C-5  Compliance    
AC30V series Variable Speed Drive 
CONDUCTED EMISSION 
 
The various standards have common roots (CISPR 11 & CISPR14) so there is some commonality in the test levels applied in different standards 
and environments.  
 
Relationship Between Standards 
Product Specific  Generic 
Frequency (MHz) 
dB(
V) 
Category C1 
 
Equivalent  Not applicable 
0.15 - 0.5 
 
 
 
0.5 - 5.0 
5.0 - 30.0 
66 
decreasing with log 
of frequency to: 
56 
56 
60 
56 
decreasing with log 
of frequency to: 
46 
46 
50 
Category C2 
 
Not applicable  Equivalent 
0.15 - 0.5 
0.5 - 5.0 
5.0 - 30.0 
79 
73 
73 
66 
60 
60 
Category C3 
 
These limits have no relationships with the 
generic standards. 
I ≤100A 
0.15 - 0.5 
0.5 - 5.0 
5.0 - 30.0 
 
 
 
100 
86 
90 
decreasing with log 
of frequency to: 
70 
90 
76 
80 
decreasing with log 
of frequency to: 
60 
I ≥100A 
0.15 - 0.5 
0.5 - 5.0 
5.0 - 30.0 
130 
125 
115 
120 
115 
105