Cooper Bussmann fuse 170M1571 170M1571D 250A 690V Original Square Body Fuse
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Specification 1.2kg / box10pcs / boxLength: 25cm Width: 10cm Height: 5cm
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Price
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Rated Current The rated current of this fuse range has been given with copper conductors that have a current density of 1.3 A/mm2 (IEC 60269-4). For conductor cross section according to IEC 60269-1, the fuses with a rated current higher than 125A must be derated. Please contact Bussmann for application assistance.
Total Clearing I2t The total clearing I2 t at rated voltage and at power factor of 15% are given in the electrical characteristics. For other voltages, the clearing I2 t is found by multiplying by correction factor, K, given as a function of applied working voltage,
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 .
