If you’re a boat owner, you know how important it is to stay safe on the water. One of the potential hazards that you may face when boating is electrical shock. Additionally, stray electrical currents in the water can cause galvanic corrosion, damaging your boat’s electrical equipment. To protect yourself and your vessel from potential damage or injury, you may want to consider using an isolation transformer.

In this article, we will talk about isolation transformers and why they are so important.

What is an Isolation Transformer?

An isolation transformer is a device that separates the electrical power supply of a boat from the shore power supply. It works by creating an electrical barrier between the two systems, preventing stray electrical currents from flowing between them. Doing so provides electrical safety and protection for the boat and its occupants.

Do I Need an Isolation Transformer on My Boat?

While an isolation transformer is not required on all boats, it can be beneficial for several reasons. First and foremost, it can protect you and your passengers from electrical shock. Suppose there is an electrical fault in the shore power supply. In that case, an isolation transformer will prevent that fault from being transmitted to your boat’s electrical system, reducing the risk of electrocution.

In addition, an isolation transformer can protect your boat’s electrical equipment from damage caused by galvanic corrosion. When two dissimilar metals are in contact with each other in the water, they can create an electrical current that can corrode the metal. By separating your boat’s electrical system from the shore power supply, an isolation transformer can prevent this type of corrosion.

Types of Isolation Transformers

There are two main types of isolation transformers: the autotransformer and the isolation transformer.

  • Autotransformers: These are less expensive than isolation transformers and are often used on smaller boats. They connect the boat’s electrical system to the shore power supply through a single wire winding. While autotransformers can provide some level of protection, they are not as effective as isolation transformers in preventing electrical shock and galvanic corrosion.
  • Isolation transformers: On the other hand, these are more expensive but offer greater protection. They use two wire windings to create an electrical barrier between the shore power supply and the boat’s electrical system. This separation provides greater protection against electrical shock and galvanic corrosion.

While an isolation transformer may not be required on all boats, it can provide a valuable layer of protection. It can also offer electrical safety and protection to you, your passengers, and your boat’s electrical equipment. If you’re considering installing an isolation transformer on your boat, it’s essential to choose the right type for your needs and to ensure that it is installed correctly for optimal performance.

Where Can I Find an Isolation Transformer?

At Bridgeport Magnetics Group, Inc., we offer a range of high-quality isolation transformers to meet your boating needs. Contact us today to learn more and find the right one for you.