WeatherDeck® DPDT lever switch - ON-OFF-ON

This DPDT (Double Pole Double Throw) switch is designed to control two independent circuits simultaneously or to toggle a single circuit between two distinct power states or sources. It has three positions: ON (position 1), OFF (center position), and ON (position 2), allowing flexible management of electrical equipment on board.

DPDT stands for Double Pole Double Throw. This means the switch can control two circuits (double pole) and each circuit can be connected to one of two output positions (double throw), in addition to a central off position. This configuration allows for complex and versatile switching.

The WeatherDeck® rating means the switch is specifically designed by Blue Sea Systems to withstand harsh marine environments. This includes protection against saltwater, spray, UV, and vibrations, ensuring reliable performance even when exposed to the elements.

This DPDT switch has three distinct positions:

An ON position (activated in one direction)A central OFF position (deactivated)Another ON position (activated in the opposite direction)This allows you to select between two functions or power sources, or to activate/deactivate a system.

This lever switch is of the maintained type. This means the lever stays in the selected position (ON or OFF) until manually moved to another position. It does not automatically return to the center or OFF position.

Yes, this WeatherDeck® series switch has an IP67-rated front panel when correctly installed. This means it is protected against dust and temporary immersion in water, making it perfectly suitable for exposed marine environments.

As a DPDT (Double Pole Double Throw) switch, it has six connection terminals. These terminals are typically "spade" (faston) type for easy and secure wiring.

A DPDT ON-OFF-ON switch is highly versatile. It can be used for:

Switching between two power sources for the same equipment.Reversing the polarity of a motor (for forward/backward movement).Controlling two separate functions simultaneously (one per ON position).Selecting between two operating modes for a system.

To install this switch, a rectangular cutout in the panel is required with the following dimensions:

Length: 12.70 mm (0.500 in)Width: 1.57 mm (0.062 in)These dimensions are critical for a proper fit and reliable sealing.

The recommended maximum panel thickness for mounting is 0.97 mm (0.038 in). Adhering to this thickness ensures secure installation and proper integration of the switch.

The switch is designed for flush mounting. After cutting the panel to the specified dimensions (12.70 mm x 1.57 mm), the switch is inserted and typically secured by pressure or an integrated clip system, ensuring a flush and secure installation.

Yes, a cutting template is usually provided or available in the technical documentation for the Blue Sea Systems 4155-BSS switch. This template specifies the exact dimensions (12.70 mm in length and 1.57 mm in width) for panel cutting, making installation easier.

For installation, you will need basic tools for panel cutting, such as a drill and a file or a rotary tool to create the mounting slot. Crimping pliers for "spade" terminals and a screwdriver for electrical connections are also required. No specialized tools beyond these are typically needed.

Yes, this switch is fully compatible with marine electrical systems operating on 12V DC and 24V DC. Its design and electrical specifications allow it to handle loads effectively in both common onboard voltage configurations.

No, the WeatherDeck® DPDT lever switch is specifically designed and certified for direct current (DC) systems only. Using it to control equipment on an alternating current (AC) circuit is not recommended and unsafe.

This switch is ideal for a wide range of marine applications requiring reliable, weather-resistant switching, such as:

Bilge pump control (automatic/manual)Changing motor direction (e.g., for winches, windlasses, or trim tabs)Selecting lighting sources or auxiliary equipmentControlling navigation or communication systems requiring ON/OFF/ON modes.

Yes, thanks to its DPDT (Double Pole Double Throw) ON-OFF-ON configuration, this switch is perfectly suited for reversing the polarity of a DC motor. This allows control of the motor's rotation direction, a common function for winches, windlasses, reversible pumps, or electric actuators.

Yes, as a Blue Sea Systems product, this switch is designed to integrate seamlessly with other electrical components from the brand, such as distribution panels, bus bars, and fuse holders. It is part of a comprehensive range of marine electrical solutions designed for reliability and compatibility.