cooper bussmann

170M Square Body Flush End Contact 1250V(IEC):1400-2500A

  
Description:
High speed square body fuses, for the protection of the power rectifier section of the equipment.
 
Ratings:
Volts: 1250Vac (IEC)
Amps: 1400-2500A
IR: 125kA RMS Sym.
 
Agency Information:
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
-BKN/105
Type K
Indicator
-SBKN/105
Type K
Indicator
Rated Voltage (V) Rated Current RMS-Amp 2            2
I t (A Sec)
Watt Loss (W)
Pre-arc Clearing at 1250V
4 170M7217
170M7597
170M7676
170M7532
170M7633
170M7592
170M7107
170M7595
170M7512
170M7510
170M7511
170M7976
170M7513
170M7546
170M7516
170M7978
1250 1400A
1500A
1700A
1800A
2000A
2200A
2400A
2500A
800000
1000000
1400000
1700000
2300000
3100000
4000000
4500000
5000000
6200000
8700000
11000000
14500000
19500000
25000000
28000000
195
200
220
225
235
245
255
260


Dimensions (mm):




Time-Current Curve - 1400-2400A: 1250V 


Peak Let-Through Curve - 1400-2400A: 1250V 


Time-Current Curve - 2300-2500A: 1250V


Peak Let-Through Curve - 2300-2500A: 1250V


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