Description:
High speed fuses that provides superior protection in light and heavy harsh DC traction applications as 1200Vdc and below circuits, and as DC link/power converters.
High speed fuses that provides superior protection in light and heavy harsh DC traction applications as 1200Vdc and below circuits, and as DC link/power converters.
Ratings:
Volts: 1200Vdc
Amps: 160-420A
IR: 1200Vdc = 100kA L/R: 15 ms.
Electrical Characteristics
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.
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
Microswitch: 170H0069, 170H3027 (gold)
Dimensions (mm):
Time-Current Curve
Catalog Numbers
| Fuse Type | Cat. Numbers | Electrical Characteristics | ||||
| -SK NB/140 Type K Indicator | Rated Voltage(Vdc) | Rated Current RMS-Amp | Max I2T(A2 Sec)@ 1000Vdc | Watts Loss(W) | ||
| L/R=15ms | L/R=45ms | |||||
| 2SKN / 140 |
170F8230 170F8231 170F8232 170F8233 170F8234 170F8235 |
1200 |
160 200 250 315 400 420 |
12000 20000 43000 87000 180000 215000 |
20000 35000 75000 150000 310000 375000 |
75.0 85.0 94.0 104.0 120.0 122.0 |
Dimensions (mm):
Time-Current Curve
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