Square Body DC Fuses - 4000Vdc: 20-450A
Specifications
Description: High speed fuses for the protection of DC circuits in equipment.
Dimensions: See dimensions illustration.
Ratings:
• Volts: 4000Vdc
Amps: 20-450A
• IR: 60Ka L/R: 25 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 |
Catalong Numbers |
Vdc |
Amp |
1*SKN/394 |
170E3914 |
4000V |
20 |
170E3915 |
25 |
||
170E3916 |
32 |
||
170E3917 |
40 |
||
170E3918 |
50 |
||
170E3919 |
63 |
||
170E3984 |
80 |
||
170E3933 |
100 |
||
170E3922 |
125 |
||
2 SKN/394 |
170E8882 |
160 |
|
170E8883 |
200 |
||
170E8884 |
250 |
||
2 // 2SKN/394 |
170E8885 |
315 |
|
170E8886 |
350 |
||
170E8887 |
400 |
||
170E8888 |
450 |
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
Series: European standard square flat end DC 4000V 20-450A
Current: 20-450A
Voltage: 4000Vac
Breaking capacity: 60 kA RMS Sym.
Certification:- DC common bus
-DC drives
-Power converters/rectifiers
-Reduced voltage starters