Sea-Dog 4202531 Large Illuminated DPDT On/Off Rocker Switch – 15A, Snap-In, 7/8" × 1-7/16"
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Illuminated Double-Pole On/Off Rocker in the Standard Large Marine Panel Format
The Sea-Dog 4202531 Large Illuminated DPDT On/Off Rocker Switch combines double-pole switching with LED status indication in the same snap-in large rocker format that fits standard 7/8" × 1-7/16" marine panel cutouts. Double Pole, Double Throw (DPDT) configuration means this switch controls two separate circuits simultaneously from a single rocker — flip on and both circuits energize together, flip off and both cut simultaneously. The LED illuminates in the On position, giving you instant visual confirmation that the switch is active.
Snaps directly into any standard 7/8" × 1-7/16" panel slot with no tools or hardware required, and wires up with standard 1/4" blade terminals. Built from durable injection-molded nylon and stamped brass, rated at 15A and 12V DC.
Key Features
- DPDT configuration — Double Pole, Double Throw (controls two circuits simultaneously)
- 2 positions: On – Off (maintained)
- LED illuminates when switch is in the On position
- 15A rating at 12V DC
- Snap-in installation — fits standard 7/8" × 1-7/16" panel slot
- 1/4" blade terminals for direct wiring
- Injection-molded nylon and stamped brass construction
- Large rocker format for easy operation
Compatible Applications
- Dual-circuit accessory switching from a single rocker (two loads on/off together)
- Navigation lighting circuits requiring simultaneous switching of port and starboard lights
- Helm and cockpit panel dual-output on/off control
- Any application requiring two circuits to switch in tandem with illuminated status
- Standard 7/8" × 1-7/16" marine rocker switch panel positions
- 12V DC dual-circuit applications up to 15A per pole
Parts Desk Insights
Best use case: The illuminated DPDT On/Off rocker is the right switch when you need to control two circuits simultaneously from a single rocker and want LED confirmation that the switch is active — a common requirement for navigation lighting (port and starboard switched together), dual-pump systems, or any installation where two loads must always operate in tandem. The illuminated status indicator is particularly useful on multi-switch panels where it’s easy to lose track of which circuits are live. For three-position DPDT control (On/Off/On), use the non-illuminated DPDT rocker instead.
Related Sea-Dog switches: For the non-illuminated DPDT On/Off/On version in the same large format, see the Sea-Dog Large DPDT On/Off/On Rocker Switch. For the illuminated SPST (single-pole) version in the same cutout, the Sea-Dog Large Illuminated SPST On/Off Rocker Switch controls one circuit at a time. For a complete pre-built switch panel, the Sea-Dog Splash Gard 6-Gang Rocker Switch Panel pairs well for full helm builds.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.