Load Connection; Load Conductor Ratings; Load Connection And Grounding - Xantrex XKW 8-125 Operating Manual

Installation

Load Connection

Load Connection
Reliable performance of the power supply can be obtained if certain basic
precautions are taken when connecting it for use on the lab bench or installing it in
a system.
To obtain a stable, low noise output, careful attention should be paid to factors such
as conductor ratings, system grounding techniques and the way in which the load and
remote sensing connections are made.
Load As a minimum, load wiring must have a current capacity greater than the output
current rating of the power supply. This ensures that the wiring will not be damaged
Conductor
even if the load is shorted.
Ratings
450 A/cm
maximum current rating results in an approximately 30 °C temperature rise for a
wire operating in free air. Where load wiring must operate in areas with elevated
ambient temperatures or bundled with other wiring, use larger gauges or wiring rated
for higher temperatures.
Table 2.2 Current Carrying Capacity for Load Wiring
Wire Size
(AWG)
20
18
16
14
12
10
8
Load
Connection
and
Grounding
32
Table 2.2
2
, for various gauges of wire rated for 105 °C operation. Operating at the
Maximum Current (A)
2.5
4
6
10
16
21
36
WARNING
Exercise caution when using and servicing power supplies. High energy levels can
be stored at the output voltage terminals on all power supplies in normal operation. In
addition, potentially lethal voltages exist in the power circuit and the output connector
of power supplies which are rated at 40V and over. Filter capacitors store potentially
dangerous energy for some time after power is removed.
shows the maximum current rating, based on
Wire Size
Maximum Current (A)
(AWG)
6 61
4 97
2 155
1 192
1/0 247
2/0 303
Operating Manual for XKW 1kW Series Power Supply