Technical data and limit values for power capacitors

Standards IEC 60831-1+2, EN 60831-1+2
OvervoltageUmaxUn + 10% (up to 8 h each day) / Un + 15% (up to 30 min each day)
 Un + 20% (up to 5 min each day) / Un + 30% (up to 1 min each day)
Excess currentImax Up to 1.3 · In (up to 1,5 x In combined effects from harmonics)
 (overvoltage and capacity tolerance)
Inrush currentIS Up to 300 x In
Losses Approx. 0.2 Watt per kvar
Nominal frequencyf 50 / 60 Hz
Capacity tolerance – 5% / +10%
Test voltage(terminal/terminal)VTT 2.15 · Vn1, AC, 10 s
Test voltage(terminal/casing)VTC Up to Un≤ 660 V: 3 000 VAC, 10 s; over Un = 660 V: 6 000 VAC, 10 s
Average life expectancyt LD(Co) Up to 150 000 h
Environmental temperature –25/D; max. temp. 55 °C; max. 24 hour average = 45 °C;
 max. 1 year average = 35 °C; lowest temperature = –40 °C
Cooling Natural or forced air cooling
Air humidityHrel max. 95%
Operation height max. 4000 m above sea level
Fixing and earth M12  thread bolts on the housing bottom
Safety Dry technology, over pressure tear-off fuse, selfhealing, maximum permitted
 fault current 10000A in accordance with UL810 standard
Discharge Discharge resistance
Housing Aluminium can and steel housing
Protection class IP20, indoor (optional with terminal cover, IP54)
Dielectric Polypropylene film
Coating Dry
Number of switching cycles per year Maximum 500 switch cycles in accordance with IEC6083