Description:
High speed square body fuses, for the protection of the power rectifier section of the equipment.
High speed square body fuses, for the protection of the power rectifier section of the equipment.
Ratings:
Volts: 1250Vac (IEC)
Amps: 630-2800A
IR: 125kA RMS Sym.
Agency Information:
CE, Designed and tested to IEC 60269: Part 4, UL Recognized.
CE, Designed and tested to IEC 60269: Part 4, UL Recognized.
Electrical Characteristics
Total clearing I2t
The total clearing I2t at rated voltage and at power factor of 15% are given in the electrical characteristics. For other voltages, the clearing I2t is found by multiplying by correction factor, K, given as a function of applied working voltage, Eg, (rms).
Arc Voltage
This curve gives the peak arc voltage, UL, which may appear across the fuse during its operation as a function of the applied working voltage Eg , (rms) at a power factor
of 15%.
Power Losses
Watts loss at rated current is given in the electrical characteristics. The curve allows the calculation of the power losses at load currents lower than the rated current. The correction factor, Kp, is given as a function of the RMS load current, Ib, in % of the rated current.
Features and Benefits
• Excellent DC performance
• Low arc voltage and low energy let-through (I2t)
• Low watts loss
• Superior cycling capability
Typical Applications
• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters
Catalog Numbers
| Fuse Size | Catalog Number | Electrical Characteristics | |||||||||
| -BU/75 without Indicator |
-BKE/75 Type K Indicator |
-BKN/75 Type K Indicator |
-BU/80 without Indicator |
-BKE/80 Type K Indicator |
-BKN/80 Type K Indicator |
Rated Voltage (V) | Rated Current RMS-Amp | I2t (A2Sec) | Watts Loss (W) | ||
| Pre-arc |
Clearing at 1250V |
||||||||||
| 23 |
170M6775 170M6776 170M6777 170M6805 170M6778 170M6779 170M6780 170M6781 170M6782 170M6783 |
170M6795 170M6796 170M6797 170M6807 170M6798 170M6799 170M6800 170M6801 170M6802 170M6803 |
170M6785 170M6786 170M6787 170M6806 170M6788 170M6789 170M6790 170M6791 170M6792 170M6793 |
170M6784 170M6815 |
170M6804 170M6833 |
170M6794 170M6827 |
1250 |
630A 700A 800A 900A 1000A 1100A 1250A 1400A 1600A 1800A 2000A 2200A |
38000 54000 78000 120000 155000 220000 330000 460000 820000 1200000 1800000 2300000 |
310000 440000 640000 980000 1250000 1750000 2700000 3800000 5200000 7600000 11000000 14500000 |
170 180 190 200 210 220 230 240 250 260 270 280 |
|
170M6816 170M6817 |
170M6834 170M6835 |
170M6828 170M6829 |
1100 |
2500A 2800A |
3200000 5000000 |
†16000000 †24000000 |
290 300 |
||||
Dimensions (mm):
Time-Current Curve
Peak Let-Through Curve
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