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Square Body Flush End Contact Size 23, 24 — 660V (IEC): 1000-7500A
Specifications
Description: High speed square body fuses, for the protection of the power rectifier section of the equipment.
Dimensions: See dimensions illustration.
Ratings: Volts: — 660Vac
Amps: — 1000-4000A
IR: — 300kA 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.
Catalog Numbers
Size
Catalog Numbers
Electrical Characteristics
-BU/55 Visual Indicator
-BKE/55 Type K Indicator
-BKN/55 Type K Indicator
-GU/55 Visual Indicator
-GKE/55 Type K Indicator
-GKN/55 Type K Indicator
Rated Voltage (V)
Rated Current RMS-Amp
23
170M6858
170M6898
170M6878
170M6918
170M6958
170M6938
660
1000
170M6859
170M6899
170M6879
170M6919
170M6959
170M6939
1100
170M6860
170M6900
170M6880
170M6920
170M6960
170M6940
1250
170M6861
170M6901
170M6881
170M6921
170M6961
170M6941
1400
170M6862
170M6902
170M6882
170M6922
170M6962
170M6942
1500
170M6863
170M6903
170M6883
170M6923
170M6963
170M6943
1600
170M6864
170M6904
170M6884
170M6924
170M6964
170M6944
1800
170M6865
170M6905
170M6885
170M6925
170M6965
170M6945
2000
170M6866
170M6906
170M6886
170M6926
170M6966
170M6946
2200
170M6867
170M6907
170M6887
170M6927
170M6967
170M6947
2500
170M6868
170M6908
170M6888
170M6928
170M6968
170M6948
3000
170M6869
170M6909
170M6889
170M6929
170M6969
170M6949
600
3500
170M6870
170M6910
170M6890
170M6930
170M6970
170M6950
550
4000
Size
Catalog Numbers
Electrical Characteristics
-BU/60 without Indicator
-BKN/60 Type K Indicator
-GU/60 without Indicator
-GKN/60 Type K Indicator
Rated Voltage (V)
Rated Current RMS-Amp
24
170M7138
170M7158
170M7198
170M7218
690
2000
170M7139
170M7159
170M7199
170M7219
2500
170M7140
170M7160
170M7200
170M7220
3000
170M7141
170M7161
170M7201
170M7221
3500
170M7142
170M7162
170M7202
170M7222
4000
170M7143
170M7163
170M7203
170M7223
4500
170M7144
170M7164
170M7204
170M7224
5000
170M7145
170M7165
170M7205
170M7225
5500
170M7146
170M7166
170M7206
170M7226
6000
170M7147
170M7167
170M7207
170M7227
6500
170M7148
170M7168
170M7208
170M7228
7000
170M7149
170M7169
170M7209
170M7229
500
7500
† A2s @ 500V Data Sheet: 170K6332
Features and Benefits
• Low watts loss
• Superior cycling capability
Typical Applications
• Power converters/rectifiers
• Reduced voltage starters
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