GE Industrial Solutions LP33 Series 80 & 100 Installation Guide - Manual (Page 29)

Modifications reserved Page 29/47
OPM_LPS_3UI_80K_M10_1US_V010.doc Installation Guide LP33 Series 80 & 100 UL S1
3.9 ELECTRICAL CONNECTIONS
WARNING !
The connections to and from the UPS must be executed by QUALIFIED PERSONNEL
ONLY. Refer to the “Safety Rules - Installation” described on page 6.
3.9.1 Common input utility
Fig. 3.9.1-1 Common Input Utility
Common Input Utility
The UPS delivered in standard version
has Common Input Utility.
Only one input line (F1) supplies both
Rectifier and Bypass input terminals.
Bear in mind that when the utility
fuses are opened there is a supply
failure to the rectifier as well as to the
Automatic Bypass and Manual Bypass.
L3
L1 L2
N2
X3
Load
X1
Utility 1 X4
Battery
GND
GND
LP
S
33U_0
80-
100
_Con
ne
ct
io
n co
mm
on
_0
1U
S
L3
L1 L2
N1
- 0 +
Fig. 3.9.1-2 Terminals for Common Input Utility
X1 Utility 1 - Input Utility connection
L1 = Rectifier + Bypass Phase A
L2 = Rectifier + Bypass Phase B
L3 = Rectifier + Bypass Phase C
N1 = Utility
Neutral GND = Main Ground
X3 Load - Output Load connection
L1 = Load Phase L1
L2 = Load Phase L2
L3 = Load Phase L3
N2 = Load Neutral GND = Load Ground
Max. rating X1, X3 and X4 terminals: 2 x AWG 4/0 - Use 167°F (75°C) copper wire
Connect wire to the Terminals using appropriate tools and appropriate torque.
Torque specification for Input / Output and DC power connections on Terminals: Section 3.8.1.
NOTE !
For UPS correct operation, the input utility phase rotation must be clock-wise.
Inside the UPS, all neutrals N1 and N2 are connected together.
This UPS is designed to operate in a wye-configured electrical system with a solidly
grounded neutral.