MEDIUM VOLTAGE FUSES FOR CAPACITORS NORTH AMERICAN STYLE
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1 SIBA Products are available from: MARYLAND METRICS phones: (410) (800) faxes: (410) (800) URL: P.O.Box 261 Owings Mills, MD USA copyright 2003 maryland metrics/siba fuse HHC MEDIUM VOLTAGE FOR CAPACITORS SIBA Capacitor protection fuses can easily be fitted direct onto capacitor bushings, because they are fitted with threaded holes at both ends. Their electrical characteristic suits the protection requirements of capacitors. The capacitor fuses are available in the following ratings: Voltage ratings: Amp. ratings: 4.8 / 7.2 / 15.5 kv A Features/Benefits Standards: IEC IEC High interrupting rating 63 ka Characteristic following capacitor protection needs for back up protection Suitable for direct fitting onto capacitor bushing Cartridge type current limiting Special mounting brackets available on request Note: When placing orders for; or inquiring about SIBA fuses: please place the code 'R367-' in front of the SIBA art. no. (example: R ) HHC 1
2 HHC Selection Guide Thread Rated Voltage Diameter Class Part No. Selector Techn. AC mm Guide Data kv Page Page 1/2 UNC Back up HHC 3 HHC 9 1/2 UNC Back up HHC 3 HHC 9 1/2 UNC Back up HHC 3 HHC 9 1/2 UNC Back up HHC 4 HHC 9 1/2 UNC Back up HHC 4 HHC 9 1/2 UNC Back up HHC 5 HHC 10 M Back up HHC 6 HHC 10 M Back up HHC 6 HHC 10 M Back up HHC 6 HHC 10 M Back up HHC 7 HHC 11 M Back up HHC 7 HHC 11 M Back up HHC 8 HHC 11 HHC 2
3 HHC MEDIUM VOLTAGE FOR CAPACITORS Rated voltage Class thread Standard AC 4.8 kv Back up 1/2 UNC IEC IEC Rated Part No. D= Diameter Rated breaking Weight Pack current inch mm capacity (kg/1) ka 6.3 A A A A A A A A A A A A A A A / E (254 mm) L (273 mm) E (359 mm) L (378 mm) HHC 3
4 HHC MEDIUM VOLTAGE FOR CAPACITORS Rated voltage Class thread Standard AC 7.2 kv Back up 1/2 UNC IEC IEC Rated Part No. D= Diameter Rated breaking Weight Pack current inch mm capacity (kg/1) ka 6.3 A A A A A A A A A A A A A A E (254 mm) L (273 mm) E (359 mm) L (378 mm) HHC 4
5 HHC MEDIUM VOLTAGE FOR CAPACITORS Rated voltage Class thread Standard AC 15.5 kv Back up 1/2 UNC IEC IEC Rated Part No. D= Diameter Rated breaking Weight Pack current inch mm capacity (kg/1) ka 6.3 A A A A A A A A A A A E (359 mm) L (378 mm) HHC 5
6 HHC MEDIUM VOLTAGE FOR CAPACITORS Rated voltage Class thread Standard AC 4.8 kv Back up M16 IEC IEC Rated Part No. D= Diameter Rated breaking Weight Pack current inch mm capacity (kg/1) ka 6.3 A A A A A A A A A A A A A A A / E (254 mm) L (273 mm) E (359 mm) L (378 mm) HHC 6
7 HHC MEDIUM VOLTAGE FOR CAPACITORS Rated voltage Class thread Standard AC 7.2 kv Back up M16 IEC IEC Rated Part No. D= Diameter Rated breaking Weight Pack current inch mm capacity (kg/1) ka 6.3 A A A A A A A A A A A A A A E (254 mm) L (273 mm) L (359 mm) L (378 mm) HHC 7
8 HHC MEDIUM VOLTAGE FOR CAPACITORS Rated voltage Class thread Standard AC 15.5 kv Back up M16 IEC IEC Rated Part No. D= Diameter Rated breaking Weight Pack current inch mm capacity (kg/1) ka 6.3 A A A A A A A A A A A E (359 mm) L (378 mm) HHC 8
9 Electrical Characteristics HHC Rated voltage Class thread AC 4.8 kv Back up 1/2 UNC Rated Part No. Breaking Pre-arcing Total Power current current I 2 t-value I 2 t-value loss ka A 2 s A 2 s W 6.3 A A A , A , A , A , A , A , A ,700 59, A , , A , , A , , A , , A , , A , , Rated voltage Class thread AC 7.2 kv Back up 1/2 UNC Rated Part No. Breaking Pre-arcing Total Power current current I 2 t-value I 2 t-value loss ka A 2 s A 2 s W 6.3 A A A , A , A , A , A , A , A ,700 59, A , , A , , A , , A , , A , , TIME CURRENT CHARACTERISTICS AND CUT OFF CURRENT DIAGRAM PLEASE REFER TO PAGE HHC 12 HHC 9
10 HHC Electrical Characteristics Rated voltage Class thread AC 15.5 kv Back up 1/2 UNC Rated Part No. Breaking Pre-arcing Total Power current current I 2 t-value I 2 t-value loss ka A 2 s A 2 s W 6.3 A A A , A , A , A , A , A , A ,700 59, A , , A , , Rated voltage Class thread AC 4.8 kv Back up M16 Rated Part No. Breaking Pre-arcing Total Power current current I 2 t-value I 2 t-value loss ka A 2 s A 2 s W 6.3 A A A , A , A , A , A , A , A ,700 59, A , , A , , A , , A , , A , , A , , TIME CURRENT CHARACTERISTICS AND CUT OFF CURRENT DIAGRAM PLEASE REFER TO PAGE HHC 12 HHC 10
11 Electrical Characteristics HHC Rated voltage Class thread AC 7.2 kv Back up M16 Rated Part No. Breaking Pre-arcing Total Power current current I 2 t-value I 2 t-value loss ka A 2 s A 2 s W 6.3 A A A , A , A , A , A , A , A ,700 59, A , , A , , A , , A , , A , , Rated voltage Class thread AC 15.5 kv Back up M16 Rated Part No. Breaking Pre-arcing Total Power current current I 2 t-value I 2 t-value loss ka A 2 s A 2 s W 6.3 A A A , A , A , A , A , A , A ,700 59, A , , A , , TIME CURRENT CHARACTERISTICS AND CUT OFF CURRENT DIAGRAM PLEASE REFER TO PAGE HHC 12 HHC 11
12 HHC Electrical Characteristics Time Current Characteristics Back up t(s) Cut-off Current Peak Virtual Pre-arcing Time RMS Prospective Current I(A) Cut Off Current Diagram Back up Ic (ka) Prospective Short Circuit Current I(kA) HHC 12
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