Description
Blue Sea 7931 Contura II SPDT Black Switch | Boat Supply Store
Engineered for demanding marine environments, this switch provides reliable control for critical onboard systems. It features a robust SPDT ON-OFF-ON configuration capable of handling 20A at 12V or 15A at 24V, with an operating temperature range from -40°C to 85°C. Its superior environmental resistance, including vibration, shock, and salt spray, makes it suitable for applications like controlling combined navigation and anchor lights on offshore fishing vessels.
Key Features
- Reliable SPDT ON-OFF-ON action for versatile circuit control
- Durable construction resistant to vibration, shock, and salt spray
- Sealed internal and external gasket panel seal for moisture protection
- Integrated dual embedded LEDs rated for 100,000 hours
- Versatile panel mounting compatible with Contura Water Resistant Panels
- High-temperature tolerance from -40°C to 85°C
- Ample current handling up to 20A at 12V
- Professional grade for marine electricians and serious DIYers
Specifications
| Product Specifications | |
|---|---|
| Actuator Color | Black |
| Pole/Throw Configuration | SPDT |
| Action | ON-OFF-ON |
| Voltage Rating | 12V/24V |
| Amperage Rating (12V) | 20A |
| Amperage Rating (24V) | 15A |
| Operating Temperature | -40°C to 85°C |
| LEDs | Dual embedded |
| Sealing | Internal and external gasket panel seal |
| Resistance | Vibration, shock, thermoshock, moisture, salt spray |
Who This Is For
Marine electricians and boat owners seeking a durable, reliable ON-OFF-ON switch for critical electrical circuits. This switch is ideal for applications demanding high environmental resistance and long-term performance in harsh marine conditions.
How It Compares
| Feature | Blue Sea 7931 Contura II SPDT Black Switch | Carling Technologies L |
|---|---|---|
| Action | ON-OFF-ON | Various, ON-OFF-ON |
| Pole/Throw | SPDT | Various, SPDT |
| Maximum Amperage (12V) | 20A | Up to 20A, 20A |
| Embedded LEDs | Yes (2) | Optional/Model Dependent, No |
| Environmental Resistance | Vibration, shock, thermoshock, moisture, salt spray | Varies by model, optional sealing, Weatherproof |
Common Concerns Answered
Are the LEDs bright enough for daytime use?
While customers appreciate the dual embedded LEDs, some have noted that their brightness may be insufficient under very bright sunlight. Consider supplemental indicators if high visibility in direct sun is critical.
Is this switch truly waterproof?
The Blue Sea 7931 features both internal and external gasket seals, providing excellent water resistance against moisture and salt spray, crucial for marine environments. It is designed to withstand harsh conditions, though submersion should still be avoided.
Why is this switch more expensive than generic options?
The investment in the Blue Sea 7931 is justified by its superior durability, specialized environmental resistance (vibration, shock, salt spray), and integrated dual LEDs, ensuring long-term reliability and performance in demanding marine applications where generic switches often fail.
Frequently Asked Questions
What is the amperage rating for the Blue Sea 7931 Contura II Switch?
The switch is rated for 20A at 12V and 15A at 24V.
What does SPDT mean for this switch?
SPDT stands for Single Pole, Double Throw, meaning it has one input circuit that can be connected to one of two output circuits, providing the ON-OFF-ON functionality.
Can this switch be used for navigation lights?
Yes, the ON-OFF-ON SPDT configuration and robust construction make it suitable for controlling navigation lights, especially in conjunction with other lighting circuits.
What is the operating temperature range of this switch?
The switch is designed to operate reliably within a temperature range of -40°C to 85°C.
Is this switch waterproof or water-resistant?
This switch offers superior water resistance due to its internal and external gasket panel seals, designed to prevent moisture and salt spray ingress in harsh marine environments.
