Sea-Dog Illuminated Contura Rocker Switch 420213-1, SPDT On/Off/On, 20 Amp 12 Volt

The Sea-Dog 420213-1 is an illuminated Contura rocker switch built for marine electrical panels where reliable switching and visible ON status matter. It is configured as an SPDT (single pole, double throw) On/Off/On switch with 4 blade terminals, rated for 20 amps at 12 volts DC. A red light illuminates the rocker face whenever the switch is in the ON position, giving an at-a-glance indication of circuit status from the helm or panel.

Construction is injection molded nylon for the housing and stamped brass with silver tin oxide contacts for the switching mechanism, giving the switch corrosion-resistant contacts paired with a tough, UV-stable nylon body. The switch is built to withstand the conditions common to boats: it is vibration, shock, thermoshock, moisture, and salt spray resistant, and it operates across a temperature range of -40C to +85C. Front panel components carry an IP66 rating for protection against dust and heavy water spray, and the switch meets UL1500 and ISO8846 ignition protection standards for use around fuel and engine spaces on marine products.

This is a panel-mount rocker switch sized 13/16 inch by 1-7/16 inch, intended to drop into standard rocker switch panel cutouts. It suits any 12 volt DC marine circuit that calls for a momentary or maintained On/Off/On SPDT switching function, such as trim tabs, lighting circuits with two modes, bilge pump manual/auto selection, or other two-way circuit control where the operator needs a lit indicator of switch state.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 420213-1
• Switch Type: Illuminated Contura Rocker Switch
• Circuit Type: SPDT (single pole, double throw)
• Action: On/Off/On
• Terminals: 4 Blades
• Amperage: 20 Amps
• Voltage: 12 Volts DC
• Dimension A: 13/16 inch
• Dimension B: 1-7/16 inch
• Weight: 0.078 pounds
• Material: Injection molded nylon and stamped brass with silver tin oxide contacts
• Ingress Protection: IP66 (front panel components only)
• Operating Temperature Range: -40C to +85C
• Ignition Protection: UL1500 / ISO8846
• Indicator Light: Red light illuminates in the ON position

Fitment

This is a universal panel-mount rocker switch, not tied to a specific make, model, or year.

Frequently Asked Questions

What is the electrical rating of the Sea-Dog 420213-1 rocker switch? The Sea-Dog 420213-1 is rated for 20 amps at 12 volts DC, making it suitable for standard marine 12 volt circuits.

Is this switch illuminated? Yes, the 420213-1 displays a red light on the rocker face whenever the switch is in the ON position, giving a clear visual indicator of circuit status.

What type of circuit does the 420213-1 use? It is an SPDT (single pole, double throw) switch with an On/Off/On action and 4 blade terminals, allowing it to control two separate circuit positions from one switch.

What are the physical dimensions of this switch? The Sea-Dog 420213-1 measures 13/16 inch by 1-7/16 inch, sized for a standard rocker switch panel cutout.

How much does the 420213-1 weigh? This switch weighs 0.078 pounds.

What is the switch made of? The 420213-1 is constructed of injection molded nylon for the housing and stamped brass with silver tin oxide contacts for the switching mechanism.

Is the Sea-Dog 420213-1 waterproof? The front panel components of this switch carry an IP66 rating, meaning they resist dust intrusion and powerful water jets, and the switch is also rated resistant to moisture and salt spray.

What temperature range can this switch handle? The 420213-1 operates across a range of -40C to +85C, suiting it to extreme heat and cold encountered on boats.

Is this switch ignition protected for use near fuel or engine spaces? Yes, the Sea-Dog 420213-1 meets UL1500 and ISO8846 ignition protection standards for marine products.

What does the On/Off/On action mean for wiring this switch? On/Off/On means the 420213-1 has two active positions with a center OFF, so it can direct power to one of two circuits (or two directions of a device) with a neutral stop in between.

Does this switch fit a specific boat make or model? The 420213-1 is a universal panel-mount rocker switch and is not restricted to a particular boat make, model, or year.

How is the 420213-1 different from Sea-Dog's other Contura rocker switches like 420211-1 or 420218-1? The 420213-1 is the SPDT On/Off/On version with 4 blade terminals; other switches in the same Contura line, such as the 420211-1 (SPST On/Off, 3 blades) or 420218-1 (DPDT On/Off/On, 7 blades), offer different circuit types and terminal counts for different wiring needs.