T-Tron® Very Fast Acting Fuses JJN - Cooper Bussmann


Mar 17, 2004 - 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.

Bussmann®

T-Tron® Very Fast Acting Fuses

JJN

Class T 300 Volts, 1-1200 Amps Dimensional Data .88" (± 0.02) 3.06" (± 0.04)

.41" Dia. (± 0.02) 1A to 30A .88" (± 0.02)

2.03" .88" 1.25" (± 0.04)

.56" Dia. (± 0.02) 450A to 600A

35A to 60A

.284" (Typ. 2)

2.16" (± 0.02)

3.38" (± 0.04)

1.56" .84"

2.22" .92" .75" (± 0.02) 1.75" (± 0.04)

70A to100A

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 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



Carton Quantity and Weight–JJN-T-TRON (300Vac) Catalog Number

Weight**

Carton 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

.344" (Typ. 2)

2.44" (± 0.02) 1.69" .84"

601A to 800A .88" (± 0.02)

110A to 200A

.406" (Typ. 2)

.484" (Typ. 2)

4" (± 0.04) 2.53" 1.08"

2.75" (± 0.04) 1.84" .86"

2" (± 0.04) 1" (± 0.04)

225A to 400A

.562" (Typ. 2)

801A to 1200A

.609" (Typ. 2)

• 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.

Recommended fuseblocks for Class T 300V fuses See Data Sheet: 1115

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.

3-17-04

SB04092

Form No. JJN Page 1 of 2 Data Sheet: 1025

Bussmann®

T-Tron® Very Fast Acting Fuses

JJN

Class T 300 Volts, 1-1200 Amps

100,000

1200 800 600

1000A 1200A

800A

600A

400A

200A

60A

30A

300

15A

AMPERE RATING

400,000

100A

Time-Current Characteristic Curves–Average Melt B

AMPERE RATING

100

400 200 100 60 30 15

10,000

10

RMS SYMMETRICAL CURRENTS IN AMPERES A-B = ASYMMETRICAL AVAILABLE PEAK (2.3 x SYMM RMS AMPS)

TIME IN SECONDS

200,000

100,000

1,000

A 200

10,000

1,000

100

INSTANTANEOUS PEAK LET-THROUGH CURRENT IN AMPS

Current Limitation Curves

1

Custom Designs • Printed circuit board variations available. 1.743" (± .020)

.1

1.395" (± .015) .875" (± .015)

CL

A

1,000

20

.01

10,000

.500"

100

.190" MIN.

RMS SYMMETRICAL CURRENT IN AMPERES

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

B

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.

3-17-04

SB04092

Form No. JJN Page 2 of 2 Data Sheet: 1025

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