High Speed Fuses
Square body DIN 43 653 — 1250V/1300V (IEC/UL):
50-1400A
3
2.5
Arc Voltage
1250V/1300V (IEC/UL) 50-1400A
U
L
This curve gives the peak
Specifications
arc voltage, U , which may 1.8
L
Description: Square body DIN
43 653 stud-mount high speed
fuses.
1.4
appear across the fuse
during its operation as a
function of the applied
working voltage, E , (rms)
at a power factor of 15%.
103
8
Dimensions: See dimensions
illustration.
6
5
g
Ratings:
Volts:— 1250Vac (IEC)
— 1300Vac (UL)
4
3
Eg
Power Losses
400 600
800 1000 1200 1400
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-
Amps:— 50-1400A
IR:— 100kA RMS Sym.
1.0
0.8
Kp
0.6
0.5
Agency Information: CE, Designed and tested to IEC
60269: Part 4, UL Recognized. Consult Cooper Bussmann for
UL Recognition/CSA Component Acceptance status.
0.4
0.3
tion factor, K , is given as
Electrical Characteristics
p
a function of the RMS load 0.2
1.5
1.25
1.0
Total Clearing I2t
K
current, I , in % of the
b
Ib
2
rated current.
The total clearing I t at
0.1
30 40 50 60
80 90 100%
70
rated voltage and at
power factor of 15% are
given in the electrical
characteristics. For other
Features and Benefits
• Excellent dc performance
0.5
2
0.4
• Low arc voltage and low energy let-through (I t)
• Low watts loss
0.3
2
voltages, the clearing I t
• Superior cycling capability
is found by multiplying by
correction factor, K, given
as a function of applied
0.2
Eg
Typical Applications
• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters
400 600 800 1000 1200 1400
Dashed lines (- - - - - -) apply to the following
amperages:.
Size
1*
1
working voltage, E ,
g
(rms).
Amps.
400A
500-630A
630-1000A
800-1400A
2
3
Dimensions (mm)
Type -/110, -TN/110
Size
1*
1
2
3
A
B
D**
E
H
108
A
80
80
80
81
138 58 45
138 66 53
138 75 61
139 90 76
20
25
25
30
**Microswitch.
1mm = 0.0394” / 1” = 25.4mm
H
11
D
E
B
6
E
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
128