Switch Toggle Spst Off-On
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Blue Sea Systems Switch Toggle SPST OFF-ON (661-8204) is a panel-mount on/off toggle switch designed for use in Blue Sea Systems A-Series toggle circuit breaker panels—ideal when you need switching in addition to circuit protection for common marine loads like bilge pumps, horns, wipers, and engine control circuits.
Key Features
- Mounts in Blue Sea A-Series breaker panel apertures
- Includes a mounting adapter for a standard 5/8" circuit breaker mounting hole
- Nickel-plated brass and phenolic non-corrosive construction
- White actuator
- SPST (single-pole, single-throw) OFF-(ON) switching action
- 15A @ 32V DC or 125V AC; 10A @ 250V AC (rating)
- 1/4" tab terminals
- On in parenthesis (On) indicates a momentary position
Product Compatibility
- Marine electrical circuits where switching is required in addition to circuit protection
- Starter/battery control applications
- Bilge pump switching circuits
- Horn switching circuits
- Wiper switching circuits
- Engine control switching circuits
Product Details
- Blue Sea Systems switch toggle: SPST OFF-ON
- Part/SKU: 661-8204
- Panel mounting: for Blue Sea A series breaker panels
- Mounting adapter: included for standard 5/8" circuit breaker mounting hole
- Construction: nickel-plated brass and phenolic non-corrosive construction
- Actuator color: white
- Terminals: 1/4" tab terminals
- Electrical rating: 15A @ 32V DC or 125V AC; 10A @ 250V AC
- Switch action note: On in parenthesis (On) indicates a momentary position
Parts Desk Insights
Best Use Case: Choose this switch when you’re repowering or adding a dedicated panel control for an on/off marine load, and you want a clean toggle interface that fits Blue Sea Systems A-Series breaker panel mounting holes.
Common Issues: Verify your panel opening matches the 5/8" mounting-hole standard (and that you’re using the included adapter if needed). Double-check that your wire terminations are compatible with 1/4" tab terminals before installation.
Related Products & Accessories
- Switches & Circuit Protection - Browse matching switch and circuit protection components for Blue Sea A-Series style panel 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.