
There are several types of shore power cords, each designed for specific uses. The most common types are 30-amp and 50-amp cords.
A 30-amp cord is typically used for smaller boats and RVs that don't require a lot of power. It's also a good option for temporary power needs.
For larger boats and RVs that require more power, a 50-amp cord is the better choice. This type of cord can handle higher power demands and is often used for extended periods of time.
In addition to the amp rating, shore power cords also come in different lengths and types of connectors. It's essential to choose the right cord for your specific needs to ensure safe and reliable power.
Types of Shore Power Cords
There are several types of shore power cords, each designed for specific applications.
The most common type is the 30-amp shore power cord, which is suitable for most small to medium-sized boats.
A 50-amp shore power cord is designed for larger boats and can handle more power, but it's also more expensive.
The 30-amp cord is typically used for boats with smaller electrical systems, while the 50-amp cord is used for boats with more complex systems.
Some shore power cords also come with a built-in circuit breaker, which provides an added layer of safety.
These circuit breakers automatically shut off the power supply in case of an overload, preventing damage to the boat's electrical system.
50 Amp
50 Amp power inlets are designed for challenging environments and come in three-wire 125V or four-wire 125/250V models, with an IP56 rating for protection against dust and water.
These power inlets are made with corrosion-resistant components, ensuring they can withstand harsh conditions.
Marinco 50A male plugs and female connectors are available in 125V and 125/250V models, equipped with dust seals for contaminant-free operation.
The 50 Amp adapters offer flexibility with straight adapters for dry locations, pigtail adapters for wet environments, and "Y" adapters for dual connections.
Marinco 50A receptacles have a corrosion-resistant reinforced nylon construction, available in a 125V 2-pole, 3-wire model and a 125/250V 3-pole, 4-wire model.
Marine-grade cords from Marinco feature a line-up ridge for quick blade alignment and a watertight molded plug and connector, available in 125V, 125/250V, and plug-end only cordsets.
100 Amp
The 100 AMP shore power cord is a reliable choice for many applications. It features spring-loaded covers that generate an IP67 watertight closure when tightened.
One of the standout features of Marinco 100A cordsets is their oil, water, and UV-resistant cable. This makes them perfect for use in harsh marine environments.
The 100A range is available in two versions: a 125/250V, 3-Pole, 4-Wire model and a 3ØY 120V/208V, 4-Pole, 5-Wire model.
Plugs & Connectors
Marinco marine-grade plugs and connectors are designed with superior strain relief to withstand the rigors of marine environments.
They feature effective dust seals to prevent contaminants from entering the connection, ensuring reliable operation.
A durable and dependable design makes Marinco plugs and connectors a trusted choice for shore power connections.
Their corrosion-resistant materials and marine-grade components ensure they can withstand exposure to saltwater and harsh weather conditions.
Marinco 50A male plugs and female connectors are available in 125V and 125/250V models, equipped with dust seals for contaminant-free operation.
Marinco 50A receptacles are available in a 125V 2-pole, 3-wire model and a 125/250V 3-pole, 4-wire model, featuring a corrosion-resistant reinforced nylon construction.
Marinco 100A cordsets are available in two versions: a 125/250V, 3-Pole, 4-Wire model and a 3ØY 120V/208V, 4-Pole, 5-Wire model, equipped with oil, water, and UV-resistant cable.
Their gasketed locking rings provide a secure connection, while standard connector bodies ensure compatibility with various shore power sources.
Components and Accessories
Marinco solutions boast marine-grade components, ensuring the quality and durability of your shore power cord.
These components are designed to withstand the harsh marine environment, providing a reliable connection to shore power sources.
Marinco's corrosion-resistant materials protect against rust and corrosion, extending the lifespan of your shore power cord.
Pigtail Adapter 15A to 50A
The Pigtail Adapter 15A to 50A is a handy device that allows you to increase the power output of your electrical system.
Onboard AC power is subject to aging, which can lead to unanticipated failures, especially with constant changing loads.
Many electrical components, such as capacitors, have a limited working life and will fail, rendering the whole component inoperative, no matter how well they are cared for.
This adapter can help to upgrade your electrical system, but it's essential to consider the limitations of onboard AC power and the lifespan of electrical components.
Connectors and Cables
Marinco connectors and cables are built to last, featuring marine-grade components that can withstand the harsh marine environment.
Their plugs and connectors boast superior strain relief, which helps prevent damage from flexing or bending.
Effective dust seals keep moisture out, ensuring a secure connection every time.
Marinco's durable and dependable designs guarantee a reliable connection to shore power sources.
Their feature-rich designs make it easy to connect to shore power sources, no matter the situation.
Understanding Shore Power Cords
To connect your camper to a campground's electrical hookups, you'll need a proper charger or converter that matches shore power specifications.
Shore power cords are designed to handle specific voltage and amperage levels, so ensure the correct alignment to prevent damage.
A surge protector is a must-have to prevent potential damage from electrical surges that can occur when connecting to shore power.
You'll need to check if the campground has the necessary hookups before relying on shore power, as not all campsites may have them.
Maintenance and Repair
Maintenance and repair are crucial aspects of shore power cord ownership. You can often fix a damaged cord instead of replacing it entirely, which is more cost-effective and environmentally friendly.
If your shore power cord's male connection has melted, like we experienced on a rainy summer day, you'll need to replace the damaged ends. We had to repair our power cord after finding the male connection had melted at a dock in Silva Bay.
To repair the cord, you'll need to purchase replacement connections, such as a 30 amp Marinco female connector (305CRCN) and a 30 amp Marinco male connector (305CRPN). We got these exact parts to replace the damaged ends.
The cord itself was fine, so we re-used both the old wire and the old sealing ring. We cut the old heads off with a pair of shears and then passed the weatherproof covers over the wire, adding a bit of dish soap to help them along.
Here's a list of the parts you'll need to repair your shore power cord:
- 1x 30 amp Marinco female connector (305CRCN)
- 1x 30 amp Marinco female connector weatherproof cover (305CRCN)
- 1x 30 amp Marinco male connector (305CRPN)
- 1x 30 amp Marinco male connector weatherproof cover (305CRPN)
To assemble the new connections, you'll need to strip the yellow outer sleeve of the power cord wire to reveal the three smaller wires inside. We stripped 1 1/2" of the sleeve and 1/4" of the ends of the three wires, then inserted them into their corresponding slots.
Frequently Asked Questions
What size cable for shore power?
For shore power, use a cable with an inner core size of at least 2.5mm² for 16A connectors or 6mm² for 32A connectors. Check the IET Wiring Regulations (BS 7671) for specific requirements and more information.
What is the standard for shore power cable?
The governing standard for shore power cable operability is the IEC/IEEE 80005 series, specifically IEC/IEEE 80005-1 for high voltage and 80005-3 for low voltage systems.
Sources
- https://marinco.navico.com/marine/shore-power-solutions/
- https://www.victronenergy.com/cables/shore-power-cable
- https://www.go2marine.com/shop-all-categories/electrical/shorepower/shore-power-cords-and-pigtail-adapters
- https://100r.co/site/shore_power_cord_repair.html
- https://www.ecoflow.com/us/blog/how-to-charge-camper-battery
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