36
83507013 Rev G
3.7 AC Input Power Connection
CAUTION
Connection of this power supply to an AC power source should be made by an
electrician or other qualified personnel.
WARNING
There is a potential shock hazard if the power supply chassis (with
cover in place) is not connected to an electrical safety ground via the
safety ground in the AC input connector.
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.
CAUTION
AC Input Wires No Conductor Pretreatment: Phoenix Contact clamping parts are
designed so that all kinds of copper conductors can be clamped without
pretreatment.
It is forbidden to solder the conductors. The solder tin yields and fractures under
high pressure. The result is increased contact resistance and an excessive
temperature rise. In addition, corrosion caused by pickling or fluxes has been
observed on soldered conductor ends. Notch fractures at the transition point from
the rigid to the flexible conductor area are also possible.
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:
Wire diameter: 12AWG or 10AWG.
Tightening torque: 4.4
– 5.3 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.
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.
3.7.3 AC Input Cord
Refer to Section 1.3.3. for details of the AC input cords recommended for the 750W and
the 1500W models.
