Technical Data 1025
Effective December 2016
Supersedes August 2013
JJN Limitron™ 300Vac, 1-1200A,
fast-acting Class T fuses
Agency Information
•
UL
®
Listed, Std. 248-15, Class T, Guide JDDZ,
File E4273
CSA
®
Certified, C22.2 No. 248.15, Class 1422-
02, File 53787
CE
RoHS compliant
•
•
•
Catalog numbers (amps)
JJN-1
JJN-35
JJN-110
JJN-2
JJN-40
JJN-125
JJN-3
JJN-45
JJN-150
JJN-6
JJN-50
JJN-175
JJN-10
JJN-60
JJN-200
JJN-15
JJN-70
JJN-225
JJN-20
JJN-80
JJN-250
JJN-25
JJN-90
JJN-300
JJN-30
JJN-100
JJN-350
JJN-400
JJN-450
JJN-500
JJN-600
JJN-700
JJN-800
JJN-1000
JJN-1200
Catalog Symbol:
•
Carton quantity:
Amp rating
Up to 60
70–100
110–1200
Carton qty.
10
5
1
JJN-(amp)
Description:
Eaton’s Bussmann™ series Limitron™ advanced
protection Class T current -limiting, fast-acting
fuses.
Features:
•
Specifications:
Ratings
•
•
Provides 10X better current limitation to help
prevent equipment damage caused by short-
circuit events.
200 kA interrupting rating complies with NEC
®
Section 110.9 for today’s large capacity systems.
Fast-acting fuse helps prevent equipment
damage caused by short-circuit events.
Small, space-saving fuses provide a high
degree of current limitation on short-circuits for
excellent component protection.
Ideal for critical industrial or commercial
applications that have specific current limitation
requirements.
Volts
•
300 Vac (1-10 A)
•
•
•
300 Vac, 160 Vdc (15-600 A)
300 Vac, 170 Vdc (700-1200 A)
•
•
•
Amps — 1-1200 A
IR
•
•
•
•
200kA Vac RMS Sym.
20kA Vdc (15-600 A)
100kA Vdc (700-1200 A)
Recommended fuse blocks*
Fuse
amps
up to 30
35-60
70-100
110-200
200
225-400
450- 600
1-pole
—
—
—
T30200-1_
1B0083
T30400-1_
T30600-1_
2-pole
T30030-2_
T30060-2_
T30100-1_
—
—
—
—
3-pole
T30030-3_
T30060-3_
T30100-2_
—
—
—
—
4-Pole
T30030-4_
T30060-4_
T30100-3_
—
—
—
—
* For additional information, see data sheet no. 1115.
Technical Data
Effective 2016
JJN — 300Vac, 1-1200A, fast-acting Class T fuses
Current-limitation curves
INSTANTANEOUS PEAK-LET-THROUGH CURRENT IN AMPS
400,000
300,000
200,000
100,000
80,000
60,000
40,000
30,000
20,000
10,000
8000
6000
4000
3000
2000
1000
800
600
400
300
200
Current-limiting effects
B
AMP RATING
Prosp.
S.C.C. Let-through current (apparent RMS Sym. vs. fuse rating)
—
15 A
30 A
60 A
100 A 200 A 400 A 600 A 800 A
500
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
5000
1000
1000
1000
1000 2000 3000 5000 5000
10,000
1000
1000
1000 2000 2000 4000 6000 7000
15,000
1000
1000
1000 2000 3000 4000 6000 9000
20,000
1000
1000
1000 2000 3000 5000 7000 10,000
25,000
1000
1000 2000 2000 3000 5000 7000 10,000
30,000
1000
1000 2000 2000 3000 5000 8000 11,000
35,000
1000
1000 2000 3000 4000 6000 8000 11,000
40,000
1000
1000 2000 3000 4000 6000 9000 11,000
50,000
1000
1000 2000 3000 4000 7000 9000 12,000
60,000
1000
1000 2000 3000 4000 7000 10,000 13,000
70,000
1000
1000 2000 3000 5000 7000 10,000 14,000
80,000
1000 2000 2000 3000 5000 8000 11,000 15,000
90,000
1000 2000 2000 3000 6000 8000 11,000 15,000
100,000
1000 2000 2000 4000 6000 8000 12,000 16,000
150,000
1000 2000 3000 4000 6000 9000 13,000 17
,000
200,000 2000 2000 3000 4000 7000 9000 15,000 19,000
1200
800
600
400
200
100
60
30
15
1200 A
1000
1000
5000
9000
10,000
11,000
12,000
13,000
13,000
13,000
15,000
16,000
17
,000
17
,000
18,000
19,000
22,000
23,000
A
600
800
1000
2000
3000
4000
6000
8000
10,000
100
200
300
400
20,000
30,000
40,000
60,000
80,000
100,000
200,000
RMS SYMMETRICAL CURRENT IN AMPS
A-B = ASYMMETRICAL AVAILABLE PEAK (2.3 X SYM RMS AMPS)
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.
Eaton
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Bussmann Division
114 Old State Road
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© 2016 Eaton
All Rights Reserved
Printed in USA
Publication No. 1025 — BU-SB13734
December 2016
Eaton, Bussmann and Limitron are valuable
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