SINOFUSE RS306-3-T5Z-1000A1250V-D High-Speed Fuse, 1000A, AC1250V/DC1000V
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SINOFUSE RS306-3-T5Z-1000A1250V-D is a bolt-connected aR partial-range high-speed fuse rated 1000 A, with AC1250 V/DC1000 V voltage ratings. This size code 3 variant has a pre-arcing I²t of 455,000 A²s and total I²t of 2,000,000 A²s at AC1250 V.
| Model | RS306-3-T5Z-1000A1250V-D |
| Rated Current | 1000 A |
| Rated Voltage | AC1250 V / DC1000 V |
| Utilization Category | aR (UL) |
| Size Code | 3 |
| Pre-Arcing I²t at AC1250 V | 455,000 A²s |
| Total I²t at AC1250 V | 2,000,000 A²s |
| Power Loss | 134 W |
| Breaking Capacity | AC 100 kA / DC 50 kA (L/R=10–15 ms) |
| Recommended Installation | M10 bolt and nut |
| Recommended Torque | 21 N·m |
Typical applications: The RS306 series is intended for rail transit, electric vehicles, ships, energy storage systems, power systems, conductors, and other equipment requiring short-circuit overcurrent and backup protection.
Apexon Supply provides B2B sourcing and replacement support for SINOFUSE RS306-3-T5Z-1000A1250V-D. Use the verified electrical, I²t, mounting, and power-loss data for procurement review and technical alignment.
RFQ: Submit RS306-3-T5Z-1000A1250V-D, required quantity, and application requirements for procurement review. Most qualified RFQs receive a response or quote within 12 hours.
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