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FWH-450A Eaton Bussmann 450A High Speed Fuse
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Eaton Bussmann FWH-450A — 450A high speed fuse, 50 kAIC at 500 Vdc 200 kAIC at 1000 Vac interrupting. Protects semiconductors in drives, rectifiers and inverters.
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FWH-450A Eaton Bussmann 450A High Speed Fuse
At a Glance
- 750 Vac, 750 Vdc rated voltage, 450A RMS rated current
- 50 kAIC at 500 Vdc 200 kAIC at 1000 Vac interrupting rating
- Blade end x blade end terminations
- Non Indicating
The Eaton Bussmann FWH-450A is a high speed fuse with 750 Vac, 750 Vdc rated voltage, 450A RMS rated current, 50 kAIC at 500 Vdc 200 kAIC at 1000 Vac interrupting capacity. Construction is non indicating.
Specifications
General specifications
| UPC | 051712150194 |
| Product Length/Depth | 2.17 in |
| Product Height | 2.8 in |
| Product Width | 5.3 in |
| Product Weight | 0.92 lb |
Electrical rating
| Amperage Rating | 450A RMS |
| Interrupt rating | 50 kAIC at 500 Vdc 200 kAIC at 1000 Vac |
| Voltage rating | 750 Vac, 750 Vdc |
| Watt losses | 74 W |
Physical details
| Packaging type | Standard |
General information
| Connection | Blade end x blade end |
| Fuse indicator | Non Indicating |
| Mounting method | Stud |
Series Selection Table
Applications
- Industrial equipment
Selection Notes
- Semiconductor fuses are chosen on I²t let-through against the device surge rating, not on continuous current alone.
- Termination: Blade end x blade end. Confirm the mating clip or busbar before ordering; ferrule and blade ends are not interchangeable.
Common Questions
What are the ratings of the Eaton Bussmann FWH-450A?
750 Vac, 750 Vdc / 450A RMS, with a 50 kAIC at 500 Vdc 200 kAIC at 1000 Vac interrupting rating.
How much fault current can the FWH-450A interrupt?
50 kAIC at 500 Vdc 200 kAIC at 1000 Vac. The available fault current at the installation point must not exceed this value.
How does the FWH-450A connect?
Blade end x blade end. Confirm the mating clip, holder or busbar before ordering — ferrule and blade ends are not interchangeable.
How should I select the FWH-450A for a circuit?
Match the voltage rating to the system voltage, keep the continuous current above the load current, and check that the interrupting rating exceeds the available fault current. In medium voltage work, select on the transformer or feeder fault level rather than the load current alone.
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