Bussmann®
North American
1000-4000A
FWA 130V
®
Electrical Characteristics
Ordering Information
I2t (A2 Sec)
Rated
Current
Clearing
Watts
Part
Carton
RMS-Amps
Pre-arc
at 130V
Loss
Number
Qty.
1000
170000
460000
60
FWA-1000AH
______________________________________________________________________________________
Type
Dimensions
Curves
Carton
Weight
(lbs)
Figure
Number
See Page
3.3
Fig. 1
1200
270000
730000
70
FWA-1200AH
______________________________________________________________________________________
1500
520000
1400000
78
FWA-1500AH
______________________________________________________________________________________
FWA
2000
860000
2400000
108
FWA-2000AH
130V ______________________________________________________________________________________
2500
1500000
4100000
130
FWA-2500AH
______________________________________________________________________________________
3000
2100000
5700000
150
FWA-3000AH
______________________________________________________________________________________
4000
3400000
9200000
257
page 21
1
______________
Fig. 2
FWA-4000AH
Interrupting rating 200kA RMS Symmetrical.
Watts loss provided at rated current.
(130 Vdc/Interrupting Rating 50kA) U.L. Recognition on 1000 through 2000 amperes.
See accessories on page 20.
1 kg = 2.2 lbs
1 lb = 0.45 kg
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 voltages, the clearing I2t is found by multiplying 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%.
1.5
K
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, Ib , in % of the rated current .
1.0
Kp
0.8
UL
1.0
0.6
0.5
300
0.4
0.5
0.2
0.3
0.2
0.15
26
0.3
200
100
Eg
Eg
65
104
130
50
100
Ib
0.1
150
30 40 50
60
70
80 90 100%
BIF document: 720001
6
For complete specification data, visit our Web site at www.bussmann.com
or call Bussmann Information Fax ~ 636.527.1450
Bussmann®
North American
FWA 130V
1000-4000A
®
Dimensions
Fig. 1: 1000-3000 Amp Range
Fig. 2: 4000 Amp Range
1.875
1.875
D
B
B
C
Order #
FWA-1000AH-2000AH
FWA-2500AH-3000AH
FWA-4000AH
Fig.
1
1
2
B
2.0
3.0
3.5
C
1.0
1.5
1.5
D
—
—
1.5
C
Thread Depth
Tapped ‹Ω•∑-24 ≈ ⁄Ω™∑
Tapped ⁄Ω™∑-20 ≈ ⁄Ω™∑
Tapped ⁄Ω™∑-20 ≈ ⁄Ω™∑
Dimension in inches.
1mm = 0.0394∑
1∑ = 25.4mm
BIF document: 720001
For complete specification data, visit our Web site at www.bussmann.com
or call Bussmann Information Fax ~ 636.527.1450
7
Bussmann®
North American
70-1000A
FWA 150V
Rated
Current
RMS-Amps
Type
®
Electrical Characteristics
I2t (A2 Sec)
Clearing
Pre-arc
at 150V
Ordering Information
Watts
Loss
Part
Number
Dimensions
Carton
Qty.
Carton
Weight
(lbs)
Figure
Number
1
1.76
Fig. 1
Curves
See Page
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
_____________________________________________________________________________________
200
4780
45000
17.6
FWA-200B
_____________________________________________________________________________________
page 21
250
7470
70000
22.5
FWA-250B
_____________________________________________________________________________________
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
Fig. 2
800
92000
280000
58.0
FWA-800A
_____________________________________________________________________________________
1000
170000
510000
60.0
FWA-1000A
Interrupting rating 100kA RMS Symmetrical for ampere ratings 70-400.
Interrupting rating 200kA RMS Symmetrical for ampere ratings 450-1000.
Watts loss provided at rated current.
(150 Vdc/Interruting rating 20kA) U.L. Recognition on 70- 800 amperes.
(80 Vdc/Interruting rating 100kA) U.L. Recognition on 70-400 amperes.
See accessories on page 20.
1 kg = 2.2 lbs
1 lb = 0.45 kg
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 voltages, the clearing I2t is found by multiplying by correction factor, K, given as
a function of applied working voltage,
E g , (RMS).
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, Ib , in % of the rated current .
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%.
1.5
K
1.0
Kp
0.8
UL
1.0
0.6
0.5
300
0.4
0.5
1)
200
2)
100
0.3
0.2
0.3
0.2
0.15
22
Eg
Eg
70
102
150
Ib
0.1
50
100
150
30 40 50
60
70
80 90 100%
1) 500-1000 Amp Range
2) 70-400 Amp Range
BIF document: 720002
8
For complete specification data, visit our Web site at www.bussmann.com
or call Bussmann Information Fax ~ 636.527.1450
Bussmann®
North American
FWA 150V
70-1000A
Dimensions
Fig. 1: 70-400 Amp Range
2.656
2.188
1.936
1.156
0.125
0.750 0.312
1.000
0.438
Fig. 2: 500-1000 Amp Range
3.500
2.438
1.250
1.000
0.250
1.500
0.406
Dimension in inches.
1mm = 0.0394∑
1∑ = 25.4mm
BIF document: 720002
For complete specification data, visit our Web site at www.bussmann.com
or call Bussmann Information Fax ~ 636.527.1450
9
Bussmann®
North American
Curves
FWX 250V (35-800)A
FWX 250V (1000-2500)AH
Time-Current Curve
Time-Current Curve
104
6
4
104
2
103
FWX-200A
FWX-350A
FXW-400A
FWX-500A
FWX-600A
FWX-800A
102
2
FWX-1000AH
FWX-1200AH
FWX-1500AH
FWX-1600AH
FWX-2000AH
FWX-2500AH
102
6
4
101
2
100
Virtual Pre-Arcing Time In Seconds
Virtual Pre-arcing Time In Seconds
103
6
4
FWX-35A
FWX-40A
FWX-60A
FWX-70A
FWX-100A
FWX-150A
10–1
10–2
10–3
101
6
4
2
100
6
4
2
10–1
6
4
10–4
2
102
103
Prospective Current In Ampere RMS
2
104
10–2
6
4
2
10–3
6
4
2
10–4
2
103
Peak Let-Through Curve
4
6 8
2
4
6
104
Prospective Current In Amperes RMS
8
105
Peak Let-Through Curve
105
105
B
6
FWX-2500AH
4
Peak Let-Through Current
FWX-800A
FWX-600A
FWX-400A
FWX-300A
FWX-200A
Peak Let-Through Current
104
FWX-2000AH
FWX-1600AH
FWX-1500AH
FWX-1200AH
2
FWX-1000AH
104
6
4
2
10
3
FWX-150A
FWX-100A
FWX-70A
FWX-60A
FWX-45A
FWX-35A
A
102
102
103
104
103
103
2
4
6
104
2
4
6
105
2
Prospective Short-Circuit Current Symmetrical RMS
105
Prospective Short-Circuit Current Symmetrical RMS
BIF document: 359
22
BIF document: 35785299
For complete specification data, visit our Web site at www.bussmann.com
or call Bussmann Information Fax ~ 636.527.1450
4
6