Description
Blue Sea 7933 SPDT Contura II Switch | Boat Supply Store
Engineered for demanding marine applications, this switch effectively manages critical electrical functions, preventing accidental activation with its momentary (ON)-OFF-(ON) action. Rated for 20A at 12V and 15A at 24V, its robust construction ensures reliable operation across a wide -40°C to 85°C temperature range. Ideal for controlling bilge pumps, navigation lights, or electronic equipment on offshore fishing vessels operating in Gulf Coast waters.
Key Features
- Durable SPDT action for versatile circuit control.
- Reliable momentary ON, OFF, momentary ON functionality.
- Marine-grade Contura II black actuator resists harsh conditions.
- Sealed for superior water and environmental resistance.
- Integrated LED illumination rated for 100,000 hours.
- Vibration and shock resistant for secure operation.
- Easy installation into Contura panels.
- Safety certified to UL 1500 and SAE J1171 standards.
Specifications
| Product Specifications | |
|---|---|
| Type | Contura II Switch |
| Action | (ON)-OFF-(ON) |
| Pole/Throw | SPDT |
| Actuator Color | Black |
| Amperage Rating (12V) | 20A |
| Amperage Rating (24V) | 15A |
| Operating Temperature | -40°C to 85°C |
| Seals | Internal and external gasket panel seal |
| LED Lighting | Yes |
| LED Lifespan | 100,000 hours |
Who This Is For
Marine enthusiasts and boat owners requiring a robust, water-resistant switch for critical systems. Marine electricians seeking a dependable component for AC/DC circuit control on vessels.
How It Compares
| Feature | Blue Sea 7933 SPDT Contura II Switch | Competitor |
|---|---|---|
| Action | (ON)-OFF-(ON) | (ON)-OFF-(ON), (ON)-OFF- |
| Pole/Throw | SPDT | SPDT, SPDT |
| Max Amperage @ 12V | 20A | 20A, 20A |
| Max Amperage @ 24V | 15A | 10A, 10A |
| Seals | Internal and external gasket panel seal | Internal and external gasket panel seal, Internal and external gasket panel seal |
| Operating Temperature Range | -40° C to 85° C | null, null |
| LED Lighting | Yes (100,000 hours) | null, null |
Common Concerns Answered
Is the LED lighting too bright?
Some users find the LED illumination bright in exceptionally dark conditions. The integrated LED provides 100,000 hours of rated illumination, which is a standard for marine-grade visibility.
What if I lose or damage the actuator?
While exact replacement actuators can occasionally be difficult to source, the durable Contura II design prioritizes longevity and robust performance over easily replaceable parts.
Is this switch expensive?
While the price may seem higher for budget-conscious buyers, the superior long-term durability, water resistance, and reliable performance inherent in Blue Sea Systems products represent a sound investment for critical marine electrical systems.
Frequently Asked Questions
What is the amperage rating for the Blue Sea 7933 Contura II Switch?
The Blue Sea 7933 Contura II Switch is rated for 20A at 12V DC and 15A at 24V DC.
What type of switch action does the Blue Sea 7933 Contura II Switch have?
The Blue Sea 7933 Contura II Switch features a (ON)-OFF-(ON) momentary action, meaning it returns to the OFF position when pressure is released from the ON positions.
Is the Blue Sea 7933 Contura II Switch waterproof or water-resistant?
The Blue Sea 7933 Contura II Switch is water-resistant, featuring internal and external gasket panel seals designed to protect against moisture and salt spray common in marine environments.
What are common applications for the Blue Sea 7933 Contura II Switch?
Common applications include control of windlasses, trim tabs, powered hatches, anchor washdown pumps, and other intermittent duty circuits where a momentary ON function is required.
What is the temperature range for the Blue Sea 7933 Contura II Switch?
The Blue Sea 7933 Contura II Switch is designed to operate reliably within a temperature range of -40°C to 85°C.
