Technical specifications
8.4 Electromagnetic compatibility
SIMATIC IPC BX-39A
Operating Instructions, 07/2022, A5E50715883-AA
77
8.3.2
Technical specifications DC power supply (DC)
Degree of protection
IP20 (in installed state)
Protection class
VDE 0106
Power supply characteris-
tics
DC power supply
Input data
Voltage
Nominal 24 V DC (-20% / +20%), SELV, isolated
Continuous current
Max. 5 A
Starting current (load-inde-
pendent)
Max. 75 A for 0.2 ms
Max. 9 A for further 5 ms
Max. 8 A for further 40 ms
•
I²t value:
Max. 4.1 A²s
Active power
94 W
Output data
Voltages
+12 V / 6.7 A
Secondary power output
Max. 80 W
8.4
Electromagnetic compatibility
See the note in "Applicability of technical specifications (Page 74)".
Interference emission
EN 61000-6-3, EN 61000-6-4, CAN/CSA CISPR32 class B; KS C
9832; FCC class A
Immunity to interference
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,
80% AM to IEC 61000-4-6
Immunity to magnetic fields
100 A/m; 50 Hz; 60 Hz (according to IEC 61000-4-8)
