Electrical Connection; Power Connection With Common Input Mains - GE LP 33 Series Operating Manual

4.8

ELECTRICAL CONNECTION

WARNING !
The connections to and from the UPS must be executed by QUALIFIED PERSONNEL
ONLY.
Refer to the "Safety prescriptions - Installation" described on Section 1.
4.8.1

Power connection with common input mains

Fig. 4.8.1-1 Common input mains
Access to the AC terminals
1 - Open the front door "A" of the cabinet.
2 - Remove the front panel "B" loosening the
screw "F".
3 - Remove the front panel protection cover
"C" by pulling it off.
4 - Remove the left side panels "D and E"
loosening the screws "G".
5 - Cut an opening into rubber "H" to allow
cable passage.
NOTE !
For UPS correct operation, the
input mains phase rotation
must be clock-wise.
Fig. 4.8.1-3 Common input mains connection
Modifications reserved
OPM_LPS_33E_10K_30K_4GB_V030.doc
Common input mains
The UPS delivered in standard version has
common input mains.
Only one input line (F1) supplies both rectifier and
bypass input terminals.
Bear in mind that when the mains fuses are
opened there is a supply failure to the rectifier as
well as to the automatic bypass and manual
bypass.
D
E
Fig. 4.8.1-2 Power IN / OUT connections
Input mains connection
L1 = Phase L1 rectifier + bypass
L2 = Phase L2 rectifier + bypass
L3 = Phase L3 rectifier + bypass
N1 = Neutral mains
Output load connection
L1 = Phase L1 load
L2 = Phase L2 load
A
L3 = Phase L3 load
N2 = Neutral load
G
H
PE = Earth mains
PE = Earth load
NOTE !
Input/output terminals must be
tightened with
screwdriver applying
force 1,2 / 1,4 Nm.
Clamp the input/output cables
with the included cable-ties "A".
Operating Manual LP 33 Series / 10-20-30 kVA
B
F
A
C
a proper
torsion
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