Sea-Dog 420201-1
Non-illuminated Contura rocker for a two-terminal on/off connection.
Identify Sea-Dog Contura and Illuminated Rocker Switches
The Sea-Dog Contura switches use nearly identical rocker openings, but their rear terminals and illumination differ. Also in this range is 420251, a separate illuminated rocker that is not a Contura model. Compare the original switch body and electrical circuit before fitting a replacement.
Identify a Contura switch by the rear terminals
Use the original manufacturer number and electrical arrangement when comparing these parts. The table scrolls horizontally on smaller screens.
| MPN | Action | Terminals | Rating | Manufacturer A × B |
|---|---|---|---|---|
| 420201-1 | Maintained SPST on/off | 2 blades | 20 A / 12V DC | 13/16 × 1-7/16 in |
| 420211-1 | Maintained SPST on/off | 3 blades | 20 A / 12V DC | 13/16 × 1-7/16 in |
| 420213-1 | Maintained SPDT on/off/on | 4 blades | 20 A / 12V DC | 13/16 × 1-7/16 in |
| 420218-1 | Maintained DPDT on/off/on | 7 blades | 20 A / 12V DC | 13/16 × 1-7/16 in |
| 420251-1 | Maintained SPST on/off | 3 blades | 15 A / 12V DC | 7/8 × 1-7/16 in |
Before selecting a replacement: The 420251 illuminated rocker is not a Contura switch. Contura models 420201/211/213/218 have manufacturer dimensions A = 13/16 inch and B = 1-7/16 inch; 420251 requires a 7/8 × 1-7/16-inch panel slot. The IP66 description for Contura applies to front-panel components only.
Inspect the existing component
- Check that the original is actually a Contura rather than the separate 420251 rocker.
- Match maintained action and the number of controlled poles, not simply the front rocker colour.
- Count rear blades carefully: two, three, four, seven or three depending on the exact model.
- Compare the manufacturer's A/B panel measurements and the original switch opening before cutting the dash.
- Check that the circuit is suitable for 12V DC and that the load does not exceed the model's current rating.
Exact manufacturer-number listings
The cards open exact UsedRVParts catalog records. Check their stated condition and availability; viewing and pickup in Kelowna are by appointment.
Sea-Dog 420211-1
Illuminated single-pole rocker; extra terminal is used with its lamp circuit.
Sea-Dog 420213-1
Illuminated centre-off three-position selector with four terminal blades.
Sea-Dog 420218-1
Double-pole illuminated three-position Contura with seven terminals.
Sea-Dog 420251-1
Not a Contura rocker; has a wider mounting slot and a different DC current rating.
Related marine electrical references
Continue with Sea-Dog toggle switch functions, AGC fuse holder size and wire ratings, 12V outlets and USB charging options.
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