.51 DIA.

PEM NUT

GROUND BUS

INPUT/OUTPUT BUS

FRONT VIEW

RIGHT SIDE VIEW

PEM NUT

NEUTRAL BUS

RIGHT SIDE VIEW

SOURCE 1 INPUT Ø A, Ø B, Ø C

NOTES:

1.ALL DIMENSIONS ARE IN INCHES AND (MILLIMETERS).

2.TOP AND BOTTOM CABLE ENTRY AVAILABLE THROUGH REMOVABLE ACCESS PLATES. REMOVE, PUNCH TO SUIT CONDUIT SIZE, AND REPLACE.

3.CONTROL WIRING AND POWER WIRING MUST BE RUN IN SEPARATE CONDUIT. OUTPUT CABLES SHOULD BE RUN IN A SEPARATE CONDUIT FROM INPUT CABLES.

4.ALUMINUM AND COPPER CLAD ALUMINUM CABLES ARE NOT RECOMMENDED.

5.ALL WIRING IS TO BE IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES.

6.HARDWARE KIT IS SUPPLIED FOR INPUT, OUTPUT, NEUTRAL, AND GROUND CABLE CONNECTIONS. KIT 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

428INCH-LBS. (48 N-m).

Figure 15 Electrical field connections drawing:

27

CB1

CB4

NEUTRAL BUS

CB3A

 

 

SOURCE 1 INPUT Ø A

 

 

 

 

 

 

SOURCE 2 INPUT

SOURCE 1 INPUT Ø B

 

 

 

 

 

 

Ø A, Ø B, Ø C

 

 

 

 

 

 

 

SOURCE 1 INPUT Ø C

 

 

 

 

 

 

 

NEUTRAL BUS

 

 

 

 

 

 

CB2

 

 

 

 

 

 

 

 

SOURCE 1

 

 

SOURCE 2

 

CB5

 

CB1

 

CB2

 

 

 

 

 

 

 

 

 

 

 

K1

 

 

K2

 

 

CB3

 

 

 

 

 

 

 

 

K2 K3

CB4

CB3A

CB3

K1 K3

CB5

 

SYSTEM OUTPUT

 

 

 

 

 

 

 

Ø A, Ø B, Ø C

 

 

 

 

 

 

 

FRONT

 

 

 

 

 

 

GROUND

 

 

 

SYSTEM OUTPUT

 

 

BUS

 

 

 

 

 

SECTION A-A

 

 

ONE-LINE DIAGRAM

 

 

FRONT VIEW

 

 

 

 

SIDE VIEW

 

 

 

 

PS212101

(WITH FRONT PANELS REMOVED)

 

 

 

 

 

 

 

 

 

 

 

Rev. 3

 

100 – 250 amp STS2 with dual output breakers

Installation Drawings

Page 35
Image 35
Liebert POWER PROTECTION STATIC TRANSFER SWITCH manual 100 250 amp STS2 with dual output breakers