Blue Sea Systems 5117BSS Class T Fuse 225 Amp 300V DC Bolt-On

The Blue Sea Systems 5117BSS is a Class T (JJN) bolt-on fuse rated for 225 amps at 300 volts DC. Class T fuses are high-performance, current-limiting fuses designed to protect electrical systems in marine, RV, and other DC applications where fast-acting overcurrent protection is critical.

Key Features:

• 225 amp current rating with 300V DC voltage rating
• Class T (JJN) current-limiting design for superior circuit protection
• Bolt-on connection style for secure, vibration-resistant installation
• Fast-acting response to overcurrent conditions
• High interrupting rating for demanding electrical systems
• UL recognized component for safety compliance

Class T fuses provide extremely fast current-limiting action, which helps protect expensive inverters, battery banks, and other critical electrical components from short-circuit damage. The bolt-on design ensures a solid mechanical and electrical connection, making this fuse ideal for high-current marine and mobile power systems where reliability is paramount.