Sinofuse RS306-2-T5Z-400A1250V High-Speed Fuse, 400A, AC1250V
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Sinofuse RS306-2-T5Z-400A1250V is a 400A AC1250V high-speed fuse with an aR utilization category for partial-range protection. This exact model has a verified pre-arcing I²t of 32,000 A²s and total I²t of 210,000 A²s at 1250VAC.
| Model | RS306-2-T5Z-400A1250V |
| Rated Current | 400 A |
| Rated Voltage | AC1250 V |
| Utilization Category | aR |
| Breaking Capacity | AC 100 kA |
| Pre-Arcing I²t at 1250VAC | 32,000 A²s |
| Total I²t at 1250VAC | 210,000 A²s |
| Power Loss at 0.5In | 19 W |
| Power Loss at In | 100 W |
| Mounting Bolt | M10 |
| Installation Torque | 32 ± 1 N·m |
Sinofuse identifies applications for this fuse series in rail transit, electric vehicles, marine equipment, energy storage systems, and power systems, including short-circuit backup protection for conductors and other components or equipment.
Apexon Supply provides B2B sourcing and replacement support for Sinofuse high-speed fuses, helping procurement and maintenance teams review verified specifications and technical alignment.
Request a B2B quote for Sinofuse RS306-2-T5Z-400A1250V by submitting the model, required quantity, and application requirements for procurement review.
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