SIEMENS
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Siemens KT 10.1 · 2016
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Technical specifications
(continued)
SITOP DC UPS uninterruptible power supplies
DC UPS with battery modules
SITOP DC UPS
Article number
6EP1931-2DC21
6EP1931-2EC21
6EP1931-2FC21
6EP1931-2DC31
6EP1931-2EC31
6EP1931-2FC42
6EP1931-2DC42
6EP1931-2EC42
Product brand name
SITOP DC UPS module
SITOP DC UPS module
SITOP DC UPS module
Type of current supply
DC UPS 24 V/6 A
DC UPS 24 V/15 A
DC UPS 24 V/40 A
Input
Supply voltage at DC Rated value
24 V
24 V
24 V
Voltage curve at input
DC
DC
DC
input voltage range
22 ... 29 V DC
22 ... 29 V DC
22 ... 29 V DC
Adjustable response value voltage
for buffer connection preset
22.5 V
22.5 V
22.5 V
Adjustable response value voltage
for buffer connection
22 ... 25.5 V; Adjustable in
0.5 V increments
22 ... 25.5 V; Adjustable in
0.5 V increments
22 ... 25.5 V; Adjustable in
0.5 V increments
Input current at rated input voltage
24 V Rated value
6 A;
+ approx. 0.6 A
with empty battery
15 A;
+ approx. 1 A
with empty battery
40 A;
+ approx. 2.6 A
with empty battery
Mains buffering
Type of energy storage
with batteries
with batteries
with batteries
Design of the mains power cut
bridging-connection
Dependent on connected battery
and load current, see selection table
battery module and mains buffering
times as well as the relevant important
information notes!
Dependent on connected battery
and load current, see selection table
battery module and mains buffering
times as well as the relevant important
information notes!
Dependent on connected battery
and load current, see selection table
battery module and mains buffering
times as well as the relevant important
information notes!
Charging current
• 1
0.2 A
0.35 A
1 A
• 2
0.4 A
0.7 A
2 A
adjustable charging current maximum
Note
factory setting approx. 0.4 A
factory setting approx. 0.7 A
factory setting approx. 2 A
Output
Output voltage
• in normal operation at DC Rated
value
24 V
24 V
24 V
• in buffering mode at DC Rated value
24 V
24 V
24 V
Formula for output voltage
V
in
- approx. 0.5 V
V
in
- approx. 0.5 V
V
in
- approx. 0.5 V
ON-delay time typical
1 s
1 s
1 s
Voltage increase time of the output
voltage typical
60 ms
60 ms
360 ms
Output voltage in buffering mode
at DC
19 ... 28.5 V
19 ... 28.5 V
19 ... 28.5 V
Output current
• Rated value
6 A
15 A
40 A
• in normal operation
0 ... 6 A
0 ... 15 A
0 ... 40 A
• in buffering mode
0 ... 6 A
0 ... 15 A
0 ... 40 A
Peak current
6.3 A
15.7 A
42 A
Property of the output Short-circuit
proof
Yes
Yes
Supplied active power typical
144 W
360 W
960 W
Efficiency
Efficiency in percent
• at rated output current at rated
output current typical
95 %
96.2 %
97.2 %
• in case of accumulator operation
typical
94.5 %
96 %
96.9 %
Power loss [W]
• at rated output current at rated
output current typical
7 W
14 W
28.6 W
• in case of accumulator operation
typical
8 W
15 W
33.6 W
Protection and monitoring
Product function
• reverse polarity protection against
energy storage unit polarity reversal
Yes
Yes
Yes
• reverse polarity protection against
input voltage polarity reversal
Yes
Yes
Yes
© Siemens AG 2016