Description
Blue Sea 2145 SPDT Contura Switch | Boat Supply Store
This Blue Sea Systems 2145 ML-Series Remote Control Contura Switch provides robust control for critical onboard electrical systems. Engineered for extreme marine environments, it exhibits resistance to vibration, shock, thermoshock, moisture, and salt spray, ensuring reliability in harsh conditions. Its Single Pole Double Throw (SPDT) configuration with a (ON) OFF (ON) momentary action is ideal for applications requiring precise switching between two circuits, such as controlling bilge pumps with manual override or managing lighting circuits.
Key Features
- SPDT Configuration for flexible circuit management
- (ON) OFF (ON) Momentary Action for precise control
- Vibration Resistant construction for rough seas
- Shock Resistant to endure impacts
- Thermoshock Resistant for temperature fluctuations
- Moisture Resistant sealing against water ingress
- Salt Spray Resistant for coastal operation
- UL 1500 & SAE J1171 Certified for safety and marine standards
Specifications
| Product Specifications | |
|---|---|
| Brand | Blue Sea Systems |
| Model | 2145 ML-Series |
| Configuration | SPDT |
| Action | (ON) OFF (ON) Momentary |
| Vibration Resistance | Yes |
| Shock Resistance | Yes |
| Thermoshock Resistance | Yes |
| Moisture Resistance | Yes |
| Salt Spray Resistance | Yes |
| Safety Certifications | UL 1500, SAE J1171 |
| Proposition 65 Warning | Yes (DEHP) |
Who This Is For
Marine electricians and boat owners requiring a highly durable and versatile switch for controlling essential electrical circuits in demanding maritime applications. DIY enthusiasts seeking a reliable, marine-grade component for custom installations or upgrades.
How It Compares
| Feature | Blue Sea 2145 SPDT Contura Switch | Competitor |
|---|---|---|
| Pole/Throw | SPDT | SPST, SPDT, DPDT, SPST, SPDT |
| Action | (ON) OFF (ON) Momentary | Latching, Momentary, Latching, Momentary |
| Vibration Resistance | Yes | Yes, Yes |
| Shock Resistance | Yes | Yes, Yes |
| Thermoshock Resistance | Yes | Yes, Not Specified |
| Moisture Resistance | Yes | IP66/IP67 rated, Yes |
| Salt Spray Resistance | Yes | Yes, Not Specified |
Common Concerns Answered
Why is this switch more expensive than generic alternatives?
The Blue Sea 2145 switch utilizes premium materials and advanced sealing technologies to achieve superior resistance to vibration, shock, thermoshock, moisture, and salt spray, making it specifically engineered for the harsh marine environment, justifying its investment for critical applications.
Can I find a switch with equivalent environmental ratings and a momentary action from competitors?
While some competitors offer momentary action and environmental resistance, the specific combination of robust marine-grade durability and the precise (ON) OFF (ON) momentary action found in the Blue Sea 2145 is a distinguishing factor, ensuring peak performance in challenging conditions.
What differentiates the (ON) OFF (ON) momentary action?
The (ON) OFF (ON) momentary action allows for temporary engagement of a circuit when the switch is pushed and released, returning to the OFF position, and also provides a central OFF position with the ability to engage either of the two ON states by pushing and holding.
Frequently Asked Questions
What is the pole/throw configuration of the Blue Sea 2145 switch?
The Blue Sea 2145 switch features a Single Pole Double Throw (SPDT) configuration.
What is the action of the Blue Sea 2145 switch?
The switch has an (ON) OFF (ON) momentary action, allowing for temporary circuit activation.
What are the environmental resistances of the Blue Sea 2145 switch?
This switch is resistant to vibration, shock, thermoshock, moisture, and salt spray.
Is the Blue Sea 2145 switch suitable for marine environments?
Yes, its robust construction and resistance to various environmental factors make it ideal for marine use.
What is the purpose of a (ON) OFF (ON) switch?
An (ON) OFF (ON) switch is typically used to select between two different circuits or functions, with a central OFF position for complete isolation, and offers momentary engagement for temporary control.
