Sea-Dog 420420-1 Momentary Push Button Switch, No Cap, SPST On-Off, 15A 12V

The Sea-Dog 420420-1 is a momentary push button on-off switch built from stamped brass to hold up in harsh marine environments. It is designed for panel mounting in a 5/8 inch diameter hole, with a maximum panel thickness of 1 inch, and wires up with two screw terminals for a straightforward electrical connection. This version ships with no cap installed, giving you a low-profile, exposed-button switch that is easy to identify by feel.

The switch is rated 15 Amps at 12 Volts DC, suitable for momentary circuits such as horn buttons, bilge pump test switches, windlass controls, or off-ignition start applications where you only want power flowing while the button is pressed. Because the mounting hole and panel thickness specs are universal, this switch is not tied to a specific boat make or model and works anywhere a standard 5/8 inch momentary switch is called for. If you prefer a covered button, Sea-Dog offers the same switch body with a black or red waterproof cap as separate part numbers, and waterproof caps are also sold individually if you want to add one later.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 420420-1
• Switch Type: Momentary Push Button Switch
• Action: SPST Momentary On-Off
• Cap Color: No Cap
• Mounting Hole Diameter: 5/8 inch
• Maximum Panel Thickness: 1 inch
• Mounting Type: Panel Mount
• Voltage: 12 Volts DC
• Amperage: 15 Amps
• Material: Stamped Brass
• Terminal Type: Screw Terminal (2)
• Ingress Protection Rating: IP54
• Weight: 0.19 pounds
• Standard Pack: 10 each

Frequently Asked Questions

What size mounting hole does the Sea-Dog 420420-1 require? The Sea-Dog 420420-1 momentary push button switch panel mounts in a 5/8 inch diameter hole.

Does this switch come with a cap? No, the 420420-1 is the no-cap version of Sea-Dog's momentary push button switch. Sea-Dog also sells the same switch with a black waterproof cap (420421-1) or a red waterproof cap (420422-1) as separate part numbers.

What is the maximum panel thickness for installation? The Sea-Dog 420420-1 is rated for panels up to 1 inch thick.

What voltage and amperage is the 420420-1 rated for? This switch is rated 15 Amps at 12 Volts DC.

What material is the switch made from? The 420420-1 is constructed of stamped brass to withstand harsh marine conditions.

How does this switch wire up? The Sea-Dog 420420-1 wires up using two screw terminals.

Is this a momentary or maintained switch? It is an SPST momentary on-off switch, meaning it only completes the circuit while the button is pressed, which is common for horn buttons, bilge pump test switches, and off-ignition start applications.

Can I add a waterproof cap to this switch later? Yes, Sea-Dog sells waterproof caps separately in black (420424-1) or red (420425-1) that fit the 5/8 inch button on the 420420-1 switch body.

What is the ingress protection rating of the 420420-1? The Sea-Dog 420420-1 momentary push button switch carries an IP54 ingress protection rating.

Is the Sea-Dog 420420-1 switch fitment-specific to a boat model? No, this is a universal momentary push button switch defined by its 5/8 inch mounting hole and 1 inch maximum panel thickness rather than a specific boat make or model.

How much does the 420420-1 weigh? The Sea-Dog 420420-1 momentary push button switch weighs 0.19 pounds.