Contura SPDT Momentary Off-On Switch

A 'momentary Off-On' switch means the electrical contact is made and held only while the switch is actuated (pressed or toggled). As soon as pressure is released, the switch automatically returns to its 'Off' position (stop), thus breaking the circuit. This allows for temporary and controlled activation.

SPDT stands for 'Single Pole Double Throw'. This indicates that the switch has a single input circuit (pole) that can be connected to one of two possible outputs (double throw). In the case of a momentary Off-On SPDT switch, it connects the input to a specific output while actuated, then returns to the disconnected state or a default output.

Yes, the BLUE SEA Contura 8233-BSS switch is specifically designed for marine applications. Its design is suited to nautical environments, providing the reliability and durability required for conditions encountered at sea.

Advantages of a momentary SPDT switch include:

Precise control: Enables temporary and controlled activation of a function.Safety: Automatic return to the 'Off' position prevents prolonged unintended activations.Versatility: The SPDT configuration allows switching an input circuit to one of two outputs, useful for functions requiring selection between two states or directions (e.g., up/down, forward/reverse for pulse control).

This switch belongs to BLUE SEA's Contura series. This series is known for its robust design and standard integration in marine dashboards and control panels.

This switch is ideal for applications requiring a temporary and precise control pulse. This includes, but is not limited to, controlling horns, timed bilge pumps, trim motors, windlasses (for momentary actions), or any function requiring brief activation and automatic reset.

Thanks to its 'momentary' function, the switch automatically returns to the 'Off' position as soon as pressure is released. This ensures no function is activated longer than necessary, preventing any prolonged unintentional activation and contributing to equipment safety.

BLUE SEA Contura series switches are designed for marine environments, meaning they are resistant to water spray and ambient moisture. Although not specified as submersible, they are suitable for use in control panels exposed to marine elements.

The main difference lies in their behavior after activation:

A momentary switch (such as the 8233-BSS) automatically returns to its initial position (Off) as soon as pressure is released. A latching switch remains in the position it was set to (On or Off) until it is actuated again to change state.

As a SPDT (Single Pole Double Throw) switch, it is designed to switch an input circuit to one of two possible outputs. This means it can route current from a source to one of two separate circuits, but cannot control two circuits independently and simultaneously in a standard 'On/Off' manner.

BLUE SEA Contura series products are generally made with UV-resistant materials to ensure durability and prevent degradation from prolonged sun exposure in marine environments.

Although a specific wiring diagram is not included in the product description, SPDT switches have standardized wiring. It is recommended to consult BLUE SEA's general installation instructions or hire a professional for wiring if you are not familiar with marine electrical installations.

Installation is designed to be straightforward, particularly due to its standardized integration into Contura series marine dashboards and control panels. It typically involves cutting a standard-sized hole and connecting the appropriate wires to the switch terminals. Basic knowledge of marine electrical systems is recommended.

The BLUE SEA Contura series switches are designed to fit standard-sized cutouts, common in the marine industry for control panels. It is recommended to verify the exact cutout specifications for a perfect fit, although the Contura design aims for simplified installation.

Yes, in a marine environment, it is crucial to use appropriately gauged cables, watertight or insulated connectors, and to ensure all connections are protected against corrosion and moisture. It is also important to comply with current marine electrical safety standards.

Yes, if your existing switch is also from BLUE SEA's Contura series, the 8233-BSS model is very likely to be a direct replacement, as the Contura series is designed for modularity and standardized mounting dimensions.

BLUE SEA Contura series switches are generally designed to be compatible with standard 12V and 24V DC marine electrical systems. It is always recommended to check the rated current capacity of the switch to ensure it matches your circuit's requirements.

Yes, BLUE SEA's Contura series is designed to be modular. This switch is compatible with most Contura mounting brackets, frames, and interchangeable labels, allowing customization and seamless integration into your dashboard.

Although designed for marine applications, this switch can technically be used in other environments requiring a robust, moisture-resistant SPDT momentary switch. However, it is optimized for the specific conditions of the marine environment.

The Contura series switches from BLUE SEA are designed for standard marine electrical systems, which typically operate at 12V or 24V DC. For precise information on supported voltage and maximum current, consult the full product datasheet or the general specifications of the Contura series.