At New Wire Marine, we take pride in our expertise in building custom dash panels, switch panels, and marine electrical systems for recreational boats.

In this blog post, we’ll shed light on an essential component of marine electrical systems: Switches. Specifically, we’ll explore the difference between double pole and double throw switches and their significance in controlling various functions on your boat. Let’s jump in!

Exploring Double Pole Switches

Imagine you’re at the helm, ready to navigate the open waters. A double pole switch is like having two captains—a reliable companion you can count on.

These switches feature two sets of contacts, allowing them to control two separate circuits simultaneously.

By utilizing a double pole switch, you can operate two different electrical components with a single switch. This versatility is particularly useful when dealing with higher current loads, providing increased safety and reliability.

Double Pole Blog Image

Understanding Double Throw Switches

Now let’s really dive into double throw switches!

Think of them as the switchboard operator, directing the flow of electricity between two separate paths.

Unlike double pole switches, double throw switches connect a common terminal to one of two separate terminals.

This configuration enables you to switch between two circuits, allowing you to redirect power as needed. Whether you want to toggle between different lighting setups or activate backup systems, double throw switches offer the versatility you require.

Comparing Double Pole and Double Throw Switches

To recap, the primary difference between double pole and double throw switches lies in their functionality.

Double pole switches excel in controlling two circuits simultaneously, while double throw switches specialize in switching between two separate circuits.

When choosing the right switch for your marine electrical system, consider factors such as your specific electrical requirements and the desired functionality for your boat’s setup.

Practical Examples and Applications

Let’s bring these concepts to life with practical examples!

Double pole switches are commonly found in applications where you want to control multiple electrical components with one switch, such as cabin lights and navigation lights.

On the other hand, double throw switches find utility in scenarios where you need to toggle between different circuits, such as selecting between shore power and generator power sources.

It’s important to note that a switch can be both double pole AND double throw. 

Understanding the distinction between double pole and double throw switches is crucial for ensuring the efficient and safe operation of your boat’s electrical system.

At New Wire Marine, our team of experts can guide you in selecting the most suitable switch for your specific needs. Let us help you navigate the waters with confidence! Explore more of what we have to offer below: