Blue Sea Systems 5189-BSS Terminal Fuse 250 Amp with Visual Indicator

The Blue Sea Systems 5189-BSS is a 250-amp terminal fuse designed for high-current DC applications in marine electrical systems. This ignition-protected fuse provides reliable overcurrent protection for demanding equipment such as inverters, windlasses, and bow thrusters.

Key Features:

• 250-amp rating with pink color coding for easy amperage identification
• Clear inspection window provides visual indication of blown fuse condition
• Interrupt rating meets ABYC (American Boat and Yacht Council) requirements for DC main circuit protection
• Ignition protected design for safe use in marine environments
• Requires a terminal fuse block for installation—not designed for direct battery terminal mounting

This terminal fuse is an essential safety component for protecting high-amperage circuits in marine electrical systems. The clear window design allows for quick visual inspection without removing the fuse, while the color-coded housing helps prevent installation errors when multiple fuse ratings are used in the same system.