Siemens SIMATIC S7-1200 - Page 1387

Technical specifications
A.5 CPU 1212C
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
1387
Table A- 33 Power supply
Technical data
CPU 1212C
AC/DC/Relay
CPU 1212C
DC/DC/Relay
CPU 1212C
DC/DC/DC
Voltage range
85 to 264 V AC
20.4 V DC to 28.8 V DC
Line frequency 47 to 63 Hz --
Input current
(max. load)
CPU only 80 mA at 120 V AC
40 mA at 240 V AC
400 mA at 24 V DC
CPU with all expansion
accessories
240 mA at 120 V AC
120 mA at 240 V AC
1200 mA at 24 V DC
Inrush current (max.)
20 A at 264 V AC
12 A at 28.8 V DC
Isolation (input power to logic)
1500 V AC
Not isolated
Ground leakage, AC line to functional earth
0.5 mA max.
--
Hold up time (loss of power) 20 ms at 120 V AC
80 ms at 240 V AC
10 ms at 24 V DC
Internal fuse, not user replaceable
3 A, 250 V, slow blow
Table A- 34 Sensor power
Technical data
CPU 1212C
AC/DC/Relay
CPU 1212C
DC/DC/Relay
CPU 1212C
DC/DC/DC
Voltage range 20.4 to 28.8 V DC L+ minus 4 V
DC min.
Output current rating (max.)
300 mA (short-circuit protected)
Maximum ripple noise (<10 MHz)
< 1 V peak to peak
Same as input line
Isolation (CPU logic to sensor power)
Not isolated