High Speed Fuses
North American — KBC 600V: 35-800A
Catalog Numbers (-amps)
KBC
KBC-35
KBC-40
KBC-100
KBC-110
KBC-300
KBC-350
KBC-400
KBC-450
KBC-500
KBC-600
KBC-800
Specifications
KBC-45
KBC-50
KBC-60
KBC-70
KBC-80
KBC-90
KBC-125
KBC-150
KBC-175
KBC-200
KBC-225
KBC-250
Description: North American
style stud-mount and flush-end
fuses. These 600V fuses are
supplied as replacements only.
For new installations, Cooper
Bussmann recommends the 700V
FWP series fuse.
• Consult Cooper Bussmann for dc ratings.
• See accessories on page 106.
Features and Benefits
• Excellent dc performance
• Low arc voltage and low energy let-through (I t)
• Low watts loss
Dimensions: See Dimensions
illustrations.
2
Ratings:
• Superior cycling capability
Volts:— 600Vac
Amps:— 35-800A
Typical Applications
• DC common bus
IR:— 200kA RMS Sym.
• DC drives
Agency Information: CE, UL Recognition on 35-600A only.
• Power converters/rectifiers
• Reduced voltage starters
Dimensions (in)
Amp
Range
35-60A
Fig. A
B
C
D
E
F
G
H
I
1
2
1
1
1
3
4.375 3.750 3.500 2.7500.343 0.625 0.8130.094 0.468
See Drawing
4.406 3.719 3.594 2.9060.312 0.875 1.2190.187 0.375
5.125 4.188 3.563 2.9060.406 1.000 1.5000.250 0.719
5.125 4.389 3.687 2.8750.406 1.500 2.0000.250 0.757
See Drawing
70-100A
110-200A
225-400A
450-600A
800A
Did You Know?
1mm = 0.0394” / 1” = 25.4mm
Cooper Bussmann® Paul P. Gubany
Center Receives Prestigious ASTA
Accreditation
Fig. 1: 35-60 and 110-600A
A
B
C
D
H
E
F
The Cooper Bussmann Paul P. Gubany Center in St.
Louis is certified by Britain’s prestigious ASTA
(Associated Short Circuit Testing Authority) to
perform short testing of its own devices designed to
operate to ASTA requirements which are closely tied
to IEC requirements. The Gubany Center is the only
testing facility available in North or South America
for this product certification.
G
I
Fig. 2: 70-100A
The Gubany Center has equipment capable of
generating 300,000A of current at 600Vac three-
phase, and 100,000A at 170Vdc, under carefully
controlled conditions. It offers a wider range of
current voltage and frequency configurations than
any other facility of its kind in the world, and is built
to exceed the short circuit capacity of today’s high
power electrical distribution systems.
Fig. 3: 800A
4.000
3.750
‹Ω•" - 24 ≈ ⁄Ω™"
0.750
0.750
2.859
2.500
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
100
COOPER [ COOPER BUSSMANN, INC. ]
