessels anchor out and tie stern lines to shore, requiring extended reach to shoreside power connections.
? Marina Service Areas
Essential for service docks and boatyards where vessels may be positioned at various distances from power sources during maintenance or repairs.
? Multi-Hull Vessels
Accommodates catamarans and trimarans with wide beams where the shore power inlet may be located far from the dock edge due to vessel configuration.
Professional-Grade Construction Features
? Metallic Threaded Sealing Ring
Creates a positive, watertight seal when connected to the vessel inlet, preventing water ingress and electrical faults. The threaded design ensures consistent, reliable connections.
? Factory Pre-Wired Assembly
Completely pre-wired with molded-on devices eliminates field wiring errors and ensures consistent, professional connections. Factory assembly guarantees optimal electrical integrity.
? Bull Ring Strain Relief
Integrated bull ring design provides superior strain relief on terminals, preventing conductor fatigue and maintaining electrical connections under repeated flexing.
? Copper Crimp Barrel Terminations
Professional-grade copper crimp barrels provide more reliable connections than screw terminals, with lower resistance and greater longevity in marine environments.
? Molded Flex Control
Molded-in flex feature controls cord entry angle and prevents water ingress at the critical junction between cable and connector.
✨ Corrosion-Resistant Materials
Nickel-plated brass contact blades and shell provide superior corrosion resistance and positive electrical connections in saltwater environments.
Installation & Usage Considerations
Cable Management
The 50-foot length requires proper cable management to prevent damage and ensure safety:
- Use cable organizers or hooks to keep excess cable off the dock
- Avoid sharp bends or kinks that could damage internal conductors
- Ensure proper strain relief at both connections
- Route cable to avoid foot traffic and equipment areas
- Consider using cable protectors in high-traffic areas
Voltage Drop Considerations
Extended length requires attention to voltage drop characteristics:
- #6 AWG conductors minimize voltage drop over 50-foot length
- Monitor voltage at vessel's electrical panel during high load conditions
- Consider load balancing for 125/250V split-phase applications
- Verify proper voltage levels for sensitive electronic equipment
⚠️ Extended Length Safety Requirements
ABYC Compliance
Ensure extended length installations meet ABYC E-11 requirements for voltage drop and circuit protection.
ELCI Protection
Equipment Leakage Circuit Interrupter protection is critical for longer cordsets to detect ground faults.
Regular Inspection
Increased length means more exposure - inspect entire length regularly for damage or wear.
Power Performance & Capacity
Dual Voltage Capabilities
Typical Load Capacity Examples
Large Yacht Applications
- Multiple air conditioning units (up to 10+ tons)
- Electric galley equipment (stoves, ovens, microwaves)
- Water heating systems
- Battery charging systems for house banks
- Extensive lighting and electronics
Commercial Marine Applications
- Charter vessel guest amenities
- Commercial fishing vessel equipment
- Workboat power tools and equipment
- Marina service vessel operations
Maintenance & Longevity
Extended Length Maintenance
Longer cordsets require additional attention to maintain peak performance:
- Full Length Inspection: Check entire 50-foot length for cuts, abrasion, or damage
- Connector Maintenance: Clean and inspect both connectors after each use
- Cable Storage: Coil properly to prevent kinking and conductor damage
- Weather Protection: Store in dry location to prevent moisture absorption
- Electrical Testing: Periodically test continuity and insulation resistance
Marine Environment Care
- Saltwater Rinse: Rinse connectors with fresh water after saltwater exposure
- Corrosion Prevention: Apply appropriate marine electrical contact cleaners
- UV Protection: Store away from direct sunlight when not in use
- Temperature Considerations: Allow cable to reach ambient temperature before use in extreme conditions
Frequently Asked Questions
Why choose a 50-foot cordset over a standard 25-foot version?
Does the extended length affect power delivery?
What is Type STOW cable and why is it used?
Is IP56 rating sufficient for marine use?
How should I manage and store this 50-foot cordset?
Can I use this cordset for both 125V and 250V applications?
Extended Length Advantages
✅ Eliminates Extension Cords
No need for potentially dangerous extension cord connections that can create water ingress points and increase resistance
✅ Single Connection Point
Direct vessel-to-shore connection reduces potential failure points and maintains electrical integrity
✅ Professional Installation
Factory-assembled construction ensures consistent quality and eliminates field wiring errors
✅ Flexible Positioning
Extended reach allows optimal vessel positioning without being constrained by power pedestal location
