Load Connection; Load Wiring; Table 2.3 Current Carrying Capacity For Wiring - Xantrex XHR 7.5-130 Operating Manual

Load Connection

This section provides recommendations for load wires and how to connect them for
both single and multiple load configurations.
Load Wiring When connecting load wiring to the power supply, consider the following factors:
•
•
•
Insulation Rating
Current Capacity As a minimum requirement, 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 even if the load is shorted.
maximum current rating, based on 450 A/cm
105 °C operation. Operating at the maximum current rating results in an approximate
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 2.3 Current Carrying Capacity for Wiring

Wire Size
(AWG)
18
16
14
12
10
Revision A
Current capacity and voltage rating of the wire
Maximum load wiring length for operation with sense lines
Noise and impedance effects of the load lines
WARNING
There is a potential shock hazard at the output when using a power supply with a
rated output greater than 40 V. Use load wiring with a minimum insulation rating
equivalent to the maximum output voltage of the power supply. For example,
select TEW-105, 105 °C, 600 V wiring for use with a 600 V, 1.7 A power supply.
Maximum Current
(A)
4
6
10
16
21
Table 2.3
2
, for various gauges of wire rated for
Wire Size Maximum Current
(AWG) (A)
8 36
6 61
4 97
2 155
Installation
Load Connection
shows the
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