83-507-013 Rev. A
15
Fig.3-2: Stripped Wires installed in Strain Relief
Screw-on
Locknut
3.7.1 AC Input Connector, 1500W models
The AC input connector is a 3-Terminal wire clamp located on the rear panel. Use suitable wires and
tightening torque as follows:
1. Wire diameter: 12AWG or 10AWG.
2. Tightening torque: 6.5 - 7.0 Lb-inch.
3.7.2 AC Input Connector, 750W models
An IEC connector is provided on the rear panel for connecting the unit to the AC power source with an
AC cord. The IEC connector also provides the safety ground connection while the AC cord is plugged
into an appropriate AC receptacle.
3.7.3 AC Input Cord
Refer to Section 1.3.4 for details of the AC input cords recommended for the 750W and the 1500W mod-
els.
3.7.4 AC Input Wire Connection, 1500W models
1. Strip the outside insulation of the AC cable approx. 10cm (3.94 inches). Trim the wires so that the
ground wire is 10mm (0.4 inches) longer than the other wires. Strip 14mm (0.55 inches) at the
end of each of the wires.
2. Unscrew the base of the strain relief from the helix-shaped body. Insert the base through the out-
side opening in the AC input cover and screw the locknut securely (11-14 Lb-inch.) the base,
from the inside.
3. Slide the helix-shaped body onto the AC cable. Insert the stripped wires through the strain relief
base until the outer cable jacket is flush with the edge of the base. Tighten (16-18 Lb-inch.) the
body to the base while holding the cable in place. Now the cable is securely fastened inside the
strain relief. Refer to Fig. 3-2.
4. Route the AC wires to the input connector terminals as required. To connect the wires, loosen the terminal
WARNING
The AC input cord is the disconnect device of the power
supply. The plug must be readily identifiable and accessible
to the user. The AC input cord must be no longer than 3m.
WARNING
Some components inside the power supply are at AC voltage
even when the On/Off switch is in the “Off” position. To avoid
electric shock hazard, disconnect the line cord and load and
wait two minutes before removing cover.
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