High Speed Fuses
Square body DIN 43 620 — 1000V (IEC): 20–225A
1000V (IEC) 20–225A
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%.
Specifications
Description: Square body DIN
43 620 blade style high speed
fuses.
Dimensions: See dimensions
illustration.
Ratings:
Volts: — 1000Vac
Amps: — 20-225A
IR: — 150kA RMS Sym.
1,5
K
*
1,0
0,5
0,4
0,3
0,2
Eg
200
400
600
800
Eg
3
200
1,0
0,8
0,7
0,6
0,5
400
600
800
1000
Kp
High Speed
Fuses
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.
Electrical Characteristics
The total clearing I2t at rated
voltage and at power factor
of 15% 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).
8
7
6
5
4
Power Losses
Agency Information: CE, Designed and tested to IEC
60269: Part 4, UL Recognized.
Total clearing I2t
3
UL
2,5
2
1,8
1,6
1,4
1,2
103
0,4
0,3
0,2
0,15
0,1
30
Ib
40
50
60
70
•
•
•
•
90 100%
Features and Benefits
Excellent dc performance
Low arc voltage and low energy let-through (I2t)
Low watts loss
Superior cycling capability
•
•
•
•
80
Typical Applications
DC common bus
DC drives
Power converters/rectifiers
Reduced voltage starters
1000
*Rated voltage 900V
Dimensions (mm)
Type T
Size
DIN 00
A
49
B
78.5
Max D
60
Max E
30
F
35
G
6
Min H
15
1mm = 0.0394” / 1” = 25.4mm
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
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