T-Tron®Very Fast Acting Fuses JJN
Class T
300 Volts, 1-1200 Amps
Form No. JJN
Page 1 of 2
Data Sheet: 1025
Bussmann
®
3-17-04
SB04092
Catalog Numbers
JJN-1 JJN-50 JJN-250
JJN-2 JJN-60 JJN-300
JJN-3 JJN-70 JJN-350
JJN-6 JJN-80 JJN-400
JJN-10 JJN-90 JJN-450
JJN-15 JJN-100 JJN-500
JJN-20 JJN-110 JJN-600
JJN-25 JJN-125 JJN-700
JJN-30 JJN-150 JJN-800
JJN-35 JJN-175 JJN-1000
JJN-40 JJN-200 JJN-1200
JJN-45 JJN-225 —
• Small, space-saving fuses provide a high degree of current
limitation on short-circuits for excellent component protection.
• Commonly applied in electric heat circuits, load center,
disconnect switches, and meters.
• The small size of the T-Tron fuses permits installation in
panelboards and control centers for system upgrading when
existing circuit breakers cannot safely interrupt larger available
short-circuit currents.
• High speed of response for semiconductor protection.
Dimensional Data
Catalog Symbol: JJN
Current Limiting
Very Fast Acting
Ampere Rating: 1 to1200A
Voltage Rating: 300Vac (or less)*
Interrupting Rating: 200,000A RMS Sym.
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
Carton Quantity and Weight–JJN-T-TRON (300Vac)
Catalog Carton
Weight**
Number Qty. Lbs. Kg.
1–30 10 0.12 0.054
35–60 10 0.23 0.104
70–100 5 0.36 0.163
110–200 1 0.14 0.063
225–400 1 0.25 0.113
450–600 1 0.44 0.200
700–800 1 0.80 0.363
1000–1200 1 1.45 0.658
*15-600A rated 160Vdc, 601-1200A rated 170Vdc and 10 KAIC.
**
Weight per carton.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000Vac, 75-1500Vdc). Refer to Data Sheet: 8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Recommended fuseblocks for
Class T 300V fuses
See Data Sheet: 1115
.88"
(± 0.02)
3.06"
(± 0.04)
2.03"
.88"
450A to 600A
3.38"
(± 0.04)
2.22"
.92"
601A to 800A
(± 0.04)
2.53"
1.08"
801A to 1200A
1.25"
(± 0.04)
.484"
(Typ. 2)
1.75"
(± 0.04)
.562"
(Typ. 2)
4"
2"
(± 0.04)
.609"
(Typ. 2)
.41" Dia.
(± 0.02)
1A to 30A
.88"
(± 0.02)
.56" Dia.
(± 0.02)
35A to 60A
2.16"
(± 0.02)
.284"
(Typ. 2)
.344"
(Typ. 2)
.406"
(Typ. 2)
1.56"
.84"
70A to100A
2.44"
(± 0.02)
1.69"
.84"
110A to 200A
2.75"
(± 0.04)
1.84"
.86"
225A to 400A
.75"
(± 0.02)
.88"
(± 0.02)
(± 0.04)
1"
Form No. JJN
Page 2 of 2
Data Sheet: 1025
Bussmann
®
The only controlled copy of this Data Sheet 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.
T-Tron®Very Fast Acting Fuses JJN
Class T
300 Volts, 1-1200 Amps
Current Limitation Curves Time-Current Characteristic Curves–Average Melt
Custom Designs
• Printed circuit board variations available.
Fuse A B
JJN-(1-30)L 0.406 .125
JJN-(35-60)L 0.563 .125
JJN-(35-60)L-01 0.563 .165
The JJN-XXL products are UL Component Recognized under File E-56412
3-17-04
SB04092
400,000
B
60A
100A
300
15A
30A
200A
400A
600A
800A
1200A
1000A
AMPERE
RATING
100,000
10,000
1,000
A
200
INSTANTANEOUS PEAK LET-THROUGH CURRENT IN AMPS
100
1,000
10,000
100,000
RMS SYMMETRICAL CURRENTS IN AMPERES
A-B = ASYMMETRICAL AVAILABLE PEAK (2.3 x SYMM RMS AMPS)
1.743" (± .020)
1.395" (± .015)
.875" (± .015)
AMPERE
RATING
1200
800
600
400
200
100
60
30
15
200,000
100
10
1
TIME IN SECONDS
.1
.190"
MIN.
C
L
.500"
.01
A
20
RMS SYMMETRICAL CURRENT IN AMPERES
100
1,000
B
10,000
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