Tweco PakMaster 50XL Plus - Manual (Page 19)

Manual 0-2744 13 SECTION 3: INSTALLATION PROCEDURES
Move the power selection plug to the desired input con-
nection for 208/230/240V, 380/415V, or 460V operation
per the label attached to the panel.
Voltage Selection
Connector
380/415 Volts
460 Volts
208/230/240 Volts
A-00911
Voltage Selection
Label
Figure 3-2 Input Voltage Selection
3.07 Primary Input Power Cable
Connections
Units ordered as 230V, single-phase, will have a six foot
power input cable and plug factory installed. For all other
units, a cable must be provided by end user. Recom-
mended cable sizes are specified in Appendix I.
1. Route the primary power cable through the strain re-
lief fitting in the rear panel of the Power Supply and
tighten strain relief screws.
AC Input Power
Cable Strain Relief
AC Input
Power Cable A-00912
Figure 3-3 AC Input Power Cable Strain Relief
2. Connect the input cable inside the Power Supply for
the type of operation per the following:
Three-Phase Operation
Three-phase operation requires a 3-conductor cable
with ground.
a. Locate the ground stud and remove the top nut
and washer.
b. Install a lug terminal on the ground wire.
c. Place the ground wire onto the ground stud
and secure with the nut and washer.
d. Insert the other three wires into the L1, L2, and
L3 terminals on the contactor.
e. Tighten all set screws.
AC Input
Power Cable
L1
L2
L3
GND
Input Contactor
A-01329
Figure 3-4 Primary Power Cable Connections -
Three-Phase Operation
Single-Phase Operation
Single-phase operation requires a 2-conductor cable
with ground.