IB01602046E
For more information visit: www.eaton.com
Instruction Booklet
Effective: July 2010
Page
13
2-Position Contactor Based
Non-Automatic Transfer Switch
4.4 Power Cable Connections
Test all power cables prior to connection to the unit to ensure
that the conductors or cable insulation have not been damaged
while being pulled into position.
Power cables are to be connected to solderless screw type lugs
located on the non-automatic transfer switch switching devices.
Refer to the separate Customer Wiring Booklet supplied with the
non-automatic transfer switch equipment for power termina-
tion. Verify that the lugs supplied will accommodate the power
cables being used. Also verify that the cables comply with local
electrical codes. Standard non-automatic transfer switch equip-
ment, as supplied from the factory, will accommodate the wire
sizes shown in Table 4.
Carefully strip the insulation from the power cables to avoid nick-
ing or ringing of the conductor strands. Prepare the stripped con-
ductor termination end by cleaning it with a wire brush. If
aluminum conductors are used, apply an appropriate joint com-
pound to the clean conductor surface area.
Tighten the cable lugs to the torque identified on the label affixed
to the door of the unit.
4.5 Wiring
Power sources, load conductors, and control wiring should be
connected to locations as indicated in the Customer Wiring Book-
let supplied with the non-automatic transfer switch equipment.
Once the non-automatic transfer switch equipment has been
installed and wired, perform the initial mechanical and electrical
procedures as outlined in Section 6 to verify that the equipment
is installed and operating properly.
Table 4. Transfer Switch Equipment Wire Sizes
WARNING
POWER CONDUCTORS MAY HAVE VOLTAGE PRESENT THAT CAN
CAUSE SEVERE PERSONAL INJURY OR DEATH. DE-ENERGIZE ALL
POWER OR CONTROL CIRCUIT CONDUCTORS TO BE CONNECTED
TO THE NON-AUTOMATIC TRANSFER SWITCH EQUIPMENT
BEFORE BEGINNING TO WORK WITH THE CONDUCTORS AND/OR
TERMINATING THEM TO THE EQUIPMENT.
CAUTION
USE OF CABLE LUGS NOT DESIGNED FOR THE NON-AUTOMATIC
TRANSFER SWITCH MAY CAUSE HEATING PROBLEMS.
CAUTION
TO HELP PREVENT COMPONENT DAMAGE OR FUTURE MALFUNC-
TIONS, USE EXTREME CARE TO KEEP CONTAMINANTS OUT OF
THE NON-AUTOMATIC TRANSFER SWITCH EQUIPMENT WHEN
MAKING POWER CABLE CONNECTIONS.
CAUTION
RUN THE POWER CABLE THROUGH THE GUTTER SPACE PROVIDED
TO THE RIGHT OR LEFT OF POWER PANEL.
WARNING
IMPROPER POWER CABLE CONNECTIONS CAN CAUSE EXCESSIVE
HEAT AND SUBSEQUENT EQUIPMENT FAILURE.
WARNING
POWER CONDUCTORS AND CONTROL WIRING MAY HAVE VOLT-
AGE PRESENT THAT CAN CAUSE SEVERE PERSONAL INJURY OR
DEATH. DEENERGIZE ALL POWER OR CONTROL CIRCUIT CON-
DUCTORS BEFORE BEGINNING TO PERFORM ANY WIRING ACTIV-
ITY TO OR WITHIN THE NON-AUTOMATIC TRANSFER SWITCH
EQUIPMENT.
CAUTION
ENSURE THE NON-AUTOMATIC TRANSFER SWITCH VOLTAGE IS
SET CORRECTLY. IT SHOULD BE THE SAME AS THE SOURCE 1
AND SOURCE 2 LINE VOLTAGES. OPERATING THE EQUIPMENT ON
IMPROPER VOLTAGE CAN CAUSE EQUIPMENT DAMAGE.
TRANSFER SWITCH AMPERE RATING
WIRE SIZE RANGES
NUMBER OF CABLES PER PHASE
TERMINAL TEMPERATURE RATING °C (°F)
100
#14-2/0
1
75 (167)
200
#6-250 KCMIL
1
75 (167)
320
#4-600 KCMIL or (2) 1/0-250 KCMIL
1 or 2 - depending on wire size used
75 (167)
400
#4-600 KCMIL or (2) 1/0-250 KCMIL
1 or 2 - depending on wire size used
75 (167)
600
#2-600 KCMIL
2
75 (167)
