We are professional in EATON BUSSMANN (Formerly Cooper Bussmann).

cooper bussmann

170M,Square Body Flush End Contact-690/700V(IEC/UL):1000-4000A

  
Description:
Square body flush end contact high speed fuses.

Ratings:
Volts: 690Vac
Amps: 1000-4000A
IR: 200kA RMS Sym.

Agency:
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

Dimensions (mm)
Type 4B/-, 4BKN/-, 4G/-, 4GKN/-



Catalog Numbers
Catalog Numbers Size Electrical Characteristics
-/80 Visual Indicator -BKN/ Type K Indicator for Micro -G/  Visual Indicator -GKN/ Type K Indicator for Micro Rated Current RMS-Amps I2t(A2 Sec) Watts Loss
Norm Cool. Llquld Cool. Pre-arc Clearing at 660V Norm Cool. Llquld Cool.
170M7058 170M7078 170M7098 170M7118 4 1000 1350 76000 505000 175 315
170M7059 170M7079 170M7099 170M7119 1250 1700 145000 965000 195 355
170M7060 170M7080 170M7100 170M7120 1400 1900 205000 1400000 205 375
170M7061 170M7081 170M7101 170M7121 1600 2200 305000 2050000 220 405
170M7062 170M7082 170M7102 170M7122 2000 2700 600000 3950000 245 445
170M7063 170M7083 170M7103 170M7123 2500 3400 1200000 7800000 275 495
170M7064 170M7084 170M7104 170M7124 3000 4100 2000000 13500000 305 555
170M7065 170M7085 170M7105 170M7125 3500 4700 3250000 22000000 325 585
170M7066 170M7086 170M7106 170M7126 †000 †400 4700000 †8000000 355 640
†Rated voltage (IEC) 500V.
• Watts loss provided at rated current.
• Liquid Cool. = Liquid cooling. Temperature on the terminals not to exceed 60°C.
• Microswitch indicator ordered separately.

Time-Current Curve

Peak Let-Through Curve
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