LIMITRON™ 300V Class T
JJN — 300Vac, 1-1200A, Fast-Acting Fuses
Dimensions – in
0.88"
( 0.02)
3.06"
.41" Dia.
( 0.04)
( 0.02)
1 to 30A
2.03"
0.88"
0.88"
( 0.02)
1.25"
0.56" Dia.
( 0.02)
( 0.04)
0.484"
450 to 600A
35 to 60A
(Typ. 2)
3.38"
2.16"
( 0.04)
( 0.02)
2.22"
0.92"
1.56"
0.84"
0.284"
Description: Advanced protection Class T current -limiting,
fast-acting fuses.
(Typ. 2)
0.75"
( 0.02)
1.75"
( 0.04)
70 to 100A
Catalog Symbol: JJN-(amp)
Ratings:
2.44"
( 0.02)
0.562"
(Typ. 2)
601 to 800A
1.69"
0.84"
0.344"
Volts — 300Vac (1-10A)
(Typ. 2)
4"
0.88"
— 300Vac, 160Vdc (15-600A)
— 300Vac, 170Vdc (700-1200A)
Amps — 1-1200A
( 0.04)
2.53"
1.08"
( 0.02)
110 to 200A
2.75"
( 0.04)
1.84"
2"
( 0.04)
IR — 200kA Vac RMS Sym.
— 20kA Vdc (15-600A)
0.406"
0.86"
(Typ. 2)
1"
( 0.04)
0.609"
— 100kA Vdc (700-1200A)
801 to 1200A
225 to 400A
(Typ. 2)
Agency Information:
Features:
CE, UL Listed, Std. 248-15, Class T, Guide JDDZ, File E4273
CSA Certified, C22.2 No. 248.15, Class 1422-02, File 53787
Catalog Numbers (amps)
• 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 JJN Class T fuses permits installation
in panelboards and control centers for system upgrading
when existing circuit breakers cannot safely interrupt larger
available short-circuit currents
JJN-1
JJN-2
JJN-3
JJN-6
JJN-10
JJN-15
JJN-20
JJN-25
JJN-30
JJN-35
JJN-40
JJN-45
JJN-50
JJN-60
JJN-70
JJN-80
JJN-90
JJN-100
JJN-110
JJN-125
JJN-150
JJN-175
JJN-200
JJN-225
JJN-250
JJN-300
JJN-350
JJN-400
JJN-450
JJN-500
JJN-600
JJN-700
JJN-800
JJN-1000
JJN-1200
• High speed of response for semiconductor protection
Recommended Fuse Blocks
Fuse Amps
½-30
35-60
70-100
110-200
200
225-400
450- 600
1-Poles
—
2-Pole
T30030-2_
T30060-2_
T30100-1_
—
3-Pole
T30030-3_
T30060-3_
T30100-2_
—
4-Pole
T30030-4_
T30060-4_
T30100-3_
—
—
—
T30200-1_
1B0083
T30400-1_
T30600-1_
Carton Quantity and Weight
—
—
—
—
—
—
—
—
—
Amp Rating
1–30
35–60
Carton Qty.
10
10
5
For additional information on 300 volt Class T fuse blocks, see
Data Sheet # 1115.
70–100
110–200
225–400
450–600
700–800
1000–1200
1
1
1
1
1
0713
BU-SB13734
Page 1 of 3
Data Sheet # 1025