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" .484" (Typ. 2) .75" (± 0.02) 1.75" (± 0.04) 70A to100A Catalog Symbol: JJN Current Limiting Very Fast Acting Ampere Rating: 1 to1200 Amperes Voltage Rating: 300 Volts AC (or less)* Interrupting Rating: 200,000A RMS Sym. Agency Approval: 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 — .344" (Typ. 2) 4" (± 0.04) 2.53" 1.08" 110A to 200A .406" (Typ. 2) .562" (Typ. 2) 601A to 800A .88" (± 0.02) 2.75" (± 0.04) 1.84" .86" 2" (± 0.04) 1" (± 0.04) .609" (Typ. 2) 801A to 1200A 225A to 400A • 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. Standard T Fuseblocks (300V) Catalog Data Catalog Numbers Amps Carton Quantity and Weight–JJN-T-TRON (300 Volts AC) 2.44" (± 0.02) 1.69" .84" Poles Screw Box Lug ⁄Ω™ 2 T30030-2SR T30030-2CR Carton Qty. to 3 T30030-3SR T30030-3CR Lbs. Kg. 30 4 T30030-4SR T30030-4CR 1–30 10 0.12 0.054 31 2 T30060-2SR T30060-2CR 35–60 10 0.23 0.104 to 3 T30060-3SR T30060-3CR 70–100 5 0.36 0.163 60 4 T30060-4SR T30060-4CR 110–200 1 0.14 0.063 61 1 – T30100-1CR 225–400 1 0.25 0.113 to 2 – T30100-2CR 450–600 1 0.44 0.200 100 3 – T30100-3CR 700–800 1 0.80 0.363 101 to 1 – T30200-1C 200 3 – 1B0083 201 to 400 1 – T30400-1C 401 to 600 1 – T30600-1C Catalog Number Weight** 1000–1200 1 1.45 0.658 *15-100A rated 300 VDC, 101-600A rated 160 VDC, 801-1200A rated 170 VDC and 10 KAIC. **Weight per carton. 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. 11-27-00 A00178 Form No. JJN Page 1 of 2 BIF Doc #1025 Bussmann® T-Tron® Very Fast Acting Fuses JJN Class T 300 Volts, 1-1200 Amps 1200 800 600 1000A 1200A 800A 600A 400A 200A 60A 30A AMPERE RATING 100,000 300 15A B 100A Time-Current Characteristic Curves–Average Melt 400,000 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 Fuse JJN-(1-30)L JJN-(35-60)L 1,000 20 .01 10,000 .500" 100 1.90" MIN. RMS SYMMETRICAL CURRENT IN AMPERES A 0.406 0.563 The JJN-XXL products are UL Component Recognized under File E-56412 .125" 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 contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. 11-27-00 A00178 Form No. JJN Page 2 of 2 BIF Doc #1025