Description
Blue Sea 7935 Contura II DPST Switch OFF-(ON) | Boat Supply Store
Engineered for marine environments, this switch provides reliable actuation for critical onboard systems. Its robust construction resists vibration, shock, thermoshock, moisture, and salt spray, ensuring consistent performance in demanding conditions. Rated for 20A at 12V or 15A at 24V, it's ideal for applications such as horn activation or powering windshield wipers on offshore fishing vessels.
Key Features
- Robust DPST configuration for comprehensive circuit control.
- Momentary OFF-(ON) action ideal for intermittent functions.
- Extreme environmental resistance: vibration, shock, thermoshock, moisture, and salt spray.
- Superior panel sealing with internal and external gasket design.
- Exceptional LED lifespan rated for 100,000 hours.
- Dependable operation across a wide temperature range: -40°C to 85°C.
- Marine-grade construction ensures longevity in harsh saltwater conditions.
- Certified for reliable electrical switching on all vessel types.
Specifications
| Product Specifications | |
|---|---|
| Switch Type | DPST (Double Pole, Single Throw) |
| Actuation | OFF-(ON) Momentary |
| Rating @ 12V DC | 20A |
| Rating @ 24V DC | 15A |
| Environmental Resistance | Vibration, Shock, Thermoshock, Moisture, Salt Spray |
| Panel Seal | Internal and External Gasket |
| Operating Temperature | -40°C to 85°C |
| LED Lifespan | 100,000 Hours |
| Color | Black |
Who This Is For
Marine enthusiasts and professional builders requiring durable, environmentally-sealed electrical switches for critical boat functions. Ideal for DIYers and those undertaking complex marine electrical system installations.
How It Compares
| Feature | Blue Sea 7935 Contura II DPST Switch OFF-(ON) | Competitor |
|---|---|---|
| Action | OFF-(ON) | OFF- |
| Pole/Throw | DPST | DPST |
| Max Amperage @ 12V | 20A | 20A, 20A |
| Max Amperage @ 24V | 15A | 10A, 10A |
| Environmental Resistance | Vibration, shock, thermoshock, moisture, salt spray resistant | Water resistant, Marine grade, sealed |
| Panel Seal | Internal and external gasket | Internal O-ring, Internal and external gaskets |
Common Concerns Answered
Is the OFF-(ON) momentary action suitable for continuous operation?
The OFF-(ON) momentary action requires continuous pressure for activation, making it ideal for intermittent functions like horn blasts or momentary wiper engagement. For continuous operation, a maintained switch would be more appropriate.
Will this switch mount easily into any panel?
This switch features standard Contura switch panel cutout dimensions, ensuring straightforward installation in most marine panels. For non-standard applications, using Blue Sea Systems' dedicated mounting solutions is recommended for a secure fit.
How does the durability of this switch compare to generic options?
The Blue Sea 7935 Contura II switch significantly outperforms generic switches due to its marine-specific design, featuring superior resistance to vibration, shock, thermoshock, moisture, and salt spray, which are critical for longevity in harsh saltwater environments.
Frequently Asked Questions
What is the amperage rating for the Blue Sea 7935 Contura II Switch?
The Blue Sea 7935 Contura II Switch is rated for 20A at 12V DC and 15A at 24V DC.
What type of switch action does the Blue Sea 7935 have?
The Blue Sea 7935 features an OFF-(ON) momentary switch action, meaning it returns to the OFF position when pressure is released.
Is the Blue Sea 7935 switch waterproof or water-resistant?
The Blue Sea 7935 switch is designed with vibration, shock, thermoshock, moisture, and salt spray resistance, featuring internal and external gasket panel seals for significant water resistance in marine environments.
What are the operating temperature limits for this switch?
This switch operates reliably within a temperature range of -40°C to 85°C.
Can this switch be used for high-amperage applications?
With ratings of 20A at 12V and 15A at 24V, this switch is suitable for many common high-amperage onboard circuits, such as bilge pumps or lighting systems, but always consult wiring diagrams for specific application loads.
