Sinofuse RS308-HB-4G80A Fast-Acting Bolt-on Fuse, 80A 750VDC, aR
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Sinofuse RS308-HB-4G80A is a size 4G fast-acting bolt-on fuse rated at 80 A and 750 VDC with an aR utilization category. The verified 80 A variant has a pre-arcing I²t of 611 A²s, total clearing I²t of 2105 A²s, and power dissipation of 21.3 W.
| Model | RS308-HB-4G80A |
| Rated Current | 80 A |
| Rated Voltage | 750 VDC |
| Utilization Category | aR |
| Size Code | 4G |
| Breaking Capacity | 50 kA at 750 VDC |
| Pre-Arcing I²t | 611 A²s |
| Total Clearing I²t | 2105 A²s |
| Power Dissipation | 21.3 W |
| Mounting Bolt | M6 |
| Recommended Mounting Torque | 5.5 N·m |
The RS308-HB series is specified for short-circuit and backup protection in road-vehicle applications including electric-vehicle drive power systems, power-conversion systems, energy-storage and traction batteries, energy-storage capacitors, variable-frequency controllers, chargers, conductors, and related vehicle equipment.
Apexon Supply provides B2B sourcing and replacement support for Sinofuse RS308-HB-4G80A, helping procurement teams review verified specifications and technical alignment for circuit-protection requirements.
Send the RS308-HB-4G80A part number, required quantity, and application requirements for RFQ support. Most qualified RFQs receive a response or quote within 12 hours.
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