
Limitron Quick Acting Fuses
JKS
Class J
70-600A
600 Volt
Form No. JKS 70-600
Page 1 of 2
BIF Doc #1027
Bussmann
12-21-98
SB98107
Rev. A
6.0"
8.0"
3.75"
.69"
2.13"
.38"
.53"
2"
450A to
600A
2.5"
7.13"
5.25"
3.38"
.53"
1.63"
1.88"
.41"
*2"
.25"
225A to
400A
5.75"
4.38"
3.0"
.38"
1.38"
1.13"
.28"
.19"
1.5"
110A to
200A
4.63"
3.63"
2.63"
65A to 100A
.28"
.75"
1.13"
.13"
1"
.38"
CATALOG SYMBOL: JKS
QUICK-ACTING
70 TO 600 AMPERES
600 VOLTS AC (OR LESS) *
CURRENT LIMITING
INTERRUPTING RATING–200,000A RMS SYM.
U.L. LISTED CLASS J (GUIDE # JDDZ, FILE # E4273)
CSA HRCI-J (CLASS 1422-02, FILE # 53787)
*Contact Bussmann for DC ratings.
Catalog Numbers
JKS-70
JKS-150
JKS-350
JKS-80
JKS-175
JKS-400
JKS-90
JKS-200
JKS-450
JKS-100
JKS-225
JKS-500
JKS-110
JKS-250
JKS-600 —
Carton Quantity and Weight–JKS LIMITRON (600 Volts AC)*
Catalog
Carton
Weight**
Number
Qty
Lbs.
Kg.
70–100
5
0.28
0.127
110–200
1
0.86
0.390
225–400
1
1.78
0.807
450–600
1
3.07
1.392
**Weight per carton.
Single element, current limiting fuses provide superior short-cir-
cuit protection.
Protects low interrupting capacity circuit breakers. Limits the
short-circuit current to meet the interrupting capacity require-
ments of existing equipment.
On older systems available short circuit current may exceed the
interrupting capacity of the circuit breakers, fuses can be
installed in series with existing equipment.
Well suited for lighting and heating circuits and other non-induc-
tive loads.
Provides component short-circuit protection in compliance with
NEC 110-10, where protection devices shall clear a fault with-
out “extensive damage” to the circuit components.
High interrupting rating helps meet the requirements of future
system expansion and the increases in available utility short-
circuit current.
Fuses can easily be selectively coordinated.
Dimensional Data
Standard J Fuseblocks (600V) Catalog Data
Box Lug w/
Max. Wire
Amps
Poles
Retaining Clip
Size
70–100
3
J60100-3CR
1/0 Cu-Al
101–200
1
J60200-1CR
250MCM Cu-Al
201–400
1
J60400-1CR
500MCM Cu-Al
401–600
1
J60600-1CR
(2) 500MCM Cu-Al