Blue Sea 7287 C-Series Triple Pole Circuit Breaker – 50A

The Blue Sea Systems 7287 C-Series Triple Pole Circuit Breaker (50A) is a heavy-duty, ignition-protected breaker designed to provide reliable circuit protection for AC and DC marine electrical systems. Built for harsh marine environments, this 50-amp triple pole breaker offers dependable overcurrent protection while serving as a switching mechanism for critical onboard systems.

Part of Blue Sea’s trusted C-Series line, the 7287 features a robust, corrosion-resistant design and is engineered to meet stringent marine standards. Its triple pole configuration makes it ideal for three-phase AC systems or applications requiring simultaneous interruption of multiple conductors.

• Triple Pole Protection: The "Common Trip" feature ensures that if any one of the three poles detects a fault, all three poles will trip together. This is critical for preventing "back-feeding" in 240V systems.

• Magnetic-Hydraulic Technology: Provides precise current sensing and allows the breaker to be reset immediately after the fault is cleared, with no "cool down" period required.

• Large Terminal Studs: Equipped with 1/4"-20 tin-plated brass studs to ensure high-torque connections and maximum conductivity with heavy-gauge battery or shore power cables.

• Industry Standard Fit: Designed to fit all Blue Sea Systems C-Series 3-pole breaker panels and world-standard 19mm (0.75") wide mounting slots.

⚙️ Key Features

• 50 Amp rating

• Triple pole (3-pole) breaker design

• Combines circuit protection and switching

• Ignition protected — safe for installation aboard gasoline-powered boats

• Trip-free design — cannot be held “ON” during fault current condition

• Designed for both AC and DC applications

• Compatible with Blue Sea C-Series panels and mounting systems

In The Box

• 1 x Blue Sea 7287 Triple Pole Breaker

• 6 x Hex Nuts (1/4"-20)

• 6 x Lock Washers

• Note: Mounting screws for the panel face are typically not included (usually supplied with the breaker panel).

Safety Note

When installing a 50A triple-pole breaker for AC shore power, ensure your wire gauge is appropriately sized (typically 6 AWG for a 50A run) to prevent overheating and voltage drop.

🔌 Applications

• Three-phase AC systems

• Shore power distribution

• Inverters and generators

• Battery charger circuits

• High-load onboard equipment

• Marine electrical panels

🛡️ Marine-Grade Protection

The Blue Sea 7287 is engineered for reliability in saltwater environments. Its internal components are built to resist corrosion and vibration, ensuring long-term performance even in demanding offshore conditions. The trip-free mechanism enhances safety by preventing manual override during overload or short-circuit events.

Why Choose Blue Sea Systems?

Blue Sea Systems is widely trusted in the marine industry for producing high-quality, standards-compliant electrical components. The 7287 C-Series breaker delivers:

• Reliable overcurrent protection

• Clean integration into marine panels

• Durable construction for long service life

• Safe and compliant electrical installation

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Manufacturer : Blue Sea Systems
Manufacturer Part No : 7287
UPC : 632085072872