Sierra FS84240 MRBF Single Mounting Bar The Sierra FS84240 MRBF Single Mounting Bar is the perfect option for tight spaces to provide high current protection. This compact mounting bar is designed for DC Main, bow thruster, inverter, and windlass circuit protection. It has a bolt-down design for high-vibration applications and features a protective insulating cap to prevent accidental shorts. Features Ignition protected Bolt-down design for high-vibration applications Standard isolated M8 stainl