Blue Sea 187-Series Circuit Breaker Panel Mount.

Blue Sea Systems 187-Series Circuit Breakers

The Blue Sea Systems 187-Series Circuit Breakers are heavy-duty, thermal circuit protection devices suitable for 25 to 200 Amp loads. Designed as a drop-in replacement for earlier models, these circuit breakers combine switching and circuit protection into a single, rugged, weather-resistant unit. They are ideal for marine, automotive, and industrial applications, especially where circuit protection and switching are both required.

Key Features:

• Combines switching and circuit protection in one device

• Manual trip and reset functions for circuit isolation

• "Trip Free" mechanism prevents the breaker from being held in the "ON" position after fault

• Waterproof, with IP66 rating for heavy seas or exposure to moisture

• Recessed mounting holes for a clean appearance

• Heavy-gauge wiring capability with large clearance around terminal studs

• High torque terminals (5/16" M8) for secure connections

• Easy-to-use single lever operation

• Ignition protected—compliant with SAE J1171

• Suitable for 25A to 200A applications, with interrupt capacities up to 5000A at 14V DC

Model Range & Specifications:

Typical Use:

These circuit breakers are well-suited for marine, RV, and industrial DC installations where reliable overload and fault protection are critical. They provide safe, switchable circuit interruption with a clean, professional appearance.