SIEMENS
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Siemens KT 10.1 · 2016
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Special designs, special uses
DC/DC converters
200-900 V DC / 24 V DC/20 A
■
Application
The SITOP PSU400M power supply with a 600 V DC input is
suitable as an efficient DC/DC converter for drive and battery
systems; large input range and temperature range, high
efficiency; slim design; with 50% extra power for 5 s/min.
■
Technical specifications
Article number
6EP1536-3AA00
Product
SITOP PSU400M
Power supply, type
24 V/20 A
Input
Input
DC voltage
Supply voltage
• at DC
600 ... 600 V
• Note
startup from 340 V DC; derating
necessary at 300 ... 400 V DC and
824 ... 900 V DC
Input voltage
• at DC
300 ... 900 V
Overvoltage resistance
Shutdown at
V
in
> 900 V DC
Input current
• at DC at rated input voltage 600 V
0.85 A
Switch-on current limiting (+25 °C),
max.
8 A
I²t, max.
0.02 A²·s
Built-in incoming fuse
yes, cut-off capacity 20 kA;
L/R < 2 ms ("+" and "-" input)
Output
Output
Controlled, isolated DC voltage
Rated voltage
V
out
DC
24 V
Total tolerance, static ±
3 %
Static mains compensation, approx.
0.3 %
Static load balancing, approx.
0.3 %
Residual ripple peak-peak, max.
150 mV
Residual ripple peak-peak, typ.
30 mV
Spikes peak-peak, max.
(bandwidth: 20 MHz)
200 mV
Spikes peak-peak, typ.
(bandwidth: 20 MHz)
100 mV
Adjustment range
24 ... 28.8 V
Product function Output voltage
adjustable
Yes
Output voltage setting
via potentiometer; max. 480 W
Status display
Green LED for 24 V OK,
green flashing LED for start delay
Signaling
Relay contact (NO contact, rating
60 V DC/ 0.3 A; 30 V DC/1 A) for
24 V OK
On/off behavior
No overshoot of
V
out
(soft start)
Startup delay, max.
0.1 s; 10 s adjustable using switch
Voltage increase time of the output
voltage maximum
150 ms
Rated current value
I
out rated
20 A
Current range
0 ... 20 A
• Note
+60 ... +70 °C: Derating 5.5%/K
Supplied active power typical
480 W
Short-term overload current
• on short-circuiting during the
start-up typical
40 A
• at short-circuit during operation
typical
60 A
Duration of overloading capability for
excess current
• on short-circuiting during the
start-up
150 ms
• at short-circuit during operation
25 ms
Constant overload current
• on short-circuiting during the start-
up typical
23 A
Parallel switching for enhanced
performance
Yes; switchable characteristic
Numbers of parallel switchable units
for enhanced performance
2
Efficiency
Efficiency at
V
out rated
, I
out rated
,
approx.
95 %
Power loss at
V
out rated
, I
out rated
,
approx.
25 W
Closed-loop control
Dynamic mains compensation
(
V
in rated
±15 %), max.
1.5 %
Dynamic load smoothing
(
I
out
: 50/100/50 %),
U
out
± typ.
1.5 %
Load step setting time 50 to
100%, typ.
1 ms
Load step setting time 100 to
50%, typ.
1 ms
Setting time maximum
5 ms
Protection and monitoring
Output overvoltage protection
< 33 V
Current limitation, typ.
22 A
Property of the output Short-circuit
proof
Yes
Short-circuit protection
Alternatively, constant current
characteristic approx. 22 A or
latching shutdown
Enduring short circuit current RMS
value
• typical
22 A
Overcurrent overload capability in
normal operation
overload capability 150 %
I
out rated
up to 5 s/min
Overload/short-circuit indicator
LED yellow for "overload", LED red
for "latching shutdown", red LED
flashing for "Overtemperature"
Article number
6EP1536-3AA00
Product
SITOP PSU400M
Power supply, type
24 V/20 A
© Siemens AG 2016