Power Supply Modules
3-22 S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Polarity Reversal of L+ and L-

The polarity reversal of L+ and L- with supply voltages of between 88 VDC

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,

Chapter 6.

Technical Specifications of the PS 407 4 A
Dimensions, Weight, and Cable Cross-Sections
Dimensions WxHxD (mm)
Weight
25x290x217
0.76 kg
g
Cable cross-section
g
3x1.5 mm 2 (litz wire
with wire end ferrule
with insulating collar;
w
ith i
nsu
l
a
ti
ng
co
ll
ar;
use only flexible
sheath cable)
Cable diameter 3 to 9 mm
Input Rating
Input voltage
•Rated value
•Permitted range
110/230 VDC
120/230 VAC
88 to 300 VDC,
85 to 264 VAC
(long-range input)
System frequency
•Rated value
•Permitted range
50 / 60 Hz
47 to 63 Hz
Rated input current
•At 120 VAC
•At 120 VDC
•At 240 VAC
•At 240 VDC
0.38 A
0.37 A
0.22 A
0.19 A
Leakage current < 3.5 mA
Overvoltage resistance In accordance with DIN
VDE 0160, curve W2
Output Rating
Output voltages
•Rated values 5.1 VDC /24 VDC
Output currents
•Rated values 5 VDC: 4 A
24 VDC: 0.5 A
Max. residual ripple 5 VDC: 50 mVSS
24 VDC: 200 mVSS
Max. switching peaks 5 VDC: 150 mVS
24 VDC: 500 mVS
Idle conditions 5 VDC: 100 mA Base
load required
24 VDC: Idling-proof
(no base load required)
Other Parameters
Protection class in accordance
with IEC 60536 I, with protective
grounding conductor
Overvoltage category II
Pollution severity 2
Rated voltage Ue
0 < Ue ≤ 50 V
150 V < Ue ≤ 300 V
Test Voltage
700 VDC
(secondary <–> PE)
2200 VDC
(primary <–> PE)
Buffering of power failures: >20 ms
Complies with the
NAMUR
recommendation NE
21 of August 1998 at a
repeat rate of 1 s
Power consumption 240 VDC 52 W
Power loss 20 W
Backup current Max. 100 µA at power
off
Backup battery (option) 1 x Lithium AA, 3.6 V /
1.9 Ah
Protective separation
to IEC 61131-2 Yes