Cole Hersee SPST Momentary Push-Button Switch Off / Momentary On

Instant-Action Control for Marine and Powersport Panels

The Cole Hersee SPST Momentary Push-Button Switch gives you a clean, reliable momentary contact point for horns, starters, bilge overrides, and other momentary-trigger circuits. Press the button and the circuit closes release it and the spring snaps it back to off. No latching, no fuss.

Built with silver contacts for low-resistance conductivity and a molded plastic insulator with a protective barrier between terminals, this switch is designed for safe, long-term panel installation. The 5/8″-32 threaded stem fits standard marine panel cutouts and accommodates panels up to 1″ thick.

Key Features

• SPST configuration Single Pole, Single Throw
• Two positions: Off / Momentary On (spring return to off)
• Silver contacts for reliable, low-resistance switching
• Molded plastic insulator with protective terminal barrier
• Mounting stem: 5/8″-32 thread, 1-3/8″ length
• Fits panels up to 1″ thick
• Compact footprint installs in standard marine switch cutouts

Compatible Applications

• Horn activation circuits
• Engine start/starter motor triggers
• Bilge pump manual override
• Windlass or anchor winch momentary control
• Custom marine electrical panels
• Powersport and ATV momentary circuits
• Any 12V DC momentary-on application

Parts Desk Insights

Best use case: This is the go-to switch for a dedicated horn button or a secondary manual start trigger on a custom panel. Its no-cover design keeps the profile slim and the install clean ideal when the switch is recessed or protected by the panel itself. If your installation is exposed to spray or accidental contact, consider pairing it with a protective cover.

Related switches: Need a covered version? See the Momentary Push-Button Switch with Cover. For a higher-amperage momentary option, the Cole Hersee 90030BP Heavy-Duty Push-Button Switch (35A) is a popular upgrade. The Cole Hersee M485BP Momentary Push-Button Switch is a close sibling in packaged form.