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Bussmann ?
FWA 130V
1000-4000A
?
Electrical Characteristics Ordering Information
Dimensions
Curves
Rated
I 2 t (A 2 Sec)
Carton
See Page
Current Clearing Watts Part Carton
Weight
Figure
or
Type
RMS-Amps Pre-arc at 130V Loss Number Qty.
(lbs)
Number
(BIF #)
______________________________________________________________________________________
______________________________________________________________________________________
1000 170000 460000 60 FWA-1000AH
1200 270000 730000 70 FWA-1200AH
______________________________________________________________________________________
130V ______________________________________________________________________________________
FWA
1500 520000 1400000 78 FWA-1500AH
2000 860000 2400000 108 FWA-2000AH
1
3.3
Fig. 1
35785301
______________________________________________________________________________________
2500 1500000 4100000 130 FWA-2500AH
______________________________________________________________________________________
3000 2100000 5700000 150 FWA-3000AH
4000 3400000 9200000 257 FWA-4000AH
______________
Fig. 2
Interrupting rating 200kA RMS Symmetrical.
Watts loss provided at rated current.
(130 Vdc/Interrupting Rating 50kA) U.L. Recognition on 1000 through 2000 amperes.
Electrical Characteristics
1 kg = 2.2 lbs
1 lb = 0.45 kg
Total Clearing I 2 t
The total clearing I 2 t at rated voltage and
at power factor of 15% are given in the
electrical characteristics. For other volt-
ages, the clearing I 2 t is found by multi-
plying by correction factor, K , given as
a function of applied working voltage,
E g , (RMS).
Arc Voltage
This curve gives the peak arc voltage,
U L , which may appear across the fuse
during its operation as a function of the
applied working voltage, E g , (RMS) at a
power factor of 15%.
Power Losses
Watts loss at rated current is given in
the electrical characteristics. The curve
allows the calculation of the power loss-
es at load currents lower than the rated
current . The correction factor, K p , is
given as a function of the RMS load cur-
rent, Ib , in % of the rated current .
1.5
K
U L
1.0
0.8
K p
1.0
300
0.6
0.5
0.4
0.5
200
0.3
0.3
0.2
100
0.2
0.15
E g
E g
0.1
I b
26
65
104
130
50
100
150
30 40 50
60
70
80 90 100%
Form No. FWA 130
Page 1 of 2
7-11-01
SB01191
BIF Doc #720001
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