Blue Sea Systems 187-Series Thermal Circuit Breaker, 90A, Panel Mount

Ensure robust electrical protection and simplified switching with the Blue Sea Systems 187-Series Thermal Circuit Breaker. Designed for challenging marine and vehicle environments, this 90 Amp, 48V DC maximum panel mount breaker combines essential circuit protection with a clear, single-lever operation. Its ignition-protected, waterproof design meets rigorous SAE J1171 standards, making it safe and reliable for gasoline-powered boats and other demanding applications. Upgrade your electrical system with dependable Blue Sea Systems protection today.

• Integrated Protection: Combines switching and circuit protection into a single device to streamline your electrical system.
• Enhanced Safety: Meets SAE J1171 external ignition protection requirements, ensuring safe installation aboard gasoline-powered boats.
• Trip-Free Design: Cannot be held 'ON' during a fault current condition, significantly enhancing safety.
• Marine-Grade Durability: Waterproof with an IP66 rating, providing reliable operation in harsh marine conditions.
• Effortless Operation: Features clear, single-lever operation and a large lever with vertical/horizontal orientation for easy indication of trip status.
• Simplified Installation: Recessed mounting holes provide a clean appearance, while the self-trimming, round case allows for easy installation with a standard hole saw.
• Robust Connections: Large clearance around 5/16" (M8) terminal studs accommodates heavy-gauge wire lugs, ensuring high-torque, secure electrical connections.
• High Interrupt Rating: Capable of interrupting 5,000 Amperes at 12V DC, 3,000 Amperes at 24V DC, and 1,500 Amperes at 42V DC.
• Wide Temperature Range: Operates reliably in extreme temperatures from -40°C to +85°C (-40°F to +185°F).
• Durable Construction: Housed in a robust thermoset polyester case for long-lasting performance.