FWJ-800A Cooper/Bussmann, FWJ-800A Datasheet - Page 2

• Manufacturer Part Number: FWJ-800A
• Description: FUSE 800A 1000V
• Manufacturer: Cooper/Bussmann
• Series: FWJr
• Type: Ferruler

Specifications of FWJ-800A

• Fuse Type: Fast Acting
• Voltage - Rated: 1000VAC (1kV)
• Current: 800A
• Package / Case: Bolt Mount
• Size / Dimension: 3.500" Dia x 6.811" L (88.90mm x 173.00mm)
• Mounting Type: Bolt Mount
• Melting I²t: 500000
• Voltage Rating (vac): 1000V
• Current Rating: 800A
• Power Dissipation: 182W
• Mounting: Screw
• Product Depth (mm): Not Requiredmm
• Product Height (mm): Not Requiredmm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Color: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Compliant

7-11-01
Total Clearing I
The total clearing I
at power factor of 15% are given in the
electrical characteristics. For other volt-
ages, the clearing I
plying by correction factor, K, given as
a function of applied working voltage,
E
Dimensions
Order #
FWJ-35A-60A
FWJ-70A-100A
FWJ-125A-200A
FWJ-250A-400A
FWJ-500A-600A
FWJ-800A-2000A
Dimension in inches.
1mm = 0.0394∑
FWJ 1000V
Electrical Characteristics
Fig. 1: 35-2000 Amp Range
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.
1.5
1.0
0.5
0.3
0.2
0.15
G
g
, (RMS).
200
F
K
500
SB01191
1∑ = 25.4mm
2
2
t at rated voltage and
2
800
t is found by multi-
t
Fig.
1
1
1
1
1
1
1000
Eg
5.000
4.932
5.685
5.768
7.201
6.811
A
A
D
E
C
35-2000A
0.940
1.125
1.526
2.000
2.500
3.500
Arc Voltage
This curve gives the peak arc voltage,
U
during its operation as a function of the
applied working voltage, E
power factor of 15%.
B
2000
1600
1200
L
800
400
, which may appear across the fuse
200
U
L
3.110
3.085
3.261
3.500
3.465
3.312
J
C
600 1000 1400 1800
4.235
4.266
4.803
4.811
5.984
5.472
D
B
g
, (RMS) at a
E
g
4.180
4.156
4.055
4.150
4.706
4.962
E
H
0.352
0.352
0.445
0.433
0.562
0.625
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
is given as a function of the RMS load
current, I
1.0
0.8
0.6
0.5
0.4
0.3
0.2
0.1
F
30 40 50
K
p
b
, in % of the rated current .
0.750
1.000
1.000
1.500
2.000
2.750
G
60
Bussmann
70
0.125
0.188
0.250
0.250
0.375
0.500
80 90 100%
Form No. FWJ 1000
H
BIF Doc #720027
I
b
®
Page 2 of 2
0.380
0.407
0.819
0.764
1.201
0.880
J
p
®
†
,