Description
Blue Sea 7931 Contura II SPDT ON-OFF-ON Switch | Boat Supply Store
Engineered for extreme marine conditions, this robust switch provides reliable ON-OFF-ON control for critical onboard systems. Its construction withstands operational temperatures from -40°C to 85°C and resists vibration, shock, moisture, and salt spray. Ideal for managing dual-function lights on offshore fishing boats operating in the Gulf of Mexico, it features dual embedded LEDs for clear status indication.
Key Features
- Reliable SPDT (Single Pole/Double Throw) ON-OFF-ON action for versatile circuit control.
- Durable construction resists vibration, shock, thermoshock, moisture, and salt spray.
- Sealed with internal and external gasket panel seals for superior environmental protection.
- Visible with two embedded LEDs rated for 100,000 hours of operation.
- Designed for integration into Blue Sea Systems Contura Water Resistant Panels.
- Efficient 20A @ 12V / 15A @ 24V rating handles demanding loads.
- Compact size fits standard panel cutouts for easy installation.
- Guaranteed performance in harsh marine environments.
Specifications
| Product Specifications | |
|---|---|
| Brand | Blue Sea Systems |
| Actuator Color | Black |
| Action | SPDT ON-OFF-ON |
| Amperage Rating (12V) | 20A |
| Amperage Rating (24V) | 15A |
| Operating Temperature Range | -40°C to 85°C |
| LEDs | Dual embedded, 100,000 hour rated |
| Sealing | Internal and external gasket panel seal |
| Resistance | Vibration, shock, thermoshock, moisture, salt spray |
| Panel Cutout Size | Standard Contura size |
Who This Is For
Marine electricians and boat owners seeking a highly durable and reliable ON-OFF-ON switch for critical applications. Ideal for DIYers or professionals requiring robust environmental resistance for electrical circuits on vessels.
How It Compares
| Feature | Blue Sea 7931 Contura II SPDT ON-OFF-ON 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 direct sunlight?
While the dual embedded LEDs are rated for 100,000 hours, some users report they may be less visible in extremely bright direct sunlight. This is a common characteristic of many LED indicator lights in such conditions.
Is this switch truly waterproof?
The Blue Sea 7931 Contura II switch is designed with internal and external gasket seals and offers superior moisture and salt spray resistance, making it highly water-resistant. It is engineered for use in demanding marine environments.
Can I find this specific ON-OFF-ON SPDT configuration easily elsewhere?
While similar switch types are available, finding this exact Blue Sea Contura II ON-OFF-ON SPDT configuration with dual LEDs can sometimes be a challenge compared to more generic options, underscoring its specialized design.
Frequently Asked Questions
What is the amperage rating for the Blue Sea 7931 Contura II Switch?
The Blue Sea 7931 Contura II Switch is rated for 20 Amperes at 12 Volts and 15 Amperes at 24 Volts.
What does SPDT mean for this switch?
SPDT stands for Single Pole/Double Throw, meaning the switch controls one circuit (the pole) and can connect it to one of two possible output terminals (the throws). The ON-OFF-ON configuration allows for three states: circuit closed, circuit open, and circuit closed in an alternative configuration.
Can this switch be used for navigation lights?
Yes, the SPDT ON-OFF-ON configuration is well-suited for controlling navigation lights, especially if you need to select between different light combinations or have a separate function to switch them off.
What is the operating temperature range of this switch?
The operating temperature range for the Blue Sea 7931 Contura II Switch is -40°C to 85°C (-40°F to 185°F), ensuring reliable performance in extreme ambient conditions.
Is this switch waterproof or water-resistant?
This switch is engineered for significant water resistance with internal and external gasket seals, providing robust protection against moisture, spray, and salt. It is designed for use in harsh marine environments but should not be submerged for extended periods.
