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FWH-1400A Eaton Bussmann 1400A Class aR High Speed Fuse
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Eaton Bussmann FWH-1400A — 1400A Class aR 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-1400A Eaton Bussmann 1400A Class aR High Speed Fuse
At a Glance
- 500 Vac rated voltage, 1400 A rated current
- 50 kAIC at 500 Vdc 200 kAIC at 1000 Vac interrupting rating
- Class aR time-current characteristic
- Blade end x blade end terminations
The Eaton Bussmann FWH-1400A is a high speed fuse with 500 Vac rated voltage, 1400 A rated current, 50 kAIC at 500 Vdc 200 kAIC at 1000 Vac interrupting capacity, carrying a Class aR time-current characteristic. Construction is non indicating.
Specifications
General specifications
| UPC | 051712795890 |
| EAN | 5027590020831 |
| Product Length/Depth | 29 mm |
| Product Height | 11 mm |
| Product Width | 12 mm |
| Product Weight | 5523 g |
| Global Catalog | FWH-1400A |
Product specifications
| Amperage Rating | 1400 A |
| Breaking capacity | 200 kA |
| Fuse indicator | Non Indicating |
| Insulated metal gripping lugs (IMGL) | No |
| Utilization category | aR (accompanied semiconductor protection) |
| Voltage type | AC |
| Rated switching capacity | 200 A |
| Rated voltage AC | 500 V |
| Mounting dimension | Other |
| Center-to-center distance of connections | 228 mm |
| Current type | AC |
| Class | Class aR |
| Clearing (I2T) | 1000000 |
| Watt losses | 210 W |
| Fuse shape | Cylindrical, center bolted tags |
| Pre arc (I2T) | 200000 |
| Color | None |
| Interrupt rating | 50 kAIC at 500 Vdc 200 kAIC at 1000 Vac |
| Connection | Blade end x blade end |
| Construction size | Other |
| Mounting method | Stud |
| Packaging type | Standard |
| Voltage rating | 500 Vac |
| Type | High speed fuse |
| Application | Semiconductor, DC Common bus, DC drives, Power converters/rectifiers |
| Fuse type | FWH-A |
| Fuse system (according to IEC 60269) | Other |
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-1400A?
500 Vac / 1400 A, with a 50 kAIC at 500 Vdc 200 kAIC at 1000 Vac interrupting rating.
How much fault current can the FWH-1400A interrupt?
50 kAIC at 500 Vdc 200 kAIC at 1000 Vac. The available fault current at the installation point must not exceed this value.
What does Class aR mean for the FWH-1400A?
Class aR defines the fuse's time-current characteristic. E-rated fuses carry a defined melting curve so they coordinate predictably with upstream and downstream devices; mixing E and non-E ratings in one feeder defeats that coordination.
How does the FWH-1400A 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-1400A 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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