Boat Rocker Switch Wiring Diagram: A Comprehensive Guide

Are you having trouble with your boat’s rocker switch wiring? Worry no more, as we have got you covered with this comprehensive guide on boat rocker switch wiring diagram. In this article, we will discuss everything you need to know about wiring your boat’s rocker switch.

What is a Boat Rocker Switch?

Before diving into the wiring diagram, let’s first understand what a boat rocker switch is. A boat rocker switch is a type of switch that is commonly used in boats to control various electrical components such as lights, pumps, and navigation systems. It is called a rocker switch because it has a small lever that rocks back and forth to turn on or off.

Common Types of Boat Rocker Switches

There are two common types of boat rocker switches: single pole, single throw (SPST) and double pole, double throw (DPDT). The SPST switch has only one path for electricity to flow through, while the DPDT switch has two paths. The DPDT switch is typically used when you need to control two different electrical components with one switch.

Why is Wiring a Boat Rocker Switch Important?

Wiring a boat rocker switch correctly is important because it ensures that the electrical components are working as they should be. Incorrect wiring can lead to short circuits, which can cause damage to your boat’s electrical system or even start a fire.

How to Wire a Boat Rocker Switch

Wiring a boat rocker switch can seem daunting, but it is actually quite simple. Follow the steps below to wire your boat’s rocker switch correctly:

Step 1: Gather the Required Materials

To wire your boat’s rocker switch, you will need the following materials:

  • Rocker switch
  • Wiring diagram
  • Wire stripper
  • Electrical tape
  • 12-gauge wire
  • Fuse and fuse holder

Step 2: Disconnect the Battery

Before starting the wiring process, it is essential to disconnect your boat’s battery. This ensures that no electricity is flowing through the wires and reduces the risk of electrocution.

Step 3: Determine the Wiring Configuration

Refer to your boat’s wiring diagram to determine the correct wiring configuration for your rocker switch. The wiring configuration may vary depending on the type of switch you are using and the electrical components you want to control.

Step 4: Cut the Wire

Cut the 12-gauge wire according to the length required by the wiring diagram.

Step 5: Strip the Wire

Using a wire stripper, strip about 1/4″ of insulation from each end of the wire.

Step 6: Connect the Wires to the Rocker Switch

Connect the wires to the rocker switch according to the wiring diagram. The most common wiring configuration is to connect the positive wire to one of the switch’s terminals and the negative wire to the other terminal.

Step 7: Install the Fuse

Install a fuse in a fuse holder using the wiring diagram as a guide. This helps protect your boat’s electrical system from short circuits.

Step 8: Test the Rocker Switch

After completing the wiring process, reconnect the battery and test the rocker switch to ensure that it is working correctly.


What is the maximum amperage a rocker switch can handle?

The maximum amperage that a rocker switch can handle varies depending on the switch’s rating. Typically, rocker switches can handle up to 20 amps.

Can I wire multiple electrical components to one rocker switch?

Yes, you can wire multiple electrical components to one rocker switch. However, it will depend on the switch’s rating and the electrical components’ amperage.

Can a boat rocker switch be used for both AC and DC electrical systems?

No, a boat rocker switch cannot be used for both AC and DC electrical systems. They are designed to work with either AC or DC electrical systems, and using them interchangeably can damage your boat’s electrical system.


Wiring your boat’s rocker switch correctly is crucial for ensuring that the electrical components are functioning correctly and preventing any damage to your boat’s electrical system. By following the steps outlined in this article, you can wire your boat’s rocker switch with ease. Remember to always disconnect your boat’s battery before starting any wiring process and refer to the wiring diagram to determine the correct wiring configuration.