SERIES
TS33-ON
www.ips-ups.eu
28.05.2018
TS33-ON-manual_EN-R0
10
3.3 Parallel System installation
Parallel function is optional. Parallel kits include parallel card and parallel cables. The maximum parallel number is
6 units. Parallel UPS units must separately equip the battery group
。
3.3.1 Parallel installation requirements
The parallel cables must be run by the electrician.
The input / output wiring of each UPS is same as single UPS’s wiring.
Each UPS mains and bypass input cables connected to mains and bypass input patchboard.
Each UPS output cable is connected to the output patchboard, and connected wiring to the load from the output
patchboard.
Each UPS requires separate battery group.
Refer to the parallel wiring diagram. The switch size in the diagram is referred to the maximum current of terminal block to
match.
The output cable length requires: the cable length from each single UPS output to parallel UPS units output is almost same
and more than 2 m at least. When the distance between the load and each parallel UPS is less than 20 m, each cable
length difference less than 20% is required. When the distance between the load and each parallel UPS is more than 20 m,
each cable length difference less than 10% is required.
3.3.2 Parallel installation procedure
Install the parallel cables
:
when two UPS are paralleled, in order to ensure the reliability for parallel UPS units, there is
only one way to connect the parallel cables, it is to make the parallel cable connected in loop line, follow the method of
below drawing to connect the female port and male port, that is connecting two UPS with two parallel cables by parallel
cards. For three or more parallel UPS units, the quantity of parallel cables needed equals to the UPS quantities. It just
needs to connect each UPS in sequence with the parallel cables by parallel cards.
Parallel cable connection for two UPS
Parallel cable connection for three or more UPS