Circuit breaker series 285 - Surface mount 80 A

The BLUE SEA 285 series circuit breaker is an electrical protection device designed for marine environments. It protects circuits from overcurrent and short circuits, preventing damage to equipment and fire hazards. This specific model is an 80-amp circuit breaker.

An 80-amp circuit breaker is used to protect electrical circuits powering high-current equipment such as inverters, bow thrusters, windlasses, or large-capacity battery charging systems aboard a boat. It provides automatic shutdown in case of overload.

This circuit breaker is designed for surface mounting. This means it is fixed directly to a wall or panel using screws, without requiring any cutouts in the mounting surface for installation. The connection terminals are then accessible for wiring.

Yes, the BLUE SEA 285 series circuit breaker is specifically designed for marine applications. It is made with corrosion-resistant materials and is built to operate reliably under the demanding conditions encountered aboard boats, such as humidity and vibration.

The BLUE SEA 285 series circuit breaker is designed for direct current (DC) systems and can handle voltages up to 48V DC. It is commonly used in 12V, 24V, and 48V systems on vessels.

Yes, the BLUE SEA 285 series circuit breaker is "ignition protected" (Ignition Protected) in accordance with SAE J1171. This means it can be safely installed in a boat engine compartment where gasoline vapors may be present, without risk of causing an explosion.

This circuit breaker is a manually resettable model. After tripping due to overload or short circuit, simply press the reset button to restore power to the circuit once the cause of the trip has been identified and corrected.

It is essential to use cables of the appropriate cross-section for the 80-ampere load and circuit length, in accordance with marine standards (e.g., ABYC). The circuit breaker terminals are typically threaded studs designed for robust cable lugs, ensuring a secure and low-resistance connection.

The interrupting rating (AIC - Ampere Interrupting Capacity) of the Blue Sea Systems 285 series is 3000 amperes at 48V DC. This value indicates the maximum current it can safely interrupt during a short circuit without being damaged.

Yes, a circuit breaker like this one can replace a fuse of the same rating (80 A) for protecting a circuit. The main advantage is that it can be manually reset after tripping, unlike a fuse which must be replaced.

Yes, this circuit breaker is fully compatible with 12V DC and 24V DC marine electrical systems. Its maximum capacity of 48V DC makes it versatile for various onboard voltage configurations.

Installing this circuit breaker typically requires standard marine electrical tools such as screwdrivers, wire strippers, crimping pliers for cable terminals, and possibly a drill for mounting holes. No specialized tools are needed.

Blue Sea Systems 285 series circuit breakers are designed to operate across a wide temperature range typical of marine environments, generally from -40°C to +85°C. This ensures reliability in various climatic conditions.

The breaker’s amperage rating must match the maximum current draw of the equipment or circuit it protects, while remaining below the wire’s current-carrying capacity. For this model, it is 80 amperes, making it suitable for high loads. It is critical to consult your equipment specifications and wire gauge sizing tables.

The connection terminals of this circuit breaker are robust threaded studs. Although they are exposed for cable connections, the circuit breaker itself is designed to be weather-resistant. It is recommended to use insulated terminals and ensure that connections are tight and protected from excessive moisture.

Yes, the reset button on the BLUE SEA 285 series circuit breaker also serves as a visual indicator. When in the "ON" position, the button is recessed. If it has tripped, the button pops out, clearly indicating that the circuit is open and the breaker has acted to protect the system.