Bussmann JJS Data Sheet
T-Tron®Very Fast-Acting Fuses JJS
Class T — 600 Volt, 1 to 800 Amps
Form No. JJS
Page 1 of 2
Data Sheet: 1029
Bussmann
®
9-24-03
A03068
Catalog Numbers
JJS-1 JJS-45 JJS-200
JJS-2 JJS-50 JJS-225
JJS-3 JJS-60 JJS-250
JJS-6 JJS-70 JJS-300
JJS-10 JJS-80 JJS-350
JJS-15 JJS-90 JJS-400
JJS-20 JJS-100 JJS-450
JJS-25 JJS-110 JJS-500
JJS-30 JJS-125 JJS-600
JJS-35 JJS-150 JJS-800
JJS-40 JJS-175 —
See page 2 0f 2 for printed circuit board variations.
• Small, space-saving fuses provide a high degree of currentlimitation 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.
• Available for printed circuit board applications.
Dimensional Data
Catalog Symbol:
JJS
Current-Limiting
Very Fast-Acting
Ampere Rating:
1 to 800A
Voltage Rating: 600Vac (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
Catalog Carton
Weight*
Number Qty. Lbs. Kg.
1–30 10 0.33 0.149
35–60 10 0.82 0.371
70–100 5 0.51 0.231
110–200 1 0.192 0.087
225–400 1 0.46 0.208
450–600 1 0.85 0.385
800 1 1.65 0.748
*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 600V fuses
See Data Sheet: 1116
1.5"
(± 0.04)
Dia. .56"
(± 0.04)
Dia. .81"
(± 0.04)
.75"
(± 0.04)
.281"
(Typ. 2)
.88"
(± 0.04)
.344"
(Typ. 2)
1A to 30A
2.95"
(± 0.04)
2.36"
1.64"
70A to 100A
3.25"
(± 0.04)
2.5"
1.66"
110A to 200A
1"
(± 0.04)
1.25"
(± 0.04)
1.75"
(± 0.04)
3.63"
(± 0.04)
2.72"
1.73"
225A to 400A
3.98"
(± 0.04)
2.95"
1.78"
450A to 600A
4.33"
(± 0.04)
3.17"
1.88"
601A to 800A
.406"
(Typ. 2)
.484"
(Typ. 2)
.563"
(Typ. 2)
T-Tron®Very Fast-Acting Fuses JJS
Class T — 600 Volt, 1 to 800 Amps
Form No. JJS
Page 2 of 2
Data Sheet: 1029
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.
Current-Limitation Curves Time-Current Characteristic Curves–Average Melt
1.562"
1.432" (± .030)
.806"
.150"
(+ .020 – .000)
.806"
(± .020)
JJS-(1-30) V
Custom Designs
• Printed circuit board variations available.
UL Component Recognized
File E56412, JFHR2, 600Vac, 200,000A IR
47.88
1.885
19.05 ± .76
.750 ± .030
20.19 ± .76
.795 ± .030
12.70
.500
8.23
.324
5.08
.200
MIN.
JJS-(35-60) V
9-24-03
A03068
AMPERE
400,000
B
300
1A
3A5A10A
15A
30A
60A
100A
200A
400A
500A
600A
RATING
100,000
AMPERE
1200
800
600
400
200
10,000
100
60
30
1,000
A
200
INSTANTANEOUS PEAK LET-THROUGH CURRENT IN AMPS
A—B=ASYMMETRICAL AVAILABLE PEAK (2.3 X SYMM RMS AMPS)
100
1,000
10,000
RMS SYMMETRICAL CURRENT IN AMPERES
100,000
200,000
100
RATING
10
1
TIME IN SECONDS
.1
.01
1
10
100
CURRENT IN AMPERES
1,000
10,000
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