SINOFUSE RS306-01-T5Z Bolt-Connected High-Speed Fuse Series, 32–400A, AC1250V/DC1000V
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SINOFUSE RS306-01-T5Z is a bolt-connected high-speed fuse series for partial-range protection, covering 13 verified rated-current variants from 32A to 400A. The series is rated AC1250V under IEC requirements and DC1000V under UL requirements and uses the aR utilization category. Published breaking capacity is AC 100kA and DC 50kA with a 10ms DC time constant. All included models use M8 mounting bolts with a recommended installation torque of 11 N·m. This series page organizes the exact current-rated models, I²t characteristics and power-loss data for technical comparison, replacement review and B2B procurement.
RS306-01-T5Z Series Overview
The RS306-01-T5Z family provides rated-current options at 32A, 40A, 50A, 63A, 80A, 100A, 125A, 160A, 200A, 250A, 315A, 350A and 400A. The manufacturer references UL 248.13 and IEC 60269-4 for performance, with structure and performance specified to IEC 60269 and UL 248. RoHS, CE and UL are identified for the series. Electrical characteristics that vary by model include pre-arcing I²t, clearing I²t and power loss at 0.5In and In. Published I²t data is based on an AC1390V, 50kA test condition.
Technical Specifications
| Specification | Series Data |
|---|---|
| Product Type | Bolt-connected high-speed fuse |
| Rated Voltage | AC1250V (IEC) / DC1000V (UL) |
| Rated Current Range | 32A–400A |
| Utilization Category | aR |
| Breaking Capacity | AC 100kA / DC 50kA, DC time constant 10ms |
| Performance Reference | UL 248.13 / IEC 60269-4 |
| Structure / Performance | IEC 60269 / UL 248 |
| Compliance / Certification | RoHS, CE, UL |
| Mounting | M8 mounting bolts |
| Recommended Installation Torque | 11 N·m |
| I²t Test Condition | AC1390V, 50kA |
RS306-01-T5Z Model Selection
The RS306-01-T5Z series provides 13 verified current ratings from 32A through 400A. Select the required model according to rated current, then compare pre-arcing I²t, clearing I²t and power loss where these characteristics are relevant to the protected circuit. Confirm the AC1250V IEC or DC1000V UL requirement, aR utilization category and M8 mounting arrangement before replacement. The complete MPN should be verified before ordering because each current rating has its own published electrical characteristics.
| Exact MPN | Rated Current | Pre-Arcing I²t | Clearing I²t | Loss @ 0.5In | Loss @ In |
|---|---|---|---|---|---|
| RS306-01-T5Z-32A1250V | 32A | 73 A²s | 450 A²s | 2 W | 10 W |
| RS306-01-T5Z-40A1250V | 40A | 138 A²s | 850 A²s | 2.3 W | 12 W |
| RS306-01-T5Z-50A1250V | 50A | 255 A²s | 1,580 A²s | 2.7 W | 14 W |
| RS306-01-T5Z-63A1250V | 63A | 435 A²s | 2,660 A²s | 3.5 W | 18 W |
| RS306-01-T5Z-80A1250V | 80A | 770 A²s | 4,730 A²s | 4.2 W | 22 W |
| RS306-01-T5Z-100A1250V | 100A | 1,250 A²s | 7,620 A²s | 5.4 W | 28 W |
| RS306-01-T5Z-125A1250V | 125A | 2,220 A²s | 13,600 A²s | 6.3 W | 33 W |
| RS306-01-T5Z-160A1250V | 160A | 4,200 A²s | 25,600 A²s | 7.6 W | 40 W |
| RS306-01-T5Z-200A1250V | 200A | 6,800 A²s | 42,000 A²s | 9.5 W | 50 W |
| RS306-01-T5Z-250A1250V | 250A | 12,500 A²s | 76,500 A²s | 11.5 W | 60 W |
| RS306-01-T5Z-315A1250V | 315A | 25,200 A²s | 155,000 A²s | 13 W | 68 W |
| RS306-01-T5Z-350A1250V | 350A | 35,200 A²s | 216,000 A²s | 14 W | 73 W |
| RS306-01-T5Z-400A1250V | 400A | 50,500 A²s | 309,000 A²s | 15 W | 82 W |
Verified Applications
The RS306-01-T5Z series is specified for rail transportation, electric vehicles and marine applications. It can provide short-circuit overcurrent and backup protection for energy-storage systems, power systems, conductors and other devices and equipment. Model selection should be checked against the electrical characteristics and installation requirements of the actual protected circuit.
B2B Sourcing and Replacement Support
Apexon Supply provides B2B sourcing support for the SINOFUSE RS306-01-T5Z series, including exact-model identification and technical alignment for procurement and replacement requirements. Buyers should confirm rated current, AC/DC voltage requirements, aR category, I²t characteristics, power loss and M8 mounting requirements before replacing an existing fuse.
For RFQ review, submit the complete MPN, required quantity and application requirements. Most qualified RFQs receive a response or quote within 12 hours. This response target does not imply stock, delivery timing or product availability.
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