FWP-300 Datasheet, PDF (2/2 Pages) Cooper Bussmann, Inc. – FWP 700V 5-1200A

Bussmann^®
FWP 700V 5-1200A
R
®
Electrical Characteristics
Total Clearing I²t
The total clearing I²t at rated voltage and
at power factor of 15% are given in the
electrical characteristics. For other volt-
ages, the clearing I²t 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
3)
0.2
0.15
316 460
604
1) 35-100 Amp Range
2) 125-600 Amp Range
3) 700-1200 Amp Range
Eg
700
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%.
2
U_L
1.6
1.4
1.2
10³
1)
8
2)
6
5
4
E_g
3
300 400 500 600 700
1) 125-600 Amp Range
2) 35-100 & 700-1200 Amp Range
Dimensions
Fig. 1: 5-800 Amp Range
J
Fig. 2: 900-1000 Amp Range
1.375
AD EC
F
G
H
B
5.966 3.844
7.594 _5.154
0.625
3.500
1.031
2.750
0.500
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 _Kp
0.8
0.6
0.5
0.4
0.3
0.2
0.1
I_b
30 40 50 60 70 80 90 100%
Fig. 3: 1200 Amp Range
3.500
0.125
0.500
9.590 6.840
3.844
10.844
4.250
0.625
1.625
1.750
0.750
Order #
Fig.
FWP-5B-30B
1
FWP-35B-60B
1
FWP-70B-100B
1
FWP-125A-200A
1
FWP-225A-400A
1
FWP-450A-600A
1
FWP-700A-800A
1
FWP-900A-1000A
2
FWP-1200A
3
Dimension in inches.
1mm = 0.0394∑ 1∑ = 25.4mm
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
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