High Speed Fuses
Square body DIN 43 653 — 1000V (IEC): 50-1400A
Arc Voltage
3
1000V (IEC) 50-1400A
U
L
2,5
This curve gives the peak
arc voltage, U , which may
2
Specifications
Description: Square body mount
high speed fuses.
1,8
1,6
1,4
1,2
103
L
appear across the fuse
during its operation as a
function of the applied
working voltage Eg, (rms)
at a power factor of 15%.
8
7
6
5
Dimensions: See dimensions
illustrations.
Ratings:
4
3
Volts:— 1000Vac.
Amps:— 50-1400A
IR:— 150kA RMS Sym.
Eg
Power Losses
500
600 700
800
900 1000
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 correc-
1,0
Kp
0,8
Agency Information: CE, Designed and tested to IEC
60269: Part 4, UL Recognized.
0,7
0,6
0,5
0,4
Electrical Characteristics
0,3
Total clearing I2t
1,5
K
0,2
2
tion factor, K , is given as
The total clearing I t at
p
1,0
*
0,15
a function of the RMS load
rated voltage and at power
factor of 15% are given in
the electrical characteris-
tics. For other voltages, the
Ib
0,1
current, I , in % of the
b
30
40 50 60 70 80 90 100%
0,5
0,4
rated current.
Features and Benefits
• Excellent dc performance
• Low arc voltage and low energy let-through (I t)
• Low watts loss
• Superior cycling capability
2
0,3
clearing I t is found by mul-
tiplying by correction fac-
tor, K, given as a function
of applied working voltage,
2
0,2
Eg
900 1000
500
600 700
800
E , (rms).
g
*Rated voltage 900V
Typical Applications
• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters
Dimensions (mm)
Type –KN/110
Type-KN/110
Size
A
B
C
Max D1
61
69
77
92
E
G
6
6
6
6
H
I.
1*KN/110 80 138
1KN/110 80 138
2KN/110 80 138
3KN/110 81 139
108
108
108
108
43
51
59
74
22
25
25
30
11
11
11
11
Type –TN/110
Size
A
B
C
Max D2
61
69
75
90
E
G
6
6
6
6
H
I
1*TN/110 80 138
1TN/110 80 138
2TN/110 80 138
3TN/110 81 139
108
108
108
108
43
51
59
74
22
25
25
30
11
11
11
11
1mm = 0.0394” / 1” = 25.4mm
Type-TN/110
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
124