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Installation Drawings
29
Figure 16 Electrical field connections drawing: 400 – 600 amp Liebert STS2 with single output breaker
PS212400
Rev. 2
CB1
CB4
GROUND BUS
FRONT VIEW
RIGHT SIDE VIEW
NEUTRAL BUS
BUS
GROUND
PEM NUT
RIGHT SIDE VIEW
INPUT/OUTPUT BUS
.51 DIA.
NEUTRAL
BUS
CB3
CB5
CB2
(WITH FRONT PANELS REMOVED)
FRONT VIEW
SYSTEM OUTPUT
Ø A, Ø B, Ø C
SOURCE 2 INPUT
Ø A, Ø B, Ø C
SOURCE 1 INPUT
Ø A, Ø B, Ø C
SIDE VIEW
SECTION A-A
SOURCE 1 INPUT Ø A
NEUTRAL BUS
PEM NUT
SOURCE 1 INPUT Ø B
SOURCE 1 INPUT Ø C
FRONT
SYSTEM OUTPUT
ONE-LINE DIAGRAM
K3K2
CB4
K1
CB3
K3K1
K2
CB5
SOURCE 1
CB1 CB2
SOURCE 2
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.
428 INCH-LBS. (48 N-m).
7. THE TORQUE REQUIREMENT FOR 1/2"-13 PEM NUTS IS