Description
Blue Sea 7945 Contura III SPDT Switch | Boat Supply Store
Engineered for the harsh marine environment, this switch provides dual functionality for critical DC circuits. Its SPDT (ON)-OFF-(ON) configuration allows for both maintained and momentary activation of connected accessories. Featuring robust salt spray resistance, this component is ideal for controlling bilge pumps with an override or activating deck washdowns on offshore sportfishing vessels operating in brackish or saltwater.
Key Features
- Durable SPDT (Single Pole Double Throw) configuration
- Versatile Momentary ON position on both sides of OFF
- Corrosion-Resistant Salt spray resistant
- Integrated Mounting Designed for Contura Water Resistant Panels
- Secure Fitment Designed for Contura Switch Mounting Panels
- Aesthetic Black actuator
- Reliable Engineered for demanding marine use
- Precise Control Allows for maintained and momentary circuit operation
Specifications
| Product Specifications | |
|---|---|
| Switch Type | SPDT (ON)-OFF-ON |
| Actuator Color | Black |
| Environmental Resistance | Salt spray resistant |
| Panel Compatibility | Contura Water Resistant Panels and Contura Switch Mounting Panels |
| Proposition 65 Warning | This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. |
Who This Is For
Marine enthusiasts, boat builders, and DIYers requiring a reliable, durable, and weather-resistant switch for critical electrical circuit control. Ideal for applications needing a momentary ON function alongside maintained ON and OFF states for accessories on any vessel.
How It Compares
| Feature | Blue Sea 7945 Contura III SPDT Switch | Competitor |
|---|---|---|
| Switch Type | SPDT (ON)-OFF-(ON) | SPST ON-OFF, SPDT (ON)-OFF- |
| Momentary Function | Yes (ON) | No, Yes |
| Environmental Resistance | Salt spray resistant | IP67, IP67 |
| Panel Mounting | Contura Water Resistant Panels and Contura Switch Mounting Panels | Standard panel mount cutout, Standard panel mount cutout |
Common Concerns Answered
Is this switch expensive compared to others?
While the price point may be higher than non-marine specific switches, the Blue Sea 7945 Contura III Switch justifies its cost with superior durability and environmental resistance specifically engineered for marine environments, ensuring long-term reliability.
Do I need special panels for this switch?
For optimal mounting and environmental sealing, this switch is designed to integrate with specific Contura Water Resistant Panels and Contura Switch Mounting Panels, ensuring a secure and robust installation.
Are there any safety warnings associated with this product?
Yes, this product carries a California Proposition 65 warning regarding exposure to chemicals known to cause cancer, birth defects, or other reproductive harm. Please review the warning details at P65Warnings.ca.gov.
Frequently Asked Questions
What is the function of a SPDT ON-OFF-ON switch?
A SPDT (Single Pole Double Throw) ON-OFF-ON switch has three positions: OFF in the center, a maintained ON position on one side, and a momentary ON position on the other side. The ON-OFF-ON designation indicates the terminal connections and operational states.
Is this switch suitable for marine environments?
Yes, the Blue Sea 7945 Contura III Switch is specifically designed for marine environments, featuring salt spray resistance to withstand corrosive conditions commonly found on boats.
What type of panel does this switch mount in?
This switch is designed to mount in Blue Sea Systems Contura Water Resistant Panels and Contura Switch Mounting Panels for a secure and weatherproof installation.
What are the dimensions of the Blue Sea 7945 Contura III Switch?
Detailed dimensional drawings and specifications can be found in the product manual linked at the end of this description. Ensure your panel cutout and surrounding space accommodate the switch's footprint.
What is the electrical rating of this switch?
While not explicitly stated in the provided data, Blue Sea Systems typically rates their Contura III switches for common DC marine voltages and amperage requirements. Consult the product manual for precise electrical ratings.
