Bussmann Micro fuse 22 mm x 58 mm 50 A 690 Vac Very quick acting -FF- FWP-50A22FI Content 1 pc(s) FWP-50A22FI Scheda Tecnica
Codici prodotto
FWP-50A22FI
7-18-01
SB01191
Form No. FWP
Page 1 of 1
BIF Doc #720026
Bussmann
®
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.
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.
®
Ferrule
FWP 660V/700V (IEC/U.L.)
20-100A
Dimensions
K
1.4
1.2
1.0
0.6
0.8
0.7
0.7
0.9
0.5
0.4
0.3
200
300
400
500
600
700
E
g
U
L
1.4
1.2
10
3
6
8
7
7
9
5
4
3
200
300
400
500
600
700
E
g
K
p
1.0
0.8
0.8
0.4
0.5
0.6
0.3
0.2
0.1
30 40 50
60
70
80 90 100%
I
b
58.0
(2.283")
15.0
(0.591")
22.2
(0.875")
Electrical Characteristics
Ordering Information
Dimensions
Curves
Rated
I
2
t (A
2
S)
Carton
Current
Clearing
Watts
Part
Carton
Weight
Figure
Size
RMS-Amps
Pre-arc
at 660V
Loss
Number
Qty.
(kg)
Number
BIF #
20
23
260
4.6
FWP-20A22F
25
37
410
5.6
FWP-25A22F
32
55
605
7.0
FWP-32A22F
22 ≈ 58mm
40
68
750
8.5
FWP-40A22F
10
0.450
Fig. 1
35785291
(‡Ω•∑)
50
155
1600
9.5
FWP-50A22F
63
280
3080
11
FWP-63A22F
80
600
6600
13.5
FWP-80A22F
100
1100
12500
16
FWP-100A22F
n
Interrupting rating 200kA RMS Symmetrical.
1 kg = 2.2 lbs. 1 lb = 0.45 kg
n
Watts loss provided at rated current.
n
(500 Vdc/Interrupting rating 50kA) U.L. Recogition.
Fig. 1: 20-100 Amp Range
Dimension in mm.
1mm = 0.0394∑ 1∑ = 25.4mm
1mm = 0.0394∑ 1∑ = 25.4mm
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
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
a function of applied working voltage,
E
g
, (RMS).
Arc Voltage
This curve gives the peak arc voltage,
U
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
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
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
current, I
b
, in % of the rated current .
Electrical Characteristics