Sea-Dog Momentary Push Button Horn Switch, Red, 420415-1, 15 Amp 12V

The Sea-Dog 420415-1 is a panel-mounted, momentary push button switch designed to operate fog horns, sirens, and similar signaling devices aboard a boat. The switch is a momentary SPST on-off type, meaning it completes the circuit only while the button is pressed and releases automatically when let go, making it well suited to horn and alarm circuits where continuous contact is not desired. It mounts into a 1/2 inch diameter hole in a helm or console panel and is rated for a maximum panel thickness of 5/16 inch, keeping installation straightforward on typical instrument panels. Electrical connections are made with 1/4 inch QD (quick disconnect) terminals for a simple, tool-friendly wiring hookup. The switch is rated 15 Amps at 12 Volts DC, matching standard marine 12V electrical systems. Construction combines a nylon/phenolic switch body with chrome plated brass hardware for corrosion resistance in a marine environment. This version features a bright red button, chosen specifically to make the switch easily identifiable in an emergency situation; a black button version of the same switch is also available under a different part number for boat builders who prefer a lower-visibility finish. The 420415-1 is manufactured by Sea-Dog and is intended as a direct, ready-to-install horn or signal switch for recreational and light commercial marine wiring.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 420415-1
• Switch Action: SPST Momentary On-Off
• Mounting Hole Diameter: 1/2 inch
• Maximum Panel Thickness: 5/16 inch
• Amperage: 15 Amps
• Voltage: 12 Volts DC
• Color: Red
• Material: Nylon/Phenolic and Chrome Plated Brass
• Terminal Type: 1/4 inch QD (quick disconnect) terminals
• Weight: 0.03 pounds
• Item Dimensions: 3.75 x 1.88 x 0.75 inches
• OEM Equivalent Part Number: 702914
• UPC: 035514423748

Replaces (OEM)

• 702914

Frequently Asked Questions

What does the Sea-Dog 420415-1 horn switch do? It is a momentary SPST on-off push button switch that completes a circuit only while pressed, used to operate fog horns, sirens, and similar signal devices on a boat.

What size hole do I need to mount this switch? The 420415-1 mounts into a 1/2 inch diameter panel hole and is designed for a maximum panel thickness of 5/16 inch.

Is this switch red or black? This particular part number, 420415-1, comes with a bright red button, chosen so it can be easily identified in an emergency; a black button version is offered under a separate Sea-Dog part number.

What is the amperage and voltage rating? The Sea-Dog 420415-1 is rated 15 Amps at 12 Volts DC, matching standard 12V marine electrical circuits.

What material is the switch made of? It is constructed of nylon/phenolic with chrome plated brass hardware, chosen for durability in a marine environment.

How do I wire the 420415-1 into my horn circuit? The switch is wired using 1/4 inch QD (quick disconnect) terminals, allowing spade-type connectors to be pushed on without soldering.

Is there an OEM equivalent part number for this switch? Yes, the Sea-Dog 420415-1 has an OEM equivalent part number of 702914.

Does the 420415-1 include a waterproof cap? No, this listing is for the horn switch itself; it does not include a separate waterproof cap.

What is the weight of this horn switch? The Sea-Dog 420415-1 weighs 0.03 pounds.

Can this switch be used for something other than a horn? Yes, the 420415-1 is a general-purpose momentary on-off push button switch and can operate sirens or similar 12V signal devices in addition to fog horns.

Is this a momentary or a locking switch? It is a momentary switch, meaning the 420415-1 only stays on while the button is held down and turns off automatically when released.

What are the overall dimensions of the switch? The Sea-Dog 420415-1 measures approximately 3.75 x 1.88 x 0.75 inches.