Siemens SIMATIC S7-1200 System Manual page 1375

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Power supply

Technical data

Voltage range

Line frequency

Input current

CPU only at max. load

CPU with all expansion

accessories at max. load

Inrush current (max.)

Isolation (input power to logic)

Ground leakage, AC line to functional

Hold up time (loss of power)

Internal fuse, not user replaceable

Sensor power

Technical data

Voltage range

Output current rating (max.)

Maximum ripple noise (<10 MHz)

Isolation (CPU logic to sensor power)

S7-1200 Programmable controller

System Manual, V4.2, 09/2016, A5E02486680-AK

85 to 264 V AC

60 mA at 120 V AC

30 mA at 240 V AC

180 mA at 120 V AC

90 mA at 240 V AC

20 A at 264 V AC

20 ms at 120 V AC

80 ms at 240 V AC

3 A, 250 V, slow blow

20.4 to 28.8 V DC

300 mA (short-circuit protected)

< 1 V peak to peak

Not isolated

Technical specifications

20.4 V DC to 28.8 V DC

300 mA at 24 V DC

900 mA at 24 V DC

12 A at 28.8 V DC

Not isolated

10 ms at 24 V DC

L+ minus 4 V DC min.

Same as input line

A.4 CPU 1211C

300 mA at 24 V DC

Siemens SIMATIC S7-1200 System Manual page 1375

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