Description
Blue Sea Systems Class T Fuse 400A – 5121
The Blue Sea Systems Class T Fuse 400A is designed for marine and mobile electrical circuit protection.
- Extremely fast short-circuit response
- 20,000A Interrupt Capacity (AIC)
- Designed for high-current DC circuit protection
- Compatible with Class T fuse installations when matched to the correct circuit rating
- Provides replaceable over-current protection for properly engineered marine circuits
For best results, match the fuse or breaker rating to the protected conductor and load, and confirm voltage, interrupt rating, mounting clearance, and terminal requirements before installation.
Specifications
- Amperage: 400A
- Maximum Voltage: 125V DC
- Stud Size: 3/8 in
- Interrupt Capacity: 20,000A @ 125V DC
- Weight: 0.30 lb (0.14 kg)
- Compatible Blue Sea Systems Class T Fuse Block: 5502100 (225–400A)
- Fuse Body Size: Class T fuse format; approx. 6.2 cm L × 2.7 cm W × 2.7 cm H
- Manufacturer: Blue Sea Systems
- Part Number: 5121



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