T-Tron®Very Fast-Acting Fuses JJS
Class T — 600 Volt, 1 to 800 Amps
Form No. JJS
Page 1 of 2
BIF Doc #1029
Bussmann®
3-21-01 A00226
3.98"
(± 0.04)
2.95"
1.78"
1.25"
(± 0.04)
450A to 600A
3.63"
(± 0.04)
2.72"
1.73"
1"
(± 0.04)
225A to 400A
601A to 800A
4.33"
(± 0.04)
3.17"
1.88"
1.75"
(± 0.04)
.88"
(± 0.04)
3.25"
(± 0.04)
2.5"
1.66"
110A to 200A
Dia. .56"
(± 0.04) 1A to 30A
1.5"
(± 0.04)
Dia. .81"
(± 0.04) 35A to 60A
1.56"
(± 0.04)
.75"
(± 0.04)
2.95"
(± 0.04)
2.36"
1.64"
70A to 100A
.344"
(Typ. 2)
.563"
(Typ. 2)
.484"
(Typ. 2)
.406"
(Typ. 2)
.281"
(Typ. 2)
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 —
• 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: JJS
Current-Limiting
Very Fast-Acting
Ampere Rating: 1 to 800 Amperes
Voltage Rating: 600 Volts AC (or less)*
Interrupting Rating: 200,000A RMS Sym.
Agency Approval:
U.L. 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
*15-400A rated 300 Vdc and 10 KAIC.
**Weight per carton.
Standard T Fuseblocks (600V) Catalog Data
Catalog Numbers
Amps Poles Screw Box Lug
11 T60030-1SR T60030-1CR
to 2 T60030-2SR T60030-2CR
30 3 T60030-3SR T60030-3CR
31 1 T60060-1SR T60060-1CR
to 2 T60060-2SR T60060-2CR
60 3 T60060-3SR T60060-3CR
61 1 — T60100-1CR
to 2 — T60100-2CR
100 3 — T60100-3CR
101-200 1 — T60200-1C
3 — 1B0089
201-400 1 — T60400-1C
401-600 1 — T60600-1C
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000 Vac, 75-1500 Vdc). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
T-Tron®Very Fast-Acting Fuses JJS
Class T — 600 Volt, 1 to 800 Amps
Form No. JJS
Page 2 of 2
BIF Doc #1029
Bussmann®
The only controlled copy of this BIF document 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 con-
tained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
600
400
200
100
60
30
AMPERE
RATING
800
1200
INSTANTANEOUS PEAK LET-THROUGH CURRENT IN AMPS
100,000
10,000
1,000
200
100
1,000
10,000
100,000
200,000
400,000 B
A
RMS SYMMETRICAL CURRENT IN AMPERES
A–B=ASYMMETRICAL AVAILABLE PEAK (2.3 X SYMM RMS AMPS)
1A
3A
5A
10A
30A
15A
60A
200A
400A
500A
100A
800A
AMPERE
RATING
10,000
1,000
100
10
1
300
100
10
1
.1
.01
CURRENT IN AMPERES
TIME IN SECONDS
Current-Limitation Curves Time-Current Characteristic Curves–Average Melt
1.562"
1.432" (± .030)
.806"
.150"
(+ .020 – .000)
.806"
(± .020)
JJS-35-60
JJS-1-30
Custom Designs
• Printed circuit board variations available.
U.L. Component Recognized
File E56412, JFHR2, 600Vac, 200,000 Amp 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.
3-21-01 A00226
