Description
Blue Sea 7933 Contura II SPDT Switch | Boat Supply Store
Engineered for demanding marine environments, this switch provides robust control for critical onboard electrical functions. It features a Single Pole, Double Throw (SPDT) configuration with a momentary (ON)-OFF-(ON) action, capable of handling 20A at 12V or 15A at 24V. The internal and external gasket seals offer superior protection against moisture and salt spray, making it an essential component for systems like bilge pumps, running lights, or deck washdowns on offshore fishing vessels operating out of Galveston.
Key Features
- Durable SPDT (Single Pole, Double Throw) action for versatile circuit control.
- Momentary (ON)-OFF-(ON) action enables precise control of temporary functions.
- Resistant to vibration, shock, thermoshock, moisture, and salt spray for longevity.
- Sealed with internal and external gasket panel seals for superior water ingress protection.
- Illuminated with an integrated LED rated for 100,000 hours of operation.
- Reliable performance up to 20A @ 12V and 15A @ 24V.
- Certified to UL 1500 and SAE J1171 marine standards for safety and compliance.
- Contura II actuator design ensures ergonomic and tactile operation.
Specifications
| Product Specifications | |
|---|---|
| Switch Type | Contura II |
| Actuator Color | Black |
| Pole/Throw | SPDT |
| Action | (ON)-OFF-(ON) |
| Max Amperage @ 12V | 20A |
| Max Amperage @ 24V | 15A |
| Operating Temperature Range | -40° C to 85° C |
| Seals | Internal and external gasket panel seal |
| LED Lighting | Yes (100,000 hours) |
| Mounting Type | Panel Mount |
Who This Is For
Marine enthusiasts and boat owners requiring a high-reliability, environmentally resistant switch for critical electrical system control. Marine electricians will find this suitable for installations demanding robust performance and adherence to safety certifications.
How It Compares
| Feature | Blue Sea 7933 Contura II SPDT 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 illumination excessively bright for nighttime navigation?
While generally appreciated, some users report the LED illumination can be perceived as bright in extremely dark conditions. Consider placement in relation to your primary navigation displays.
What if I need to replace just the actuator?
Replacement actuators can occasionally be challenging to source precisely. It's advisable to keep any spare parts or note the exact model number for future reference.
How does the durability compare to other Contura switches?
The Contura II series, including this model, is recognized for its superior durability and resistance to harsh marine environments, making it a benchmark for quality in switch technology.
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 and 15A at 24V.
What type of switch action does the Blue Sea 7933 Contura II Switch have?
The Blue Sea 7933 Contura II Switch features a momentary (ON)-OFF-(ON) action, also known as Single Pole, Double Throw (SPDT).
Is the Blue Sea 7933 Contura II Switch waterproof or water-resistant?
This switch is designed to be water-resistant, featuring internal and external gasket panel seals to protect against moisture and salt spray.
What are common applications for the Blue Sea 7933 Contura II Switch?
Common applications include controlling windlasses, trim tabs, powered hatches, bilge pumps, and other critical electrical circuits where reliable, momentary activation is required.
What is the temperature range for the Blue Sea 7933 Contura II Switch?
The operating temperature range for the Blue Sea 7933 Contura II Switch is -40°C to 85°C.
