Waterproof Rocker Switch, ON-OFF-ON SPDT 4 Pin 12V/24V | Baywatt R0 Series R0-N05

The Baywatt R0 Series waterproof rocker switches are designed for reliable DC control in demanding environments. Built for 12V and 24V systems, they are suitable for marine dashboards, 4x4 vehicles, RV electrical systems, agricultural machinery and industrial control panels.

If your installation is exposed to saltwater, humidity, vibration or UV, a standard rocker switch is often not enough. The R0 Series combines sealed construction, UV-resistant materials and stable current handling for dependable switching in environments where conventional switches wear out faster.

This page focuses on the R0-N05, the 4-pin ON-OFF-ON SPDT version of the range. This model provides a maintained ON position on both sides with a center OFF position. It features a dual green LED for clear visual feedback and is especially suitable for manual bilge pump control, actuator up/down functions, relay changeover, trim tab selection, valve control and other two-direction switching applications.

Same quality standard as Baywatt RPS rocker switches

The R0-N05 shares the same general build quality, rocker style and marine-oriented construction standard as the rocker switches used in Baywatt RPS marine panels. Thanks to its 4-pin layout, SPDT switching circuit and dual LED design, it supports more advanced switching logic than a basic ON/OFF rocker while keeping the same robust feel and clean panel integration.

What is an ON-OFF-ON SPDT rocker switch?

An ON-OFF-ON SPDT rocker switch provides two maintained ON positions separated by a center OFF position. On the R0-N05, the switching circuit is SPDT, allowing one common input to be directed to one of two outputs depending on rocker position. This makes it useful when a circuit must select between two distinct functions, directions or operating modes from one switch.

Well suited for bilge pump and changeover control

The R0-N05 is especially relevant for installations that require two maintained commands with a neutral OFF position in the middle. In marine use, it can suit certain bilge pump control logics such as manual / OFF / automatic, depending on the wiring scheme. It is also well suited to actuator up/down, trim tab selection, relay changeover and other applications where one switch must select between two maintained outputs.

Technical highlights

• Voltage: 12V / 24V DC
• Current rating: 20A @ 12V DC / 10A @ 24V DC
• Circuit: SPDT
• Configuration: ON-OFF-ON
• Connection: 4 pin
• Ingress protection: IP66
• Housing: ABS + Nylon
• Terminal type: 6.3 mm spade connectors
• Seal: Pre-mounted gasket
• LED: Dual green LED

Built for marine and heavy-duty use

The IP66 sealing helps protect against dust and water spray. The reinforced ABS and Nylon body resists long-term exposure to UV, moisture and mechanical stress. The internal contact system is designed for stable operation in vibrating environments such as boats, off-road vehicles and utility equipment.

Why choose an ON-OFF-ON SPDT switch?

A standard ON/OFF rocker only provides one maintained function. The R0-N05 adds more flexibility with its center OFF position, maintained ON on both sides and SPDT switching logic. This makes it useful when one switch must manage a common input and two selectable outputs, or when you want to choose between two operating modes from one compact rocker switch.

Typical applications

• Bilge pump control
• Manual / OFF / automatic switching logic
• Trim tab control
• Actuator up/down control
• Relay changeover control
• Valve selection
• Accessory mode selection
• Custom dashboard panels

Switching options in the R0 Series

Not all rocker switches operate in the same way. The R0 Series is available in several configurations to match different control requirements:

• R0-N01: ON / OFF (3 pin) – single LED
• R0-N02: (ON) / OFF (3 pin) – single LED
• R0-N05: ON / OFF / ON (4 pin) – dual LED
• R0-N06: (ON) / OFF / ON (4 pin) – dual LED

The R0-N05 is the right choice when you need a waterproof SPDT rocker switch with two maintained ON positions and a center OFF position.

FAQ

What does ON-OFF-ON mean?
It means the switch has two maintained ON positions, one on each side, with a center OFF position between them.

Is the R0-N05 an SPDT switch?
Yes. The R0-N05 uses an SPDT circuit, allowing one common input to be switched to one of two outputs depending on rocker position.

Why does it have 4 pins if it is SPDT?
The switch uses 3 terminals for the SPDT switching function and 1 additional terminal for the LED circuit, which is why the product has 4 physical pins.

Is it suitable for bilge pump control?
Yes. In many wiring schemes, it can be used for manual / OFF / automatic or similar two-mode selection logic, depending on how the circuit is designed.

What is the difference between R0-N05 and R0-N06?
The R0-N05 is a maintained ON-OFF-ON switch. The R0-N06 has a momentary ON position on one side, making it better suited to test, override or short command functions.

Does the LED stay illuminated permanently?
No. The dual LED provides visual feedback depending on the active position and the way the switch is wired in your circuit.

What terminals are required?
Standard 6.3 mm female spade connectors are used.