The Quick eplacement fuse is an essential component for bow and stern thruster installations, protecting the motor from overcurrent damage. Compatible with Quick FBT fuse bases. Available in sizes from 125A to 500A. Key Features Rating: 125 - 500 A CNL Function: Overcurrent protection for bow and stern thruster motors Compatible With: Quick FBT fuse bases Available Ratings: 125A, 130A, 150A, 175A, 200A, 225A, 250A, 275A, 325A, 350A, 400A, 500A