Sinofuse RS306-01-S5P High Speed Fuse Series, 32-400A, 1250VAC/1000VDC
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The Sinofuse RS306-01-S5P is a bolted high speed fuse series covering rated currents from 32 A to 400 A. The series is rated for AC 1250 V under IEC conditions and DC 1000 V under UL conditions, with an aR utilization category for partial-range protection. The manufacturer specifies low I²t, strong current-limiting capability, and high breaking capacity for this fuse family.
| Series | RS306-01-S5P |
| Rated Current Range | 32 A to 400 A |
| Rated Voltage | AC 1250 V (IEC) / DC 1000 V (UL) |
| Utilization Category | aR |
| Breaking Capacity | AC 100 kA / DC 50 kA, 10 ms time constant |
| Performance Reference | UL 248.13 / IEC 60269-4 |
| Compliance / Certification | RoHS, CE, UL |
| Mounting | M8 threaded stud; recommended insertion 8 mm, maximum insertion 9 mm; recommended nut tightening torque 10 ±1 N·m |
| Minimum Protection Range | ≥8In |
RS306-01-S5P Model Selection
| Model | Rated Current / Pre-Arcing I²t / Total Clearing I²t / Power Loss at 0.5In / In |
| RS306-01-S5P-32A1250V | 32 A / 73 A²s / 450 A²s / 2 W / 10 W |
| RS306-01-S5P-40A1250V | 40 A / 138 A²s / 850 A²s / 2.3 W / 12 W |
| RS306-01-S5P-50A1250V | 50 A / 255 A²s / 1,580 A²s / 2.7 W / 14 W |
| RS306-01-S5P-63A1250V | 63 A / 435 A²s / 2,660 A²s / 3.5 W / 18 W |
| RS306-01-S5P-80A1250V | 80 A / 770 A²s / 4,730 A²s / 4.2 W / 22 W |
| RS306-01-S5P-100A1250V | 100 A / 1,250 A²s / 7,620 A²s / 5.4 W / 28 W |
| RS306-01-S5P-125A1250 | 125 A / 2,220 A²s / 13,600 A²s / 6.3 W / 33 W |
| RS306-01-S5P-160A1250V | 160 A / 4,200 A²s / 25,600 A²s / 7.6 W / 40 W |
| RS306-01-S5P-200A1250V | 200 A / 6,800 A²s / 42,000 A²s / 9.5 W / 50 W |
| RS306-01-S5P-250A1250V | 250 A / 12,500 A²s / 76,500 A²s / 11.5 W / 60 W |
| RS306-01-S5P-315A1250V | 315 A / 25,200 A²s / 155,000 A²s / 13 W / 68 W |
| RS306-01-S5P-350A1250V | 350 A / 35,200 A²s / 216,000 A²s / 14 W / 73 W |
| RS306-01-S5P-400A1250V | 400 A / 50,500 A²s / 309,000 A²s / 15 W / 82 W |
The manufacturer states that the listed I²t values are nominal under AC 1390 V, 50 kA test conditions.
Verified applications for the RS306-01-S5P series include rail transit, electric vehicles, marine equipment, 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 the Sinofuse RS306-01-S5P high speed fuse series. Buyers can compare the verified current ratings and I²t values above when preparing procurement requirements or reviewing replacement options.
Send the required RS306-01-S5P model, quantity, and application requirements when requesting an RFQ. Most qualified RFQs receive a response or quote within 12 hours.
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