Sierra MP39580 Marine Push-Pull Switch Sequential Dual-Circuit, On/On

Sierra MP39580 Marine Push-Pull Switch Sequential Dual-Circuit On/On

The Sierra MP39580 is a heavy-duty marine push-pull switch built for sequential dual-circuit control on boats and watercraft. Solid brass construction and stainless steel springs deliver the corrosion resistance and long-term reliability that marine electrical panels demand. The sequential action is what sets this switch apart: the first pull energizes circuit 1, and the second pull energizes both circuits 1 and 2 simultaneously making it ideal for applications where you want staged activation, such as running lights followed by spreader lights, or a blower followed by an engine circuit.

The 3/8″ diameter mounting stem fits panels up to 1″ thick, compatible with most standard marine dash panels. Rated at 15A @ 12V DC and 25A @ 24V DC.

Key Specifications

• Switch Type: Push-Pull, Sequential Dual-Circuit
• Action: Pull 1 Circuit 1 On | Pull 2 Circuits 1 & 2 On
• Mounting Stem Diameter: 3/8″
• Panel Thickness Compatibility: Up to 1″
• Current Rating: 15A @ 12V DC / 25A @ 24V DC
• Construction: Solid brass body, stainless steel springs
• Terminal Type: 3 Screw Terminals
• SKU: 11-MP39580

Compatible Applications

• Staged lighting control running lights on first pull, spreader or deck lights on second
• Sequential accessory activation on 12V or 24V DC marine electrical panels
• Powerboats, center consoles, and pontoons with multi-circuit dash panels
• Any application requiring two circuits to activate in sequence from a single panel-mount switch

Parts Desk Insights

The MP39580 is the right choice when you need two circuits to come on in stages from a single switch circuit 1 first, then both circuits together on the second pull. This is common for lighting setups where you want running lights before activating spreader or cockpit lights. If you only need a simple single-circuit On/Off, the Sierra MP39530 2-Position Off-On Switch is the simpler fit. For a 3-position On/Off/On configuration controlling a single circuit from two locations, the Sierra MP39400 covers that application. If your setup requires energizing two completely separate circuits simultaneously (not sequentially), the Sierra MP39600 is the better match.