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IB140058EN
Instructional Booklet
Page
16
Effective: March 2016
O&M Manual for 30-1000 Amperes
Manual Transfer Switch
4.6 Wiring
Power sources, load conductors and control wiring should be con-
nected to locations as indicated in the Customer Wiring diagram
supplied with the transfer switch equipment. Only applicable if
these options are added.
Once the transfer switch equipment has been installed and wired,
perform initial mechanical and electrical procedures as outlined in
Section 6 to verify that the equipment is installed and operating
properly.
4.7 Voltage Selection Adjustments - based on
configuration
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 Section 3.5. Voltage selection adjust-
ments are described here
Figure 16. Line Voltage Plug and Receptacles (Shown with
Covers Removed) for Horizontal Design.
Vertical Design Voltage Selection
The vertical design transfer switch is furnished with a multi- tap
Voltage Selection Panel to the right of the power panel. Seven
front accessible taps from 208 to 600 Vac are provided (Figure 9).
A small disconnect plug is provided to change from one voltage to
another.
Horizontal Design Voltage Selection
Horizontal design transfer switches are furnished with an adjust-
able line voltage plug and receptacles below the power panel. To
change the line voltage, remove the covers and insert the plug in
the desired receptacle (Figure 17).
CAUTION
POWER CONDUCTORS AND CONTROL WIRING MAY HAVE VOLT-
AGE PRESENT THAT CAN CAUSE SEVERE PERSONAL INJURY OR
DEATH. DE-ENERGIZE ALL POWER OR CONTROL CIRCUIT CONDUC-
TORS BEFORE BEGINNING TO PERFORM ANY WIRING ACTIVITY TO
OR WITHIN THE TRANSFER SWITCH EQUIPMENT
CAUTION
DO NOT RUN POWER CABLES BEHIND OR TO THE LEFT OF THE
POWER PANEL. THE CABLES SHOULD BE RUN IN THE GUTTER
SPACE PROVIDED. RUNNING THE CABLES IN PLACES NOT RECOM-
MENDED COULD INTERFERE WITH THE PROPER OPERATION OF THE
TRANSFER SWITCH.
CAUTION
CHECK THE TRANSFER SWITCH EQUIPMENT NAMEPLATE FOR
RATED VOLTAGE. IT SHOULD BE THE SAME AS THE NORMAL AND
EMERGENCY LINE VOLTAGES. OPERATING THE EQUIPMENT ON
IMPROPER VOLTAGE CAN CAUSE EQUIPMENT DAMAGE.
NOTICE
REMEMBER TO RE-ATTACH THE SOLID STEEL POWER PANEL DEAD-
FRONT SHIELD TO THE RATCHET ASSEMBLY ON THE VERTICAL
DESIGN AFTER COMPLETING ANY OF THE PROCEDURES
DESCRIBED IN THIS SECTION.
CAUTION
BE SURE THAT THE CORRECT VOLTAGE IS SELECTED TO MATCH
THE SYSTEM VOLTAGE. AN IMPROPER SELECTION AND/OR CON-
NECTION COULD RESULT IN EQUIPMENT DAMAGE.
