Table of Contents
Advertisement
The power supply ON/OFF switch is not the main disconnect device and does not completely disconnect all the
circuits from the AC source.
An appropriately rated disconnect device such as circuit breaker, type B plug on power cord, etc., shall be
provided in the final installation. The disconnect device shall comply with UL/IEC 60950-1 requirements and
shall be easily accessible.
3.7.1
AC Input Connector
The AC input connector is 4-terminal wire clamp (Phoenix-Contact P/N: FRONT4-H-7.62/4) located on the rear
panel.
Use suitable wires and tightening torque as follows:
1. Wire diameter: 12AWG or 10AWG.
2. Tightening torque: 4.4-5.3Lb-inch. (0.5-0.6Nm).
3.7.2
AC Input Cord
Refer to Section 1.3.4 for details of the recommended AC input cords and to Section 3.7 for disconnected device
requirement.
3.7.3
AC Input Wire Connection
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 10mm (0.4 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 outside
opening in the AC input cover and screw the locknut securely (11-14 lb-inch/1.24-1.58Nm) into 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/1.81 – 2.03Nm) the body to
the base while holding the cable in place. Now the cable is securely fastened inside the strain relief. Refer to
Figure 3-2.
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.
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.
The power supply ON/OFF switch is not the main
"disconnect device" and does not completely disconnect
all the circuits from the AC source.
An appropriately rated "disconnect device" such as circuit
breaker, type B plug on power cord, ...etc., shall be
provided in the final installation. The "disconnect device"
for one phase units shall disconnect both supply lines
simultaneously. The "disconnected device" mustl be easily
The AC input cord is not provided with power supply.
83-517-000 Rev. A
WARNING
CAUTION
accessible.
WARNING
24
Advertisement
Table of Contents
