NGPS – User’s Manual
36
Recommended Cable Size for Input Connection are listed in
Input voltage
Current RMS per phase
Recommended copper
wire size
208 V
34 A
6 mm
2
400 V
18 A
4 mm
2
480 V
16 A
4 mm
2
Table 9:
AC cable size
The AC input current and voltage rating are marked on the rear terminal of the
power supply.
The Protective Earth Ground
must be connected before
applying AC Line Power to the power supply. There is a
potential shock hazard if the power supply chassis is not
connected to an electrical safety ground via the safety ground
in the AC input connector!
Sizing of the Protective Earth Ground cable and check of the
Protective Earth impedance coordination with electrical
distribution system protections shall be carried out by the
Qualified Installer according to the standards (e.g. IEC
60364-1, IEC 60364-5-54 CEI 64-8 in Italy, etc.)
After connecting the input connector to the crate mating connection, it is
necessary to mount the metal protective cover by first screwing the four M4 threaded
screw (top and bottom of the cover in
) and then by rotating the cable fastener
).
For safety reasons, the mains supply voltage ratings should not exceed the
indicated voltage range.
WARNING
WARNING
