Blue Sea SPDT (ON)OFF(ON) Toggle Switch
Blue Sea SPDT (ON)OFF(ON) Toggle Switch
Momentary Action - Fits A-Series & 5/8" (16mm) Apertures - Marine Grade

DESCRIPTION
Momentary Dual-Action Control for Marine and Off-Grid Electrical Panels
Managing critical auxiliary systems requires reliable, responsive control. The Blue Sea SPDT (ON)OFF(ON) Toggle Switch provides precise manual actuation for applications demanding a momentary, dual-throw switching arrangement. In electrical nomenclature, parentheses around the "ON" state signify a momentary action. This means the white toggle actuator stays in a central OFF resting position and only energises the selected circuit while actively held in either of the two ON positions, automatically returning to the centre when released.
This specific switching logic is vital for systems that require temporary engagement in two different modes or directions. It eliminates the risk of accidentally leaving a high-draw or sensitive circuit engaged, protecting starter motors, pumps, and actuators from burnout or battery drain.
Engineered for Seamless A-Series Panel Integration
Achieving a uniform, factory-grade finish on custom dashboards and power distribution boards can be challenging when mixing circuit breakers and standard switches. This unit is specifically designed to mount directly into standard Blue Sea Systems A-Series toggle circuit breaker apertures. It includes a pre-drilled black faceplate that matches the footprint of A-Series breakers, allowing system builders to maintain a clean, consistent aesthetic across the entire panel without awkward gaps or mismatched hardware.
For versatile installation across custom helm stations, caravan control boards, or industrial enclosures, the switch also comes supplied with a dedicated mounting adapter. This allows seamless fitment into a standard 5/8-inch (approx. 16mm) circuit breaker mounting hole, secured firmly via a threaded bushing and knurled nut.
Key Features and Technical Benefits
- Momentary SPDT Configuration: Single Pole Double Throw (ON)OFF(ON) action provides temporary circuit activation in two distinct directions from a central off position.
- A-Series Aperture Compatibility: Mounts flush into A-Series toggle circuit breaker cutouts for a unified panel layout.
- Versatile Mounting Adapter: Includes an adapter to fit standard 5/8-inch (approx. 16mm) circular mounting holes.
- Corrosion-Resistant Materials: Constructed from nickel-plated brass and a durable phenolic body to withstand harsh marine and mobile environments.
- Quick Connect Termination: Equipped with rear flat tab terminals designed for standard spade connectors, simplifying wiring and maintenance.
Built for Harsh Marine and Mobile Environments
Standard automotive switches often fail prematurely when exposed to salt air, high humidity, and constant vibration. Constructed with a non-corrosive nickel-plated brass bushing and a heavy-duty phenolic housing, this toggle switch resists oxidation and mechanical wear. The rear quick-connect tab terminals allow for rapid, secure wiring using standard spade connectors, reducing installation time inside tight console spaces.
Typical Applications
The momentary dual-throw design makes this component ideal for a wide range of marine, RV, and commercial vehicle functions:
- Generator Starters: Safely manage pre-heat and cranking sequences without risking starter motor overrun.
- Bilge Pumps: Toggle between momentary manual override testing and secondary pump purging.
- Engine and Helm Controls: Operate trim tabs, hydraulic jack plates, or dual-tone marine horns.
- Wiper and Washer Systems: Control momentary wash cycles alongside intermittent wiper relays.
Upgrade Your Control Panel
Ensure dependable, corrosion-resistant operation for your critical momentary circuits. Integrate this Blue Sea toggle switch into your A-Series panel or custom dashboard today for professional-grade electrical control.
SKU: BS-8208B
SPECIFICATIONS
| Specification | Details |
|---|---|
| Switching configuration | SPDT (ON)OFF(ON) |
| Actuation | Manual toggle |
| Mounting | Panel mount; fits A-Series toggle circuit breaker apertures |
| Mounting adapter | Supplied for a standard 5/8-inch circuit breaker mounting hole |
| Material | Nickel-plated brass and phenolic |
| Applications | Generator starters, bilge pumps, horns, wipers and engine controls |
| SKU: | BS-8208B |
| Model #: | BS-8208B |
| MPN: | BS-8208B |
| Package weight: | 0.06 kg |
| Package length: | 0.09 m |
| Package width: | 0.04 m |
| Package height: | 0.06 m |
WARRANTY
Blue Sea Warranty Policy
Blue Sea Systems products sold by us are supplied with a warranty against defects for the warranty period shown below, subject to the product type, application and the terms of this warranty policy.
The express warranty provided by us is limited to a maximum of 5 years from the original date of purchase, unless otherwise required under Australian Consumer Law.
Blue Sea Systems may offer longer manufacturer support on some products at their discretion
Warranty Lengths by Product Range
| Blue Sea Product Range | Warranty Length | Application / Notes |
|---|---|---|
| Most Blue Sea Systems Products | 5 years | Applies to most Blue Sea Systems products found to be defective in materials or manufacture. |
| P12 Battery Chargers | 5 years | Warranty period starts from the original date of purchase. |
| P12 Remote Displays | 5 years | Warranty period starts from the original date of purchase. |
| Digital Meters | 3 years | Warranty period starts from the original date of purchase. |
| Vessel System Monitors | 3 years | Warranty period starts from the original date of purchase. |
Warranty Assessment and Remedy
If a Blue Sea Systems product is found to be defective in materials or manufacture within the applicable warranty period, we will, at our discretion, arrange a repair, replacement, store credit or refund, depending on the nature of the fault and the requirements of Australian Consumer Law.
Products may need to be returned for assessment before a warranty claim can be approved. Where required, the product must be returned with dated proof of purchase and a clear description of the fault.
Labour costs for removing, replacing, reinstalling or diagnosing a product are not covered by this express warranty unless otherwise required under Australian Consumer Law.
Making a Warranty Claim
To make a warranty claim, please contact us with your dated proof of purchase, product details and a description of the fault.
The product may need to be returned for inspection before the claim can be assessed. If the product is confirmed to be faulty and covered by this warranty, we will advise the available remedy.
What This Warranty Does Not Cover
This warranty does not cover faults or damage caused by incorrect installation, incorrect application, misuse, abuse, neglect, unauthorised modification, accidental damage, normal wear and tear, environmental damage, or failure to use the product in accordance with the manufacturer's instructions.
- Incorrect installation or wiring
- Incorrect product selection or application
- Misuse, abuse or neglect
- Physical or accidental damage
- Water ingress or environmental damage outside the product's intended use
- Unauthorised modification or repair
- Normal wear and tear
- Labour costs for removal, replacement, reinstallation or diagnosis
- Freight, travel or call-out costs unless otherwise required by law
- Products not returned for assessment when reasonably required
Manufacturer Support
Blue Sea Systems may provide additional manufacturer support on some products beyond the warranty period listed above. Where available, we may assist customers in contacting the manufacturer, but any manufacturer support beyond the express warranty period is subject to the manufacturer's own terms and continued availability.
Australian Consumer Law
This warranty is in addition to other rights and remedies available at law. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

