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170M8512 Eaton Bussmann 1000V 1250A Class aR High Speed Fuse
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Eaton Bussmann 170M8512 — 1000V 1250A Class aR high speed fuse, 150 kAIC interrupting. Protects semiconductors in drives, rectifiers and inverters.
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170M8512 Eaton Bussmann 1000V 1250A Class aR High Speed Fuse
At a Glance
- 1000 V (IEC) rated voltage, 1250 A rated current
- 150 kAIC interrupting rating
- Class aR time-current characteristic
- Non Indicating
The Eaton Bussmann 170M8512 is a square body fuse with 1000 V (IEC) rated voltage, 1250 A rated current, 150 kAIC interrupting capacity, carrying a Class aR time-current characteristic. Construction is non indicating.
Specifications
General specifications
| UPC | 051712603874 |
| EAN | 5027590325189 |
| Product Length/Depth | 168 mm |
| Product Height | 76 mm |
| Product Width | 95 mm |
| Product Weight | 659 g |
Electrical data
| Amperage Rating | 1250 A |
| Class | Class aR |
| Clearing (I2T) | 3400000 at 1000 V |
| Interrupt rating | 150 kAIC |
| Pre arc (I2T) | 575000 |
| Voltage rating | 1000 V (IEC) |
| Watt losses | 175 W |
Product specifications
| Application | Semiconductor, DC Common bus, DC drives, power converters/rectifiers |
| Fitted with: | Type K Indicator for micro |
| Fuse indicator | Non Indicating |
| Fuse size | 3 |
| Fuse type | Flush end GKN/Type K indicator for micro |
Series Selection Table
Applications
- Energy and utility distribution
- Industrial equipment
- Photovoltaic systems
Selection Notes
- Check the voltage rating against the system voltage, and the interrupting rating against the available fault current, before specifying.
Common Questions
What are the ratings of the Eaton Bussmann 170M8512?
1000 V (IEC) / 1250 A, with a 150 kAIC interrupting rating.
How much fault current can the 170M8512 interrupt?
150 kAIC. The available fault current at the installation point must not exceed this value.
What does Class aR mean for the 170M8512?
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 should I select the 170M8512 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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