Hubbell HBL31CM29 Shore Power Adapter - 15A/20A Female to 30A Male Marine Connector
Essential marine shore power adapter for connecting standard household appliances and equipment to 30-amp dock pedestals. The Hubbell HBL31CM29 enables safe connection of 15-amp or 20-amp straight blade plugs to 30-amp twist-lock receptacles, making it indispensable for boaters needing temporary power solutions at marinas.
Engineered with Hubbell's marine-grade construction standards, this molded adapter provides reliable electrical connectivity while maintaining proper safety protocols for marine shore power applications. The compact white design integrates seamlessly with existing shore power systems and dock configurations.
Key Features & Marine Applications
- Versatile Power Compatibility: Connects 15A or 20A straight blade plugs to 30A twist-lock receptacles for flexible power access
- Marine-Grade Construction: Durable white molded nylon housing designed to withstand marine environmental conditions
- Safety-First Design: Proper grounding with 2-pole, 3-wire configuration ensures safe electrical connections
- Twist-Lock Security: L5-30P male end provides secure connection to dock pedestals that won't accidentally disconnect
- Compact Profile: Space-efficient design (4.5" x 3.5" x 2.5") won't interfere with adjacent dock connections
- IP20 Protection Rating: Suitable for protected marine electrical applications
- Professional Grade: Hubbell quality construction trusted by marine professionals worldwide
Technical Specifications
Applications & Use Cases
The HBL31CM29 adapter is essential for marine applications where standard household or light commercial equipment needs to connect to 30-amp dock power systems. This adapter bridges the gap between different power configurations commonly found in marine environments.
Common Applications:
- Connecting power tools and work lights at boat yards
- Temporary power for marine maintenance equipment
- Battery chargers and inverters with standard plugs
- Portable air compressors and vacuum systems
- Emergency power connections for essential equipment
- Workshop and service applications at marinas
Safety Guidelines & Important Considerations
Critical Safety Information: This adapter must be used according to proper electrical safety practices to prevent overheating and electrical hazards.
Essential Safety Guidelines:
- Current Limiting: Never exceed 15-amp draw when using this adapter - the connected equipment determines the safe current limit
- Dry Locations Only: IP20 rating requires use in protected, non-wet locations only
- No GFCI Protection: This adapter does not provide GFCI protection - ensure proper GFCI protection at the source
- Proper Grounding: Verify all connections maintain proper grounding for safety
- Regular Inspection: Check adapter housing and connections regularly for signs of wear or damage
- Temporary Use: Not intended for permanent installation - use for temporary power connections only
Compatibility & Standards
This adapter meets NEMA configuration standards and is compatible with standard marine shore power systems throughout North America. The twist-lock male end connects securely to 30-amp dock pedestals, while the female end accepts standard 15-amp and 20-amp plugs commonly found on marine equipment.
Standards & Certifications:
- NEMA 5-20R female configuration
- NEMA L5-30P male configuration
- UL Listed construction standards
- Marine-grade materials and construction
- 2-pole, 3-wire grounding for safety
