Low Voltage Fuses
54Pages

European NH Knife-Blade Fuse System General > p (sym.r.m.s.),depending on the moment of energizeing and the value of the d. c. component of that short circuit.High short circuit currents do not rise up to theirpeak value when SIBA LV-fuse-links of a correspon- ding rated current are used. The current limiting effect starts at melting times of less than 5 m. s.The current limiting diagram shows the behaviour ofthe prospective short circuit current I Users demands for maximum service reliability inlow voltage networks, coupled with effective and economic operation, places considerable quality...

European NH Knife-Blade Fuse System The discrimination between two fuse links of diffe-rent current ratings can only be determined when considering the service voltage. The degree of discri- mination in radially operated systems of 1:1.6, as well as the use of fuse links of the same rated cur- rent in meshed networks, is only applicable at servi-ce voltages 1.1 x U gTr > N 3. SIBA LV-fuse-links of duty gTr are with a specific curve adapted to the load charcterisitc of the trans- former. Therefore better utilization of the overload capacity of transformers is achieved. SIBA transfor-...

European NH Knife-Blade Fuse System Selection Guide >

European NH Knife-Blade Fuse System Selection Guide > - General Application > SizeRated VoltageMetalIndicatorPart No.SelectorTechn. Gripping-LugsTypeGuideData[V][Page][Page] 31 500livetop indicator20 246 02NH 26NH 44 www.siba.de NH 5 >

TypeRated VoltagePart No.Techn.Data[V][Page] GL-Switch25028 002 02NH 54 >

GeneralApplikation European NH Knife-Blade Fuse System SizeStandard Rated Voltage AC 500 V / DC 220 V Rated Voltage AC 690 V / DC 220 V > RatedPart No.WeightPackCurrent[A][kg/1] RatedPart No.WeightPackCurrent[A][kg/1] 6320 209 13.630.15438020 209 13.800.154310020 209 13.1000.154312520 209 13.1250.1543 12520 001 13.1250.1541016020 001 13.1600.15410 Dimensions see Page NH 12 + NH 13 NH 8 www.siba.de >

GeneralApplikation European NH Knife-Blade Fuse System SizeStandard

GeneralApplikation European NH Knife-Blade Fuse System SizeStandard RatedPart No.WeightPackCurrent[A][kg/1]

GeneralApplikation European NH Knife-Blade Fuse System SizeStandard

GeneralApplikation European NH Knife-Blade Fuse System SizeStandard

GeneralApplikation European NH Knife-Blade Fuse System SizeRated VoltageStandard

Motor Circuit Protection

Motor Circuit Protection

Motor Circuit Protection

Motor Circuit Protection >

Motor Circuit Protection >

Transformer Protection

t(s) I(A) > Virtual Pre-arcing Time RMS Prospective Current > Ic(kA) > Cut-off Current Peak Prospective Short Circuit Current (Sym. r.m.s.) I(kA) >

t(s) I(A) > Virtual Pre-arcing Time RMS Prospective Current > Ic(kA) > Cut-off Current Peak Prospective Short Circuit Current I(kA) >

t(s) I(A) > Virtual Pre-arcing Time RMS Prospective Current > Ic(kA) > Cut-off Current Peak Prospective Short Circuit Current I(kA) >

t(s) I(A) > Virtual Pre-arcing Time RMS Prospective Current > Ic(kA) > Cut-off Current Peak Prospective Short Circuit Current I(kA) >

RatedPart No.Pre-arcingTotal Currentl > 2 t-valuel > 2 t-value @ 760 V[A][ A > 2 s ][ A > 2 s ] 12520 389 08.12530 000120 000 16020 389 08.16053 000212 000 > t(s) I(A) Ic(kA) Cut-off Current Peak Virtual Pre-arcing Time Prospective Short Circuit Current I(kA) RMS Prospective Current

t(s) I(A) > Virtual Pre-arcing Time RMS Prospective Current > Ic(kA) > Cut-off Current Peak Prospective Short Circuit Current I(kA) >

t(s) I(A) Ic(kA) Cut-off Current Peak Virtual Pre-arcing Time Prospective Short Circuit Current I(kA) RMS Prospective Current

Part No. Breaking CapacityBreaking CapacityTerminalNon Inductive LoadInductive Load (L/R = 10 ms)IEC 760[A][A] 28 002 0233AMP 2,8 x 0,5 (Red hammer) >