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Power supply modules

3.10 Power supply module PS 407 20A (6ES7407-0RA01-0AA0)

S7-400 Automation System Module Data

Reference Manual, Edition 09/2009, A5E00850736-06

3.10 Power supply module PS 407 20A (6ES7407-0RA01-0AA0)

Function

The PS 407 20A power supply module is designed for connecting to either an AC line

voltage of 85 to 264 VAC or a DC line voltage of 88 to 300 VDC and supplies 5 VDC/20 A

and 24 VDC/1 A on the secondary side.

Operator controls and indicators on the PS 407 20A

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Figure 3-6 Operator controls and indicators on the PS 407 20 A

Power connection

An AC power connector is used for connecting the PS 407 20A to both an AC and DC

supply.

Polarity reversal of L+ and L-

Reverse polarity of L+ and L- with supply voltages of between 88 and 300 VDC has no effect

on the function of the power supply. The connection should be made as described in the

instructions in the Installation Manual.

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