Sierra RK19120 Contura XIV Marine Rocker Switch – Off-On-(On), SPDT, Maintained/Momentary
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Sierra RK19120 Contura XIV Marine Rocker Switch – Off-On-(On), SPDT, Maintained/Momentary
The Sierra RK19120 is a premium sealed marine rocker switch from the Contura XIV series with an asymmetric Off-On-(On) SPDT (Single Pole, Single Throw) configuration. One active position is maintained — the switch stays on when you release it — while the other active position is momentary, springing back to off when released. Unlike a standard On-Off-On switch, this configuration has no center-off rest position: the switch sits in either the maintained on position or the momentary on position, with off only as the starting point before the first press.
This layout is suited to applications where a circuit needs to be held on continuously in one direction while a second momentary function is available from the same switch body — without the need for a center-off position between them. Sealed to IP66/68 for above-panel components, the RK19120 keeps water and spray out of the switch mechanism in demanding marine environments. The silver-plated butt contact mechanism delivers maximum contact reliability, and the greaseless construction handles extreme temperature ranges without maintenance. The removable actuator allows style changes or replacement without removing the switch body from the panel.
Key Specifications
- Part Number: 11-RK19120
- Series: Contura XIV
- Switch Type: Rocker, Off-On-(On)
- Circuit Configuration: SPDT (Single Pole, Double Throw)
- Action: Asymmetric — one side maintained On, one side momentary (On), Off is the starting position only
- Sealing: IP66/68 (above-panel components)
- Contact Mechanism: Silver-plated butt contact
- Construction: Greaseless — rated for extreme temperatures
- Actuator: Removable for style change or replacement
- Panel Seal: Yes — prevents water ingress beneath panel
Compatible Applications
- Circuits requiring a maintained on state in one direction and a momentary pulse in the other, without a center-off position
- Applications where a continuous run state and a momentary override or secondary function are needed from a single switch
- Marine helm panels requiring IP66/68-rated asymmetric SPDT rocker switches
- Replacement for worn or damaged Off-On-(On) SPDT asymmetric rocker switches
Parts Desk Insights
The RK19120 is a specialized switch — choose it when your application needs one maintained on position and one momentary on position from the same rocker, and you do not need a center-off position between them. This is a less common configuration; if you’re unsure whether you need it, verify your wiring diagram before ordering. If you need both active positions to be maintained (no momentary), the Sierra RK19130 Off-On-On SPDT is the fully maintained version of this layout. If you need a center-off position between two active states, the Sierra RK19050 On-Off-On SPDT is the standard maintained center-off alternative. For a fully momentary center-off switch (both sides spring back), the Sierra RK19060 (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.