SINOFUSE RSZ307-2-RAZ-450A1500V High-Speed DC Fuse, 450A 1500VDC, aR, Size 2
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SINOFUSE RSZ307-2-RAZ-450A1500V is a high-speed semiconductor fuse from the RSZ307-2-RAZ Series, rated at 450A and 1500VDC. Designed for aR partial-range protection, it provides fast short-circuit interruption and current-limiting performance for high-power DC and power-electronic circuits.
The fuse features a Size 2 bolt-on construction with M8 mounting fasteners. Its specified breaking capacity is 150kA at a 10ms time constant and up to 250kA at a 4ms time constant. With low I²t characteristics and high fault-current interruption capability, the RSZ307-2-RAZ-450A1500V is suitable for demanding semiconductor and DC power protection applications.
| Brand | SINOFUSE |
| Product ID (MPN) | RSZ307-2-RAZ-450A1500V |
| Product Series | RSZ307-2-RAZ |
| Product Type | High-Speed Semiconductor Fuse |
| Utilization Category | aR (Partial Range Protection) |
| Rated Voltage | 1500VDC |
| Rated Current | 450A |
| Breaking Capacity (10ms Time Constant) | 150kA |
| Breaking Capacity (4ms Time Constant) | 250kA |
| Pre-Arcing I²t | 115,000 A²s |
| Total Clearing I²t | 580,000 A²s |
| Power Dissipation | 137W |
| Size Code | Size 2 |
| Mounting Method | Bolt-On (M8 Fasteners) |
| Recommended Torque | 11 ± 1 N·m |
| Overall Length | 211 ± 3 mm |
| Mounting Hole Distance | 180 ± 2.5 mm |
| Fuse Weight | 1500 g ±10% |
| Compliance | IEC 60269, UL 248, RoHS |
High-Speed Protection for High-Power DC Systems
The RSZ307-2-RAZ-450A1500V is designed for applications where fast fault-current interruption is required to protect sensitive power-semiconductor components and high-energy DC circuits. Its aR utilization category is intended primarily for short-circuit and partial-range protection rather than conventional full-range overload protection.
Typical Applications
- Power semiconductor protection
- High-voltage DC power systems
- Energy storage power-conversion equipment
- Industrial inverters and converters
- DC drives and rectifier systems
- High-power electrical equipment
Ordering Information
When replacing an existing fuse, verify the complete model number RSZ307-2-RAZ-450A1500V, rated current, rated DC voltage, Size 2 mechanical configuration, mounting-hole spacing, and I²t requirements before ordering.
Contact Apexon Supply for current availability, quotation, lead time, technical documentation, and alternative SINOFUSE RSZ307 series fuse ratings.
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