Sea-Dog Replacement Rocker Switch 420443-1, SPDT On/Off/On Panel Switch

The Sea-Dog 420443-1 is a genuine replacement rocker switch built for marine switch panels, including the Sea-Dog Splash Guard Bilge Pump Panel. This SPDT (single-pole, double-throw) rocker switch operates in an on/off/on configuration, giving you a true three-way switching action for applications like manual and automatic bilge pump control. The switch connects using a quick connect terminal design, making panel wiring and replacement straightforward without soldering.

Constructed of durable plastic, this rocker switch is built to withstand the vibration, moisture, and handling common in a marine electrical panel environment. It carries a 2-way circuit type with normally open contacts and is designed for panel mount installation, dropping into the same cutout as the original factory switch. Insulation resistance is rated at 100 Megaohms, supporting reliable electrical isolation in a boat's electrical system.

This is a compact component part, measuring 4.94 x 1.88 x 1.25 inches, intended as a direct replacement rocker switch rather than a complete panel. It is the correct replacement switch for Sea-Dog panels that call for part number 420443-1, letting you restore original switching function without replacing the entire panel assembly.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 420443-1
• Switch Type: Rocker, SPDT
• Circuit Type: 2-way
• Contact Type: Normally Open
• Connector Type: Quick Connect
• Mounting Type: Panel Mount
• Material: Plastic
• Item Dimensions: 4.94 x 1.88 x 1.25 inches
• Insulation Resistance: 100 Megaohms
• Weight: 0.02 pounds
• UPC: 035514420525

Frequently Asked Questions

What is part number 420443-1? Part number 420443-1 is a Sea-Dog replacement rocker switch with an SPDT on/off/on configuration, designed to replace the rocker switch used in Sea-Dog switch panels such as the Splash Guard Bilge Pump Panel.

Is this an SPDT or SPST switch? This Sea-Dog rocker switch, part number 420443-1, is an SPDT (single-pole, double-throw) switch with an on/off/on action, allowing two distinct switching positions plus an off center.

What are the dimensions of this rocker switch? The Sea-Dog 420443-1 rocker switch measures 4.94 x 1.88 x 1.25 inches.

How much does this switch weigh? The Sea-Dog 420443-1 rocker switch weighs 0.02 pounds.

What material is the switch made of? It is made of plastic, a material chosen for its durability and resistance to the moisture and handling typical of marine electrical panels.

How does this switch connect to wiring? The 420443-1 rocker switch uses a quick connect terminal design, allowing it to be wired to a panel without soldering.

Is this switch normally open or normally closed? Part number 420443-1 has a normally open contact type with a 2-way circuit configuration.

Will this switch fit my Sea-Dog bilge pump panel? Yes, part number 420443-1 is the designated replacement rocker switch for the Sea-Dog Splash Guard Bilge Pump Panel, dropping into the same panel cutout as the original switch.

Is this a genuine Sea-Dog part or an aftermarket copy? The 420443-1 rocker switch is a genuine Sea-Dog replacement part, not a generic aftermarket substitute.

What is the insulation resistance rating of this switch? The Sea-Dog 420443-1 rocker switch has an insulation resistance rating of 100 Megaohms.

How is this switch installed? This rocker switch installs by panel mount, fitting into the existing switch panel cutout and connecting via its quick connect terminals in place of the original switch.

What is included when I order this part? Ordering part number 420443-1 gets you the replacement rocker switch itself, sold individually as a direct replacement component.