Sierra RK40820 Compact Marine Rocker Switch – Off-On, SPST, Maintained, 12/24VDC, AC Rated
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Sierra RK40820 Compact Marine Rocker Switch – Off-On, SPST, Maintained, 12/24VDC, AC Rated
The Sierra RK40820 is a compact maintained Off-On SPST rocker switch with a high-profile rocker action that delivers a crisp, positive feel with every press. Its compact body fits a standard rectangular panel cutout, making it a practical choice for marine electrical panels, AC shore power panels, and general-purpose switching applications where space is at a premium.
The Off-On configuration provides a simple two-position maintained switch — off or on — with no additional positions. Once switched on, it stays on until you switch it back. Rated for both AC and DC operation — 12A at 125V AC, 10A at 250V AC, and suitable for 12V and 24V DC systems — making it a versatile option for mixed AC/DC panel builds.
Key Specifications
- Part Number: 11-RK40820
- Switch Type: Compact Rocker, Off-On (maintained)
- Circuit Configuration: SPST (Single Pole, Single Throw)
- Action: Maintained — stays in position when released
- AC Rating: 12A at 125V AC / 10A at 250V AC
- DC Rating: Suitable for 12V and 24V DC systems
- Panel Cutout: Standard rectangular
- Note: (On) in parentheses on any switch in this series designates a momentary position
Compatible Applications
- Marine DC electrical panels for 12V and 24V accessory circuits requiring a simple on/off switch
- AC shore power distribution panels and AC circuit switching on board
- General-purpose maintained On-Off switching where a compact switch body is required
- Replacement for worn or damaged compact Off-On SPST rocker switches
- Any panel using a standard rectangular rocker switch cutout
Parts Desk Insights
The RK40820 is functionally equivalent to the RK40800 for most On-Off switching applications — both are compact maintained SPST switches with the same AC/DC ratings. The difference is the switch labeling and orientation: the RK40820 is labeled Off-On (off is the first position), while the Sierra RK40800 is labeled On-Off. Choose based on which orientation matches your panel layout or labeling convention. If you need a momentary compact switch that springs back to off when released, the Sierra RK40810 Compact Off-(On) SPST Momentary is the momentary alternative. For a compact switch with a center-off position and two active states, the Sierra RK40850 Compact On-Off-On SPDT covers that application.
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.