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Bussmann 方体快速熔断器 170M 系列 分断能力高，灭弧能力强。
Specifications Description Bolted tags high speed fuse links for the protection of IGBT modules, optimised for use in IGBT inverter circuits with DC link rated voltages up to 750 V d.c.. Low inductance 15nH. Technical data Rated voltage: 750 V d.c. tested at 863V d.c. according to IEC 60269-4 800 V d.c. tested at 800 V d.c. according to UL 248-1 Rated current: 25 A to 630 A Breaking capacity: 50 kA DC (1ms tc) at 800 V d.c. Operating class: aR Standards / Agency information UL DC Recognised, 800 V d.c. L/R 1 mS max | |
Catalogue numbers
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Dimensions (mm) - Size 000
Dimensions (mm) - Size 230
Time-current curve - Size 000, 25 A to 350 A
Cut-off curve - Size 000, 25 A to 350 A
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Total clearing I2t The total clearing I2t at rated voltage and at a power factor of 15 percent 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 percent.
| Watts losses Watts loss at rated current is given in the electrical characteristics. The curve allows the calculation of the watts 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 percent of the rated current.
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Time-current curve - Size 230, 100 A to 630 A
Cut-off curve - Size 230, 100 A to 630 A
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Total clearing I2t The total clearing I2t at rated voltage and at a power factor of 15 percent 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 percent.
| Watts losses Watts loss at rated current is given in the electrical characteristics. The curve allows the calculation of the watts 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 percent of the rated current.
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