Blue Sea Systems
Blue Sea 5119 300A Class T Fuse
Blue Sea 5119 300A Class T Fuse
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Open the Power Calculator →Blue Sea 5119 — 300A Class T Fuse (A3T)
The actual replacement fuse for a Class T fuse block. 300A-rated for 2000W-3000W inverter installations.
Key Features
- 300A continuous rating — sized for 2500W-3000W inverters at 12V
- Class T fuse class — fastest-acting high-current fuse available
- A3T form factor — fits Blue Sea 5502100 and other Class T blocks
- 200,000 AIC (Amp Interrupting Capacity) — highest in the industry
When You Need This
If you installed the Blue Sea 5502100 Class T block on your inverter install, you also need to put an actual fuse in it. The 300A size matches a 2500-3000W inverter at 12V (e.g., Victron Phoenix 12/1200, Renogy 3000W, MultiPlus 12/2000).
Pairs Well With
- Blue Sea 5502100 Class T Fuse Block (pair with the fuse)
- 2000-3000W inverters (Samlex PST-2000 / Xantrex Freedom)
- Renogy 12V 200Ah LiFePO4 Battery (common bank at this fuse rating)
- Renogy Bus Bar (distribute downstream loads)
Need help sizing or wiring? Use our Power Calculator to size your battery bank, then the System Build Helper to plan the full install.
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