Bussmann
®
FWP 700V
5-1200A
Carton
Weight
(lbs)
R
®
Type
Electrical Characteristics
Ordering Information
2
t (A
2
Sec)
I
Rated
Current
Clearing
Watts
Part
Carton
RMS-Amps
Pre-arc
at 700V
Loss
Number
Qty.
5
1.6
10
1.5
FWP-5B
__________________________________________________________________________
10
3.6
20
4
FWP-10B
__________________________________________________________________________
15
10
75
5.5
FWP-15B
__________________________________________________________________________
20
26
180
6
FWP-20B
__________________________________________________________________________
25
44
340
7
FWP-25B
__________________________________________________________________________
Dimensions
Figure
Number
Curves
BIF #
10
2.25
35785316
30
58
450
9
FWP-30B
______________________________________________________________________________________
___________
_
35
34
160
12
FWP-35B
__________________________________________________________________________
40
76
320
12
FWP-40B
__________________________________________________________________________
50
135
600
12
FWP-50B
__________________________________________________________________________
70
305
2000
18
FWP-70B
__________________________________________________________________________
80
360
2400
21
FWP-80B
__________________________________________________________________________
90
415
2700
25
FWP-90B
__________________________________________________________________________
100
540
3500
27
FWP-100B
__________________________________________________________________________
125
1800
7300
28
FWP-125A
__________________________________________________________________________
FWP
150
2900
11700
32
FWP-150A
__________________________________________________________________________
700V
__________________________________________________________________________
175
4200
16700
35
FWP-175A
200
5500
22000
43
FWP-200A
__________________________________________________________________________
225
7700
31300
45
FWP-225A
__________________________________________________________________________
250
10500
42500
48
FWP-250A
__________________________________________________________________________
300
17600
71200
58
FWP-300A
__________________________________________________________________________
350
23700
95600
65
FWP-350A
__________________________________________________________________________
400
31000
125000
78
FWP-400A
__________________________________________________________________________
450
36400
137000
94
FWP-450A
__________________________________________________________________________
500
45200
170000
107
FWP-500A
__________________________________________________________________________
600
66700
250000
122
FWP-600A
__________________________________________________________________________
700
54000
300000
125
FWP-700A
__________________________________________________________________________
800
78000
450000
140
FWP-800A
__________________________________________________________________________
900
91500
530000
150
FWP-900A
__________________________________________________________________________
1000
120000
600000
170
FWP-1000A
__________________________________________________________________________
1200
195000
1100000
190
FWP-1200A
6.60
2.39
___________
_
___________
_
5
1.21
35785308
60
210
950
15.5
FWP-60B
_________________________________________________________________________________________________
0.24
___________
_
Fig. 1
0.65
___________
_
361
1
1.17
1.21
_____________________ _
_
Fig. 2
__________
_
35785308
Fig. 3
1 lb = 0.45 kg
Interrupting rating 200kA RMS Symmetrical.
1 kg = 2.2 lbs
Watts loss provided at rated current.
(700 Vdc/Interrupting rating 50kA) U.L. Recognition & CSA Component Acceptance on 5 through 100 & 700 through 800 amperes.
(700 Vdc/Interrupting rating 10kA) U.L. Recognition & CSA Component Acceptance on 125 through 600 amperes.
3-6-02
A02008
Form No. FWP 700
Page 1 of 2
Data Sheet: 720012
Bussmann
®
FWP 700V
5-1200A
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%.
R
®
Electrical Characteristics
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).
1.5
K
1.0
2)
0.5
1)
0.3
0.2
0.15
316
3)
E
g
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 .
1.0
K
p
0.8
0.6
0.5
0.4
2
U
L
1.6
1.4
1.2
10
3
8
6
5
4
3
300
400
500
600
E
g
700
1) 125-600 Amp Range
2) 35-100 & 700-1200 Amp Range
1)
2)
0.3
0.2
0.1
30 40 50
60
70
I
b
80 90 100%
460
604
700
1) 35-100 Amp Range
2) 125-600 Amp Range
3) 700-1200 Amp Range
Dimensions
Fig. 1: 5-800 Amp Range
J
Fig. 2: 900-1000 Amp Range
1.375
Fig. 3: 1200 Amp Range
3.500
0.125
0.500
5.966
A D E C
7.594
3.844
9.590 6.840
5.154
3.844
10.844
1.031
0.625
1.625
1.750
0.625
2.750
0.750
0.500
F
G
H
B
3.500
4.250
Order #
FWP-5B-30B
FWP-35B-60B
FWP-70B-100B
FWP-125A-200A
FWP-225A-400A
FWP-450A-600A
FWP-700A-800A
FWP-900A-1000A
FWP-1200A
Fig.
1
1
1
1
1
1
1
2
3
A
2.870
4.375
4.406
5.090
5.090
7.090
6.630
B
0.563
0.813
0.947
1.500
2.000
2.500
2.000
C
1.855
2.750
2.594
2.840
2.840
2.840
2.844
D
2.477
3.708
3.625
4.190
4.280
5.720
5.562
E
2.477
3.312
3.563
3.500
3.530
4.190
5.062
See Drawing
See Drawing
F
0.250
0.344
0.344
0.410
0.410
0.530
0.625
G
0.405
0.725
0.750
1.000
1.500
2.000
1.500
H
0.063
0.125
0.125
0.250
0.250
0.380
0.250
J
0.250
0.542
0.375
0.750
0.780
1.300
0.875
Dimension in inches.
1mm = 0.0394∑
1∑ = 25.4mm
The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition uncontrolled.
This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right,
without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without
notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
3-6-02
A02008
Form No. FWP 700
Page 2 of 2
Data Sheet: 720012
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