CYLINDRICAL FUSES. 8x32. 10x38. 14x51. In REFERENCE U BREAKING CAPACITY REFERENCE U BREAKING CAPACITY PACKING (A) IEC /95/EC
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1 fuses
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3 02 gg 04 am
4 gg Cylindrical fuse links gg class for use as general protection against overloads and short circuits, intended as protection of cables, power lines and equipment. Made of ceramic tube with high withstand to internal pressure and thermal shock, that allow a high breaking capacity in a reduced physical space. The melting elements are specially designed in order to avoid aging and thus maintain unalterable the electrical characteristics. Contact caps are made of silver plated copper. Versions available with fusing indicator or with striker for use in fuse holders with microswitch. In REFERENCE U BREAKING CAPACITY REFERENCE U BREAKING CAPACITY PACKING (A) WITHOUT WITH (V) (ka) WITH (V) (ka) Uni./BOX STRIKER 8x32 0, / / / / / / / / / / x38 0, / / / / / / / / / / / / x / / / / / / / / / / / / /50 STANDARDS APPROVALS IEC t-i AND CUT-OFF CHARACTERISTICS I2t CHARACTERISTICS DC APPLICATIONS FOR PMX MODULAR AND POWER FUSE HOLDERS IEC D I R E C T I V E 2002/95/EC DISSIPATION EN EN PMC & PMX-CC FUSE HOLDERS 09 PMF MODULAR FUSE HOLDERS 10 SC SCREW FIXING & BAC OPEN FUSE HOLDERS 11 PMP PANEL MOUNTING & PMB SOCKET FUSE HOLDERS 12
5 gg In REFERENCE U BREAKING CAPACITY REFERENCE U BREAKING CAPACITY PACKING (A) WITHOUT WITH (V) (ka) WITH (V) (ka) Uni./BOX STRIKER 22x / / / / / / / / / / / / / / /50 125* /50 * Overrating fuses gg am 8x32 10x38 14x51 22x58 NEUTRAL LINKS SIZE REFERENCE PACKING Uni./BOX 8x /100 10x /100 14x /50 22x / gg DIMENSIONS SIZE A B C D E 8,5x31,5 8,5 31,5 6,3 10,3x38 10,3 38 8,5 14,3x51 14, , ,2x58 22, ,5 8 4
6 am Cylindrical fuse links am class are intended for short circuit protection in motors, transformer and other load with high inrush currents. Excellent protection of switchgear (contactor, thermal switch) due to the good current limiting capability and low I 2 t values. These fuse links must be associated to an overload device protection as a thermal switch. Made of ceramic tube with high withstand to internal pressure and thermal shock, that allow a high breaking capacity in a reduced physical space. The melting elements are silver plated in order to avoid the aging and thus keep unalterable the electric characteristics. Contacts caps are made of silver plated copper. Available versions with fusing indicator or with striker for use in fuse holders with microswitch. In REFERENCE U BREAKING CAPACITY REFERENCE U BREAKING CAPACITY PACKING (A) WITHOUT WITH (V) (ka) WITH (V) (ka) Uni./BOX STRIKER 8x / / / / / / x38 0, /100 0, /100 0, / / / / / / / / / / / x51 0, /50 0, / / / / / / / / / / / / / / /50 STANDARDS IEC IEC EN EN APPROVALS D I R E C T I V E 2002/95/EC t-i AND CUT-OFF CHARACTERISTICS 15 I 2 t CHARACTERISTICS AND POWER DISSIPATION 16 PMX MODULAR FUSE HOLDERS 06 PMC & PMX-CC FUSE HOLDERS 09 PMF MODULAR FUSE HOLDERS 10 SC SCREW FIXING & BAC OPEN FUSE HOLDERS 11 PMP PANEL MOUNTING & PMB SOCKET FUSE HOLDERS 12
7 am In REFERENCE U BREAKING CAPACITY REFERENCE U BREAKING CAPACITY PACKING (A) WITHOUT WITH (V) (ka) WITH (V) (ka) Uni./BOX STRIKER 22x / / / / / / / / / / / / / / /50 125* /50 * Overrating fuses gg am 8x32 10x38 14x51 22x58 NEUTRAL LINKS SIZE REFERENCE PACKING Uni./BOX 8x /100 10x /100 14x /50 22x / am DIMENSIONS SIZE A B C D E 8,5x31,5 8,5 31,5 6,3 10,3x38 10,3 38 8,5 14,3x51 14, , ,2x58 22, ,5 8 4
8 gg t-i CHARACTERISTICS Prearcing time (s) Prospective current (r.m.s. A) gg CUT-OFF CHARACTERISTICS Asymmetrical short-circuit Maximum value of current (ka peak) Prospective current (r.m.s. ka) 8
9 gg I 2 t CHARACTERISTICS In I 2 t Prearcing I 2 t 400 V I 2 t 500 V I 2 t 690 V (A) (A 2 S) (A 2 S) (A 2 S) (A 2 S) 0,5 4,0 8,6 10,4 15,0 1 6,5 13,2 15,7 22,0 2 7,0 14,6 17,6 25, gg POWER DISSIPATION SIZE In 8,5x32 10x38 14x51 22x58 (A) (VW) (VW) (VW) (VW) 0,5 1,2 1,43 1 2,0 2,77 3,90 2 0,5 0,60 0,90 1,00 4 0,8 0,70 1,00 1,10 6 1,1 0,85 1,15 1,30 8 1,3 0,75 1,00 1, ,0 1,00 1,30 1, ,2 1,30 1,70 1, ,5 1,60 2,00 2, ,0 2,00 2,50 2, ,60 3,30 3, ,90 3,50 3, ,75 4, ,80 5, , , , ,4 9
10 am t-i CHARACTERISTICS Prearcing time (s) Prospective current (r.m.s. A) am CUT-OFF CHARACTERISTICS Asymmetrical short-circuit Maximum value of current (ka peak) Prospective current (r.m.s. ka) 10
11 am I 2 t CHARACTERISTICS In I 2 t Prearcing I 2 t 400 V I 2 t 500 V I 2 t 690 V (A) (A 2 S) (A 2 S) (A 2 S) (A 2 S) 0,16 3,0 6,7 8,2 12,0 0,25 4,0 8,6 10,4 15,0 0,5 6,5 13,2 15,7 22,0 1 9,5 18,5 21,9 30, am POWER DISSIPATION SIZE In 8,5x32 10x38 14x51 22x58 (A) (VW) (VW) (VW) (VW) 0,16 0,24 0,25 0,36 0,41 0,5 0,49 0,69 1 0,10 0,10 0,14 2 0,16 0,18 0,24 0,29 4 0,25 0,31 0,45 0,48 6 0,35 0,32 0,42 0,47 8 0,40 0,52 0,70 0, ,65 0,55 0,53 0, ,63 0,88 0, ,92 1,16 1, ,96 1,23 1, ,40 1,46 1, ,04 2, ,60 3, , ,90 3, , , , ,42 11
12 gg DC APLICATIONS Fuses are generally suitable for both AC and DC applications. The DC performance of fuse-links is different and AC ratings cannot be used for DC applications. There is no simple rule that safely converts an AC voltage rating of a fuse-link to DC voltage rating. For this reason it is necessary to take into account a lot of aspects in order to determine the DC applications. In the DF ELECTRIC gg cylindrical fuses it is necessary to take into account the following considerations: The power dissipations are the same in AC (RMS value) and the DC values. The time current characteristics are the same for DC applications under steady-state conditions. The DC rated voltage and maximum breaking capacity are lower than the AC values (see the table). SIZE RATED CURRENT MAX. DC VOLTAGE DC BREAKING CAPACITY 8,5x31,5 10x38 14x51 22x58 0,5A...10A 12A...20A 0,5A...16A 20A...32A 1A...25A 32A & 40A 50A 2A...63A 80A & 100A 125A 150V DC 60V DC 250V DC 80V DC 440V DC 80V DC 48V DC 440V DC 80V DC 48V DC 5 ka 15 ka 15 ka 15 ka NOTES These values are referred to a time constant L/R = 15 ms. For higher values of time constant, the maximum utilization voltage must be reduced. For circuits with very inductive behaviour, we recommend to connect two fuses in series.
13 THE PROTECTION FORMULA ELECTRONIC PHOTOVOLTAIC RAPIDPLUS NH SPECIAL DOMESTIC D & DO TRANSFORMERS experts in PROTECTION
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