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8.3.2
Technical specifications DC power supply (DC)
Degree of protection
Protection class
Power supply characteris-
tics
Input data
Voltage
Continuous current
Starting current (load-inde-
pendent)
•
Active power
Output data
Voltages
Secondary power output
8.4
Electromagnetic compatibility
See the note in "Applicability of technical specifications (Page 74)".
Interference emission
Immunity to interference
Interference immunity on the sup-
ply cables
Noise immunity on signal lines
Immunity to electrostatic dis-
charge
Immunity to RF interference
Immunity to magnetic fields
SIMATIC IPC BX-39A
Operating Instructions, 07/2022, A5E50715883-AA
I²t value:
IP20 (in installed state)
VDE 0106
Nominal 24 V DC (-20% / +20%), SELV, isolated
Max. 75 A for 0.2 ms
Max. 9 A for further 5 ms
Max. 8 A for further 40 ms
EN 61000-6-3, EN 61000-6-4, CAN/CSA CISPR32 class B; KS C
9832; FCC class A
EN 61000-6-1; EN 61000-6-2; KS C 9835
± 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
± 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
± 6 kV contact discharge in accordance with IEC 61000-4-2
± 8 kV air discharge in accordance with IEC 61000-4-2
•
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
100 A/m; 50 Hz; 60 Hz (according to IEC 61000-4-8)
Technical specifications
8.4 Electromagnetic compatibility
DC power supply
Max. 5 A
Max. 4.1 A²s
94 W
+12 V / 6.7 A
Max. 80 W
77
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