Installation Drawings
31

Figure 18 Electrical field connections drawing: 800 – 1000 amp Liebert STS2 with single output breaker

SECTION A-A
SIDE VIEW
(WITH FRONT PANELS REMOVED)
FRONT VIEW
FRONT VIEW
GROUND BUS
.51 DIA.
NEUTRAL BUS
RIGHT SIDE VIEW
.51 DIA. INPUT/OUTPUT BUS
RIGHT SIDE VIEW
NEUTRAL
BUS
GROUND
BUS
Ø A, Ø B, Ø C
SYSTEM OUTPUT
Ø A, Ø B, Ø C
SOURCE 1 INPUT
CB5
CB3
CB2
CB1
CB4
SOURCE 1
INPUT Ø A
SOURCE 2 INPUT
Ø A, Ø B, Ø C
SOURCE 1
INPUT Ø B
SOURCE 1
INPUT Ø C
PEM NUT
FRONT
BUS
NEUTRAL
CB3
SYSTEM OUTPUT
ONE-LINE DIAGRAM

PS212800

Rev. 2

CB4
K3K2
K1
CB5
K3K1
K2
SOURCE 1
CB1
SOURCE 2
CB2
NOT RECOMMENDED.
NOTES:
1. ALL DIMENSIONS ARE IN INCHES AND (MILLIMETERS).
5. ALL WIRING IS TO BE IN ACCORDANCE WITH NATIONAL
4. ALUMINUM AND COPPER CLAD ALUMINUM CABLES ARE
3. CONTROL WIRING AND POWER WIRING MUST BE RUN
2. TOP AND BOTTOM CABLE ENTRY AVAILABLE THROUGH
AND LOCAL ELECTRICAL CODES.
RUN IN A SEPARATE CONDUIT FROM INPUT CABLES.
IN SEPARATE CONDUIT. OUTPUT CABLES SHOULD BE
CONDUIT SIZE, AND REPLACE.
REMOVABLE ACCESS PLATES. REMOVE, PUNCH TO SUIT
NEUTRAL, AND GROUND CABLE CONNECTIONS. KIT
6. HARDWARE KIT IS SUPPLIED FOR INPUT, OUTPUT,
INCLUDES 1/2" BOLTS, WASHERS, AND NUTS FOR
CONNECTING CABLES TO THE BUS BARS.
7. THE TORQUE REQUIREMENT FOR 1/2"-13 PEM NUTS IS
428 INCH-LBS. (48 N-m).