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170M4494 Eaton Bussmann 1300V 450A Class aR High Speed Fuse
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Eaton Bussmann 170M4494 — 1300V 450A Class aR high speed fuse, 100 kAIC interrupting. Protects semiconductors in drives, rectifiers and inverters.
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170M4494 Eaton Bussmann 1300V 450A Class aR High Speed Fuse
At a Glance
- 1300 V (UL), 1250 V (IEC) rated voltage, 450 A rated current
- 100 kAIC interrupting rating
- Class aR time-current characteristic
- Flush-end contact terminations
The Eaton Bussmann 170M4494 is a square body fuse with 1300 V (UL), 1250 V (IEC) rated voltage, 450 A rated current, 100 kAIC interrupting capacity, carrying a Class aR time-current characteristic. Construction is non indicating.
Specifications
常用規格
| Product Length/Depth | 69 mm |
| Product Height | 75 mm |
| Product Width | 53 mm |
| Product Weight | 956 g |
產品規格
| Amperage Rating | 450 A |
| Breaking capacity | 100 kA |
| Fuse indicator | Non Indicating |
| Utilization category | aR (accompanied semiconductor protection) |
| Fuse size | 1 |
| Rated voltage AC | 1250 V |
| Center-to-center distance of connections | 74 mm |
| Current type | AC |
| Mounting dimension | M10 |
| Class | Class aR |
| Clearing (I2T) | 250000 at 1000 V 335000 at 1250 V |
| Watt losses | 80 W |
| Fuse shape | Square Body size 1* to 3, flush-end contact |
| Pre arc (I2T) | 42000 |
| Color | None |
| Interrupt rating | 100 kAIC |
| Connection | Flush-end contact |
| Construction size | 1 |
| Mounting method | Flush |
| Packaging type | Standard |
| Voltage rating | 1300 V (UL), 1250 V (IEC) |
| Type | Square body flush end contact -GKN/75 Type K indicator for micro |
| Application | DC common bus DC drives power converters/rectifiers reduced voltage starters |
| Fuse type | GKN/75 Type K indicator for micro |
| Fuse system (according to IEC 60269) | Other |
Series Selection Table
Applications
- Industrial equipment
Selection Notes
- Termination: Flush-end contact. 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 170M4494?
1300 V (UL), 1250 V (IEC) / 450 A, with a 100 kAIC interrupting rating.
How much fault current can the 170M4494 interrupt?
100 kAIC. The available fault current at the installation point must not exceed this value.
What does Class aR mean for the 170M4494?
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 170M4494 connect?
Flush-end contact. Confirm the mating clip, holder or busbar before ordering — ferrule and blade ends are not interchangeable.
How should I select the 170M4494 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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