Siemens Simatic M7-400

Power Supply Modules
3-41
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Technical Specifications of the PS 405 20 A
Dimensions, Weight, and Cable Cross-Sections
Dimensions WxHxD (mm)
Weight
75x290x217
2 2 kg
W
e
i
g
h
t
Cable cross-section
2
.
2 k
g
3x1.5 mm
2
(litz wire
ith i d f l
(
with wire end ferrule;
use component
d t fl ibl
p
conductor or flexible
sheath cable)
Cable diameter 3 to 9 mm
Input Rating
Input voltage
• Rated value
• Permitted range
24/48/60 VDC
Static:
19.2 VDC to 72 VDC
Dynamic:
18.5 VDC to 75.5 VDC
Rated input current 7.3 A/3.45 A/2.75 A
Starting current inrush Peak value 56 A
half-value width 1.5 ms
Overvoltage resistance In accordance with DIN
VDE 0160, curve B2
Output Rating
Output voltages
• Rated values 5.1 VDC/24 VDC
Output currents
• Rated values 5 VDC: 20 A
24 VDC: 1.0 A
Max. residual ripple 5 VDC: 50 mV
SS
24 VDC: 200 mV
SS
Max. switching peaks 5 VDC: 150 mV
S
24 VDC: 500 mV
S
Idle conditions 5 VDC: 200 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 U
e
0 < U
e
≤ 50 V
150 V < U
e
≤ 300 V
Test Voltage
700 VDC
(secondary <–> PE)
2300 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 input 175 W
Power loss 51 W
Backup current Max. 100 µA at power
off
Backup batteries (optional) 2 x Lithium AA, 3.6 V /
1.9 Ah
Protective separation
to IEC 61131-2
Yes