Blue Sea Systems 187 Series Thermal Circuit Breaker, 50A, 48V DC Surface Mount

Ensure superior electrical system protection and reliability on your vessel with the Blue Sea Systems 187 Series Thermal Circuit Breaker. Engineered for the demanding marine environment, this 50 Amp surface mount breaker combines robust circuit protection with convenient switching in a single device. Its ignition-protected design makes it unequivocally safe for installation aboard gasoline-powered boats, providing peace of mind. Upgrade to Blue Sea Systems quality for uncompromising safety and performance.

Key Specifications & Benefits:

• 50 Amp / 48 Volt DC Rating: Provides heavy-duty overcurrent protection for demanding marine electrical systems.
• SAE J1171 Ignition Protected: Guarantees safe operation and compliance on gasoline-powered boats, mitigating fire hazards.
• IP66 Waterproof Rating: Protected against powerful water jets and heavy seas, ensuring reliable function in harsh marine conditions.
• "Trip Free" Design: Cannot be held 'ON' during a fault current condition, enhancing safety by preventing re-engagement until the fault is cleared.
• Clear, Single Lever Operation: Offers easy visibility and indication of the trip status for quick diagnostics.
• Robust 5/16"-18 Terminal Studs: Engineered to accept heavy gauge wire lugs and provide secure, high-torque connections.
• High Interrupt Rating: Safely handles high fault currents—5,000A @12V DC, 3,000A @24V DC, and 1,500A @48V DC—to prevent damage to your electrical system.
• Durable Thermoset Polyester Case: Offers excellent resistance to heat, impact, and corrosion, ensuring long-term marine reliability.
• Wide Operating Temperature Range: Functions flawlessly from -25°C to +82°C, ensuring consistent performance across varied environmental conditions.
• Recessed Mounting Holes: Facilitate a clean and professional surface mount installation.

California Proposition 65 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.