1-30-02
SB02036
®
Form No. FWA 150
Page 1 of 2
BIF Doc #720002
Bussmann
®
FWA 150V
70-1000A
Electrical Characteristics Ordering Information Dimensions Curves
Rated
I
2
t (A
2
Sec)
Carton
Current Clearing Watts Part Carton Weight Figure BIF #
Type RMS-Amps Pre-arc at 150V Loss Number Qty. (lbs) Number
70 470 4000 6.9 FWA-70B
_____________________________________________________________________________________
80 670 6000 7.7 FWA-80B
______________________________________________________________________________________
100 1200 12000 9.0 FWA-100B
______________________________________________________________________________________
125 1870 18000 11.2 FWA-125B
_____________________________________________________________________________________
150 2700 26000 13.5 FWA-150B
1 0.18
_____________________________________________________________________________________
200 4780 45000 17.6 FWA-200B
_____________________________________________________________________________________
250 7470 70000 22.5 FWA-250B Fig. 1 35785310
_____________________________________________________________________________________
FWA 300 10760 100000 27.0 FWA-300B
_______________________________________________________________________________ _____
150V
350 15700 140000 30.6 FWA-350B
_____________________________________________________________________________________
400 20300 180000 35.2 FWA-400B
_____________________________________________________________________________________________________________
500 39000 120000 35.0 FWA-500A
_____________________________________________________________________________________
600 46000 140000 47.0 FWA-600A
_____________________________________________________________________________________
700 75000 220000 49.0 FWA-700A 5 2.42
_____________________________________________________________________________________
800 92000 280000 58.0 FWA-800A
_____________________________________________________________________________________
1000 170000 510000 60.0 FWA-1000A
1) 500-1000 Amp Range
2) 70-400 Amp Range
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
losses at load currents lower than the
rated current. The correction factor, K
p
,
is given as a function of the RMS load
current, I
b
, in % of the rated current .
n Interrupting rating 100kA RMS Symmetrical for ampere ratings 70-400. 1 kg = 2.2 lbs 1 lb = 0.45 kg
n Interrupt rating 200kA RMS Symmetrical for ampere ratings 450-1000.
n Watts loss provided at rated current.
n (150 Vdc/Interrupting rating 20kA) U.L. Recognition on 70 - 800 amperes.
n (80 Vdc/Interrupting rating 100kA) U.L. Recognition on 70 - 400 amperes.
Electrical Characteristics
