Choosing the right shore power cord ensures reliable power, weatherproof connections, and safe docking for boats, RVs, and campers. The options below focus on 30-amp and higher configurations, built for marine environments with locking plugs, durable insulation, and flexible length choices. Use this guide to compare common lengths, plug styles, and overall build quality before purchasing.
| Product | Brand | Length | Amperage | Notes |
|---|---|---|---|---|
| 25ft 30Amp 125V RV Power Wire Cord Marine Shore Boat L5-30 Yellow | Fekuar | 25 ft | 30 Amps | Locking L5-30P to L5-30R, marine-grade, yellow |
| Conntek 17101-025RE Marine Shore Power 30 Amp Cordset | Conntek | 25 ft | 30 Amps | With light indicator, White |
| Conntek 17105-025RE Marine Shore Power 30 Amp Cordset | Conntek | 25 ft | 30 Amps | With light indicator, Yellow |
| SFEG Halex 31212 Marine Shore Power Extension Cord | SFEG | 12 ft | 30 Amps | Fully molded, includes seal collar |
| Kanayu 25Ft 30Amp RV Power Extension Cord | Kanayu | 25 ft | 30 Amps | 90° grip handle, locking L5-30P/R, ETL listed |
Fekuar 25ft 30A Marine Shore Power Cord

Fekuar’s 25-foot shore power cord provides a robust 30 Amp, 125V capability with a locking NEMA L5-30P to L5-30R configuration. The heavy-duty, marine-grade 10 AWG cable offers flexibility for dock applications, while the yellow insulation enhances visibility on deck. The molded ends include watertight seals for durability in wet environments. Ideal for RVs, motorhomes, and boats needing a secure, weather-resistant connection.
Conntek 17101-025RE 30A Shore Power Cordset

Conntek’s 25-foot white shore power cordset delivers 30 Amp service with an indicator light, aiding quick status checks at the trailer or boat inlet. The NEMA locking plug and receptacle design improve security against accidental disconnections. This configuration suits dockside deployment where visibility and reliability are priorities in Marine Shore Power systems.
Conntek 17105-025RE 30A Shore Power Cordset

This yellow version from Conntek offers similar 25-foot, 30 Amp performance with a locking L5-30P to L5-30R setup. The bright yellow insulation improves visibility in busy marina environments, while the locking features mitigate accidental disconnection. Suitable for RV PARK hookups, campgrounds, and boat dock installations requiring consistent power delivery.
SFEG Halex 12 Ft Marine Shore Power Extension Cord

Although shorter at 12 feet, SFEG Halex offers a durable 30 Amp, 125 Volt extension cord with molded ends and a seal collar. The compact length is useful for tight docking spaces or quick extensions from a parked vehicle to a boat inlet, while maintaining watertight performance and ease of storage.
Parkworld 50A Marine Shore Power Extension Cord

Parkworld provides a heavier 50 Amp option with a 15-foot length, suitable for higher-demand shore power setups. The cord features a SS2-50 locking plug and copper conductors, handling up to 125V/250V configurations. This is a robust choice for larger RVs or boats needing more amperage for sustained operation, including air conditioning and high-wan power loads.
Kanayu 25Ft 30Amp RV Power Extension Cord

Kanayu’s 25-foot cord delivers a locking L5-30P to L5-30R arrangement with a 90-degree grip handle on the female end. This design helps reduce strain and makes plugging in easier in tight spaces. The 10 AWG conductors and ETL listing indicate a focus on safety and reliability for marine and RV shore power needs, with weatherproof sealing to protect against moisture exposure.
Buying Guide
Length and amperage: Choose the length that fits your dock or campsite layout and the power requirement of your equipment. For most RVs and mid-size boats, 25-foot, 30 Amp cords are standard, while larger rigs may benefit from 50 Amp options.
Plug style and locking mechanism: Locking L5-30P/R connectors reduce the risk of accidental disconnections in windy conditions or rough seas. Look for molded, watertight ends and corrosion-resistant materials for longevity.
Cable construction: 10 AWG or heavier conductors perform better under load and in cooler operation. Marine-grade insulation and outer jackets should resist UV exposure and moisture for outdoor use.
Special features: An indicator light can help verify power presence, while a 90-degree elbow or grip handle improves ergonomics when plugging in, especially in tight spaces on boats or RVs.
Safety certifications: ETL or UL listings provide assurance of compliance with electrical safety standards for marine and RV applications. Always inspect cords for cracks, exposed conductors, or damaged seals before use.