Siemens Simatic S7-400

3.10 Power supply module PS 407 20A (6ES7407-0RA01-0AA0)
Function
The power module PS 407 20A is designed for connection to an 85-264 V AC network or an
88-300 V DC network, and supply 5 V/20 A DC and 24 V/1 A DC at the secondary side.
PS 407 20A operator control and monitoring elements
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Figure 3-6 PS 407 20 A operator control and monitoring elements
Mains connection
An AC power plug is used with PS 407 20A both for connection to an AC network and for
connection to a DC network.
Reverse polarity of L+ and L-
Reverse polarity of L+ and L with a supply voltage of 88 V DC to 300 V DC does not affect the
function of the power supply. The connection must comply with the instructions in the
installation manual.
Power supply modules
3.10 Power supply module PS 407 20A (6ES7407-0RA01-0AA0)
S7-400 Automation System Module Data
66 Reference Manual, Ausgabe 11/2016, A5E00850736-08