AC Film Capacitors
Motor Run
B 32 328
Technical data (cont`d)
Test data
AC test voltage terminal to terminal UTT
Insulation voltage terminals to case
Insulation resistance Ris or time constant τ at 20 °C
Rel. Humidity ≤ 65 °C (minimum value)
Dissipation factor tanδ at 20 °C
Maximum rate of voltage rise du/dtmax
Climatic data
2 x UN , 60 s
2000 Vac
3000 s
≤ 1,0 x 10-3 (120 Hz)
10 V/µs
Climatic category
25/085/21
in accordance with IEC 60068-1
Lower category Tmin (2)
Upper category Tmax (2)
Damp heat test ttest
-25 °C
+85 °C
21 days
≤ 3 %
Permitted capacitance ∆C/C
Note :
1) It should be noted that presence of harmonics produces over voltage & over current on capacitors. Resonance may
cause serious damage to installation if a siginificant level of total harmonic distortion level exists for voltage or current.
In such cases, series reactors must be considered.
2) Operating temperature class: In accordance with the reference standards, these temperatures are those measured on
the surface on the capacitor
Issue No.1
10/00
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