Blue Sea 187 Circuit Breaker – Surface Mount 12V/24VThe Blue Sea 187 Series Surface Mount Circuit Breaker is a heavy duty, ignition protected solution for 12V and 24V DC marine systems. Designed for high current protection, it features a thermal trip mechanism with manual reset and switchable functionality, ideal for battery and inverter protection. Its rugged, surface mount design allows for easy installation in tight spaces, and it meets ABYC and SAE standards for safe use in engine compartments and

This durable

Featuring a robust aluminium vane and low‑friction sapphire bearing

making it ideal for use on exposed decks

professional installation

boating and rigging maintenance

Intermittent use (500 amps for 10 seconds)

and off-grid applications

Integrated grab rails and full-width handles for easier transport even when fully loaded

Sheet leads and control lines

with self-lubricating Delrin material using water as a natural lubricant for consistent performance in marine environments

The Harken 2644 is an excellent choice for upgrading sail handling systems with lightweight

Strong and reliable construction