available with optional open fuse indication. Time-
delay – 10 seconds (minimum) at 500% of rated
current.
1.13"
0.28"
0.53"
2"
2.5"
0.38"
Specifications:
Ratings
•
Features:
•
Volts
•
600Vac
•
Industry’s only UL Listed and CSA Certified fuse
with a 300kA interrupting rating that allows for
simple, worry-free installation in virtually any
application.
Fast short-circuit protection and dual-element,
time-delay performance provide ultimate
protection.
Reduces existing fuse inventory by up to 33%
when upgrading to Low-Peak fuses.
Consistent 2:1 ampacity ratios for all Low-Peak
fuses make selective coordination easy.
Long time-delay minimizes needless fuse openings
due to temporary overloads and transient surges.
Current-limitation protects downstream
components against damaging thermal and
magnetic effects of short-circuit currents.
Dual-element fuses have lower resistance than
ordinary fuses so they run cooler.
Can often be sized for back-up protection against
motor burnout from overload or single-phasing if
other overload protective devices fail.
Proper sizing can provide “no damage” Type 2
coordinated protection for NEMA
®
and IEC
®
motor
controllers.
Space-saving package for equipment downsizing.
300Vdc
•
•
•
Amps 70-600A
IR
•
•
300kA Vac RMS Sym.
•
•
•
•
100kA Vdc
Agency information
•
•
•
•
UL
®
Listed, Guide JDDZ, File E4273
CSA
®
Certified, Class 1422-02, File 53787,
Class J per CSA C22.2 No. 248.8
CE
RoHS compliant
•
•
•
•
Technical Data 1007
Effective February 2016
Low-Peak™ LPJ Class J 600Vac/300Vdc, 70-600A,
dual element, time-delay fuses
Time-current curves - average melt:
3-Pole
Recommended fuse blocks:
Fuse amps
70-100
110-200
225-400
450-600
1-Pole
JM60100-1CR
JM60200-1CR
JM60400-1CR
JM60600-1CR
2-Pole
JM60100-2CR
JM60200-2CR
JM60400-2CR
JM60600-2CR
JM60100-3CR
JM60200-3CR
JM60400-3CR
JM60600-3CR
200A
250A
80A
100A
125A
400A
600A
300
200
100
AMP RATING
For additional information on the JM fuse blocks, see product
brochure no. 3192.
Fuse reducers for Class J fuses:
Equipment fuse clips
Desired fuse
(case) size
Catalog numbers
(pairs)
100A
200A
400A
600A
† Not for bolt-in applications.
30A
60A
60A
100A
100A
200A
200A
400A
J-13
J-16
J-26†
J-21†
J-41†
J-42†
J-62†
J-64†
10
TIME IN SECONDS
1
0.1
0.01
CURRENT IN AMPS
10,000
1000
100
2
Eaton.com/bussmannseries
Low-Peak™ LPJ Class J 600Vac/300Vdc, 70-600A,
dual element, time-delay fuses
Current-limitation curves:
100000
90000
80000
70000
60000
50000
40000
30000
20000
Technical Data 1007
Effective February 2016
Current-limiting effects:
B
600A
400A
200A
100A
AMP RATING
Let-through current
Prospective (apparent RMS symmetrical vs. fuse rating)
S.C.C..
100A
200A
400A
1000
3000
5000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
50,000
60,000
80,000
100,000
150,000
200,000
250,000
300,000
1000
2000
2000
2000
3000
3000
3000
3000
4000
4000
4000
4000
5000
5000
6000
6000
7000
7000
1000
2000
3000
4000
4000
4000
5000
5000
5000
6000
6000
6000
7000
8000
9000
9000
10,000
11,000
1000
3000
5000
6000
7000
7000
8000
8000
9000
9000
10,000
11,000
12,000
12,000
14,000
16,000
17,000
18,000
600A
1000
3000
5000
8000
9000
10,000
10,000
11,000
12,000
12,000
13,000
14,000
15,000
17,000
19,000
21,000
23,000
24,000
INSTANTANEOUS PEAK-LET-THROUGH CURRENT IN AMPS
10000
9000
8000
7000
6000
5000
4000
3000
2000
1000
900
800
700
600
500
400
300
200
A
100
60,000
70,000
80,000
90,000
100,000
200,000
300,000
6000
7000
8000
9000
10,000
20,000
30,000
40,000
50,000
600
700
800
900
1000
2000
3000
4000
5000
100
200
300
400
500
RMS SYMMETRICAL CURRENT IN AMPS
A-B = ASYMMETRICAL AVAILABLE PEAK (2.3 X SYM RMS AMPS)
Eaton.com/bussmannseries
3
Technical Data 1007
Effective February 2016
Low-Peak™ LPJ Class J 600Vac/300Vdc, 70-600A,
dual element, time-delay fuses
The only controlled copy of this data sheet is the electronic read-only version located on the Eaton 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. Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or
limit distribution of any products. Eaton 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.
