Installation
7.7 SITOP battery module connections
SITOP UPS1600 / BAT1600 / UPS1100
222 Equipment Manual, 07.2021, A5E37775406-11-76
7.7 SITOP battery module connections
7.7.1 Connections SITOP BAT1600
Figure 7-6 Power terminals (1) communication terminals (2)
Use the following minimum cross-sections for the connecting cables/conductors (terminals
"+" and "-") between the UPS module and battery module(s):
• for a 10 A / 20 A system, a minimum cross-section of 2.5 mm
2
.
• for a 40 A system, a minimum cross-section of 4 mm
2
.
• when connecting the SITOP BAT1600 38 Ah battery module, the minimum cross-section is
6 mm
2
.
Longer cable lengths or smaller cross-sections can result in nuisance alarms when buffering!
When several battery modules are used, note the following:
When connecting several battery modules in parallel (max. 6) the following applies:
1. Ensure that the battery modules are the same type and have the same charge state.
2. Battery modules are wired to the UPS in a star configuration with the same cable lengths
(ensure that the impedance is the same for all cables).
3. Dimension the cross-section of the star configuration wiring for the total current (if required,
reduce all fuse values).
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