Sea-Dog Toggle Switch 420103-1, DPDT On/Off/On, 15 Amp 12 Volt Panel Mount

The Sea-Dog 420103-1 is a water resistant DPDT toggle switch built for marine electrical panels where reliable on/off/on switching is needed in a wet environment. It uses a double-pole, double-throw (DPDT) circuit with an On/Off/On action, giving it 6 terminal blades so it can control two separate circuits from a single lever, such as switching a device between two power sources or reversing polarity on a device like a trim pump or windshield wiper motor.

Construction is stamped brass, injection molded nylon, and polycarbonate, and the switch is rated for 15 Amps at 12 Volts DC. Water resistance comes from a locking ring with a lever seal and a protruding cap nut, which also makes panel installation straightforward: the bushing measures 3/8 inch (A) by 1/2 inch (B) so it drops into a standard round toggle switch panel cutout. The lever seal keeps spray and splash out of the switch body, making it a good fit for helm panels, engine rooms, and other exposed mounting locations on a boat.

The 420103-1 ships as a panel mount switch with spade terminals for wiring. It is sold individually and is one of several circuit configurations in the Sea-Dog toggle switch line, so buyers who need a simple SPST on/off or a momentary switch instead can select the matching part number in the same series.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 420103-1
• Switch Type: Toggle Switch
• Circuit/Action: DPDT, On/Off/On
• Terminals: 6 blades, spade terminal
• Amperage: 15 Amps
• Voltage: 12 Volts DC
• Dimensions: 3/8 inch (A) x 1/2 inch (B)
• Weight: 0.04 pounds
• Material: Stamped brass, injection molded nylon, polycarbonate
• Mounting Type: Panel mount
• Color: Black
• International Protection Rating: IP20
• UPC: 035514420792

Frequently Asked Questions

What does DPDT On/Off/On mean on the Sea-Dog 420103-1? DPDT stands for double-pole, double-throw, meaning the 420103-1 switches two separate circuits at once, and On/Off/On means the lever has a center off position with an active on position on either side, using 6 terminal blades total.

Is the Sea-Dog 420103-1 waterproof? The 420103-1 is water resistant, using a locking ring with a lever seal and a protruding cap nut to keep spray and splash out of the switch body, which suits helm panels and engine room mounting.

What amperage and voltage is this toggle switch rated for? The Sea-Dog 420103-1 is rated for 15 Amps at 12 Volts DC.

What size panel cutout does the 420103-1 need? The switch bushing measures 3/8 inch by 1/2 inch, so it fits a standard round toggle switch panel cutout of that size.

What is the 420103-1 made of? It is constructed of stamped brass, injection molded nylon, and polycarbonate.

How much does the Sea-Dog 420103-1 weigh? The 420103-1 weighs 0.04 pounds.

What type of terminals does this switch use? The 420103-1 has 6 spade terminal blades to accommodate its DPDT On/Off/On wiring.

Does the 420103-1 come with a waterproof cap? No, the waterproof cap is a separate accessory sold under its own part number in the Sea-Dog toggle switch line; the 420103-1 itself is the switch only.

What color is the Sea-Dog 420103-1 toggle switch? The 420103-1 has a black finish.

How is the 420103-1 different from the Sea-Dog 420101-1 or 420108-1 switches? The 420103-1 is a DPDT On/Off/On switch with 6 terminal blades for controlling two circuits, while the 420101-1 is a simpler SPST On/Off switch and the 420108-1 is an SPDT On/Off/On switch, each with fewer terminal blades for single-circuit control.

Is the 420103-1 a panel mount or surface mount switch? The 420103-1 is a panel mount toggle switch, installed through a round cutout using its threaded bushing and locking ring.