SIEMENS
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Siemens KT 10.1 · 2016
9
Special designs, special uses
Battery charging
3-phase, 24 V DC
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Overview
SITOP PSU3800 3-phase power supplies (24 V DC/17 A and
30 A) are suitable for battery charging, thanks to their constant-
current characteristic. For other applications the output charac-
teristic can also be switched to latching shutdown. The three-
phase, wide-range input enables them to be used worldwide.
The slim design requires little space on the DIN rail. Installation
gaps are not required.
■
Technical specifications
Article number
6EP3436-8UB00-0AY0
6EP1437-3BA20
Product
SITOP PSU3800
SITOP PSU300B
Power supply, type
24 V/17 A
24 V/30 A
Input
Input
3-phase AC
3-phase AC
Rated voltage value
V
in rated
400 ... 500 V
400 ... 500 V
Voltage range AC
320 ... 575 V
320 ... 575 V
Wide-range input
Yes
Yes
Mains buffering at
I
out rated
, min.
15 ms; at
V
in
= 400 V
20 ms; at
V
in
= 400 V
Rated line frequency 1
50 Hz
50 Hz
Rated line frequency 2
60 Hz
60 Hz
Rated line range
47 ... 63 Hz
47 ... 63 Hz
Input current
• at rated input voltage 400 V
1.1 A
1.6 A
• at rated input voltage 500 V
0.9 A
1.3 A
Switch-on current limiting (+25 °C), max.
16 A
56 A
I²t, max.
0.8 A²·s
2.24 A²·s
Built-in incoming fuse
none
none
Protection in the mains power input (IEC 898)
Required: 3-pole connected miniature circuit breaker
6 ... 16 A characteristic C or
circuit breaker 3RV2011-1DA10 (setting 3 A) or
3RV2711-1DD10 (UL 489)
Required: 3-pole connected miniature circuit breaker
10 ... 16 A characteristic C or
circuit breaker 3RV2011-1DA10 (setting 3 A) or
3RV2711-1DD10 (UL 489)
Output
Output
Controlled, isolated DC voltage
Controlled, isolated DC voltage
Rated voltage
V
out
DC
24 V
24 V
Total tolerance, static ±
3 %
3 %
Static mains compensation, approx.
0.1 %
0.1 %
Static load balancing, approx.
0.2 %
0.1 %
Residual ripple peak-peak, max.
100 mV
100 mV
Spikes peak-peak, max. (bandwidth: 20 MHz)
200 mV
200 mV
Adjustment range
24 ... 28 V
24 ... 28.8 V
Product function Output voltage adjustable
Yes
Yes
Output voltage setting
via potentiometer; max. 480 W
via potentiometer
Status display
Green LED for 24 V OK
Green LED for 24 V OK
Signaling
Relay contact (NO contact, rating 60 V DC/ 0.3 A)
for "24 V OK"
Relay contact (NO contact, rating 60 V DC/ 0.3 A)
for "24 V OK"
© Siemens AG 2016