Hubbell 61CM42 50A 250V 25' Marine Shore Power Cordset - Professional Marine Electrical Connection
Reliable High-Amperage Shore Power Connection
Connect your boat to shore power with confidence using this professional-grade Hubbell marine shore power cordset. Engineered for demanding marine environments, this 25-foot cordset delivers reliable 50A 125/250V power transfer with marine-grade twist-lock connectors and robust construction that meets the highest standards for boat electrical safety.
⚡ 50A Power Capacity
Handles high electrical loads up to 12,500 watts for large vessels and power-hungry appliances
🔒 Twist-Lock Security
Marine-grade twist-lock connectors prevent accidental disconnection in rough conditions
🌊 Marine Environment Ready
PVC jacket and corrosion-resistant construction withstand saltwater and harsh marine conditions
Technical Specifications
Electrical Ratings
Physical Specifications
Marine-Grade Construction Features
Hubbell's marine-specific design elements ensure reliable performance in challenging saltwater environments:
🔧 Bull Ring Strain Relief
Integrated bull ring design provides superior strain relief on terminals, preventing wire fatigue and connection failure from repeated flexing and movement typical in marine applications.
🔗 Copper Crimp Barrel Terminations
Exclusive internal copper crimp barrel terminations instead of screw terminals ensure tighter connections, lower resistance, and longer operational life in corrosive marine environments.
🛡️ Thermoset Contact Carrier
Advanced thermoset contact carrier material provides superior resistance to arcing and heat, ensuring safe operation under high current loads and harsh marine conditions.
⚡ #6 AWG Copper Conductors
Heavy-duty #6 AWG copper conductors minimize voltage drop over the 25-foot length while providing excellent conductivity and corrosion resistance for marine applications.
50A 125/250V Power Configuration
This cordset supports versatile power configurations to meet various marine electrical requirements:
125V Single-Phase Operation
- Voltage: 125V AC
- Current: 50A maximum
- Power: 6,250W maximum
- Applications: Standard marine appliances, lighting, outlets
250V Split-Phase Operation
- Voltage: 250V AC (125V per leg)
- Current: 50A maximum
- Power: 12,500W maximum
- Applications: Large appliances, electric stoves, air conditioning
Wire Configuration (3-Pole 4-Wire Grounding)
- L1 (Hot 1): Black - 125V line 1
- L2 (Hot 2): Red - 125V line 2
- N (Neutral): White - Neutral return
- G (Ground): Green - Equipment grounding conductor
ABYC E-11 Compliance & Safety Standards
This Hubbell cordset meets ABYC E-11 AC Electrical Systems standards for marine installations:
✓ Grounding Plug Requirements
Features twist-lock connectors that lock securely in place as required by ABYC standards, preventing accidental disconnection that could create safety hazards.
✓ Marine-Grade Construction
Built to withstand marine environments with appropriate materials and construction methods that resist corrosion, moisture, and temperature extremes.
✓ Proper Wire Sizing
#6 AWG conductors meet ABYC requirements for 50A circuits, minimizing voltage drop and ensuring safe current-carrying capacity for marine applications.
✓ Equipment Grounding
Includes dedicated equipment grounding conductor (EGC) as required by ABYC E-11 for protection against electrical shock and equipment faults.
⚠️ Important Safety Requirements
When installing this cordset, ensure your vessel's electrical system includes required safety devices:
- Equipment Leakage Circuit Interrupter (ELCI) as required by ABYC E-11.10.2.5.3
- Proper main disconnect breaker rated for 50A service
- Shore power isolation transformer if required by installation
- Appropriate marine inlet rated for 50A 125/250V service
Installation & Usage Guidelines
Pre-Installation Requirements
- Verify shore power pedestal provides 50A 125/250V service
- Ensure vessel inlet is rated for 50A 125/250V
- Confirm electrical panel has appropriate breakers and ELCI protection
- Check that vessel's electrical system meets ABYC E-11 standards
- Verify proper polarity and grounding at both ends
Connection Procedure
- Turn OFF all electrical loads on the vessel
- Turn OFF shore power breaker at pedestal
- Connect cordset to vessel inlet first (twist to lock)
- Connect other end to shore power pedestal (twist to lock)
- Turn ON shore power breaker at pedestal
- Turn ON vessel main breaker gradually
- Test ELCI/GFCI operation before using electrical equipment
Marine Applications & Benefits
⛵ Large Recreational Vessels
Perfect for yachts and motor cruisers requiring high-capacity shore power for air conditioning, electric galley appliances, and extensive electrical systems.
🎣 Sport Fishing Boats
Ideal for offshore fishing vessels with high electrical demands for refrigeration, electronics, and charging systems for extended trips.
🚢 Commercial Marine Applications
Suitable for charter boats, water taxis, and small commercial vessels requiring reliable high-amperage shore connections.
🏢 Marina & Boatyard Use
Essential for marine service facilities providing temporary or permanent high-amperage power connections to customer vessels.
Key Benefits for Marine Users
- High Power Capacity: 12,500W maximum supports large appliances and comprehensive electrical systems
- Dual Voltage Capability: 125V and 250V options provide flexibility for different equipment requirements
- Secure Connection: Twist-lock design prevents dangerous disconnections in rough conditions
- Corrosion Resistance: Marine-grade materials withstand saltwater exposure and marine environments
- Code Compliance: Meets ABYC E-11 standards for safe marine electrical installations
- Professional Grade: Hubbell quality ensures long-term reliability and safety
Maintenance & Care Instructions
Regular Maintenance
- Inspect connectors before each use for damage, corrosion, or overheating
- Check cable jacket for cuts, abrasion, or cracking
- Verify twist-lock mechanism operates smoothly
- Clean connectors with appropriate marine electrical cleaners
- Test continuity and insulation resistance periodically
Storage Recommendations
- Store in dry, ventilated location when not in use
- Avoid kinking or sharp bends that could damage conductors
- Protect connectors with appropriate covers
- Coil loosely to prevent stress on internal wires
- Keep away from sharp objects and chemicals
⚠️ Safety Warnings
- Never use damaged cordsets - replace immediately if any damage is found
- Do not exceed 50A current rating or 12,500W power rating
- Ensure proper polarity connections to prevent equipment damage
- Never modify connectors or internal wiring
- Have electrical systems inspected by qualified marine electricians
Frequently Asked Questions
What is the difference between 50A 125V and 50A 125/250V systems?
Is this cordset compatible with all 50A marine inlets?
Does my vessel need an ELCI with this cordset?
Can I use this cordset in saltwater environments?
What wire gauge is used in this cordset?
How do I properly connect this cordset?
Compatible Accessories & Components
Complete your marine shore power installation with these compatible components:
Marine Shore Power Inlets
50A 125/250V twist-lock inlets with weatherproof enclosures and rear safety covers
ELCI Protection Devices
Equipment Leakage Circuit Interrupters rated for 50A marine applications
Marine Electrical Panels
AC distribution panels with appropriate main breakers and branch circuit protection
Isolation Transformers
Marine isolation transformers for enhanced electrical safety and galvanic corrosion protection
Hubbell Marine Electrical Excellence
Hubbell has been a leader in marine electrical solutions for decades, providing professional-grade components that meet the demanding requirements of marine environments. This cordset represents the quality and reliability that marine professionals depend on.
Professional Installation Recommended: Shore power installations should be performed by qualified marine electricians familiar with ABYC standards and local electrical codes to ensure safety and compliance.



