-
Square Body DC Fuses — 1200Vdc: 160-420A
Specifications
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.
Dimensions: See dimensions illustration.
Ratings: Volts: — 1200Vdc
Amps: — 160-420A IR: — 1200Vdc = 100kA L/R: 15 ms.
Agency Information: Consult Cooper Bussmann.
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.
Catalog Numbers
Fuse Type
Catalog Numbers (Amps)
Vdc
Amp
2SKN/140
170F8230
1200V
160A
170F8231
200A
170F8232
250A
170F8233
315A
170F8234
400A
170F8235
420A
Data Sheet: 170K5520 Microswitch: 170H0069, 170H3027 (gold)
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
-