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Page 16
4.5 VOLTAGE SELECTION ADJUSTMENT
Certain devices, such as the Voltage Selection Panel,
sensing relays and timers, need to be set and/or calibrated
prior to placing the transfer switch equipment into service.
Adjustments for logic devices are described in the separate
instructional document dedicated to the specific logic being
used. Voltage selection adjustments are described here.
!
BE SURE THAT THE CORRECT VOLTAGE IS
SELECTED TO MATCH THE SYSTEM VOLTAGE. AN
IMPROPER SELECTION AND/OR CONNECTION
COULD RESULT IN EQUIPMENT DAMAGE.
Table 4.1 Wire Size for Power Cable Connections
Switch
Cables
Rating
(Amps)
Phase
600-1200
1600-2000
2500-3000
4000
Figure 4-3 Side View and Rear View of Power Panel (terminal connections for SPB 800-1200 AMP, see Figure 4-2)
CAUTION
Range
Per
Wiring Size
4
4/0-500 MCM
8
4/0-500 MCM
12
4/0-500 MCM
16
4/0-500 MCM
4.6 WIRING
POWER CONDUCTORS AND CONTROL WIRING
MAY HAVE VOLTAGE PRESENT THAT CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH. DE-
ENERGIZE ALL POWER OR CONTROL CIRCUIT
CONDUCTORS BEFORE BEGINNING TO PERFORM
ANY WIRING ACTIVITY TO OR WITHIN THE TRANS-
FER SWITCH EQUIPMENT.
Power sources, load conductors and control wiring
should be connected to locations as indicated in the
Customer Wiring Diagrams supplied with the transfer
switch equipment.
4.6.1 ENGINE START CONNECTION
The engine control contact connections are located on
the lower right of the transformer panel of the ATS
(Figure 3-5). Connect the engine start wires to the red
terminal blocks marked 51 and 52. A contact closes
between these terminal blocks when an engine start sig-
nal is provided by the ATS logic.
Normal
Connections
Load
Connections
Emergency
Connections
I.B. ATS-CP01
!
CAUTION
Effective 5/98
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