Technical specifications 
  8.4 Electromagnetic compatibility 
SIMATIC IPC PX-39A PRO 
Operating Instructions, 11/2022, A5E51699950-AA  
91 
8.4  Electromagnetic compatibility 
See the note in "Applicability of technical specifications (Page 88)". 
 
EN 61000-6-4, CAN/CSA CISPR22 class A; KS C 9832, FCC class A 
EN 61000-6-1; EN 61000-6-2; KS C 9835 
Interference immunity on the sup-
ply cables 
± 2 kV according to IEC 61000-4-4; burst 
± 1 kV according to IEC 61000-4-5; symmetrical surge 
± 2 kV according to IEC 61000-4-5; asymmetrical surge 
Noise immunity on signal lines 
± 1 kV acc. to IEC 61000-4-4; Burst; Length < 30 m 
± 2 kV acc. to IEC 61000-4-4; Burst; Length > 30 m  
± 2 kV acc. to IEC 61000-4-5; Surge; Length > 30 m  
Immunity to electrostatic dis-
charge 
± 6 kV contact discharge in accordance with IEC 61000-4-2 
± 8 kV air discharge in accordance with IEC 61000-4-2 
Immunity to RF interference 
•  10 V/m 80 MHz – 2.7 GHz,  
80% AM to IEC 61000-4-3 
•  3 V/m 2.7 – 6 GHz,  
80% AM to IEC 61000-4-3 
•  10 V 10 KHz – 80 MHz,  
Immunity to magnetic fields 
100 A/m; 50 Hz; 60 Hz (according to IEC 61000-4-8) 
8.5  Ambient conditions 
See the note in "Applicability of technical specifications (Page 88)". 
 
Climatic ambient conditions (standard operating position / inclined mounting) 
Maximum permitted ambient temperature during operation 
Temperature, tested according to IEC 60068-2-1, IEC 60068-2-2 
1
High Temperature /  
Stable performance 
2
3
2
3
2
3
Relative humidity 
Tested according to IEC 60068-2-78, IEC 60068-2-30 
0 to 31 °C: 5 to 80%; decreasing linearly to 5 to 25% at 45 °C 
5 to 95% at 25/55 °C, no condensation