990-1007A, Revision 2 9/99 8
Optional Equipment Installation
Galvanic Isolation Transformer
The galvanic isolation transformer can be delivered for one- or two-phase connection. When connecting a Smart-UPS DP
and galvanic isolation transformer, the AC bus and the wires for the thermo switch must be mounted. Please follow the
instructions below.
Note:
If the cables in the galvanic isolation transformer have 4 wires, the wire marked no. 3 must be cut off.
Galvanic Isolation Transformer Connections
The AC bus from the galvanic isolation transformer must be mounted.
Note:
If the galvanic isolation module is installed it must be secured so that the neutral is grounded according to local regulations.
This is done in the galvanic isolation transformer with a wire between terminal 5 (PE) and 9 (neutral) .
This wire is already mounted from the factory. If the Smart-UPS DP has to be g rounded to a separate EDP earth, this is done
to terminal 9, after having removed the wire between terminals 5 and 9.
Standard System With Isolating Transformer (230 V)
System Mains Fuse*
(Fm)
Input Cable
Transformer
Input Cable UPS Output Cable UPS
4kV 25A 3x6 mm² 3x6 mm² 3x4 mm²
6kV 40A 3x10 mm² 3x10 mm² 3x10 mm²
8kV 50A 3x16 mm² 3x16 mm² 3x10 mm²
10kV 63A 3x16 mm² 3x16 mm² 3x16 mm²
*Din gl Types
UPS
EPOCOM
PORT
NL NL
INPUT CABLE UPS
LOAD
L
N
OUTPUT CABLE UPS
MAINS
L
N
PE
Input
Cable Tr. Iso.Tr
.
L
N
Tr. Sw. cable
L
N
Fm