Inverter Capacity Vs Temperature; Figure 20, Inverter Capacity Vs. Temperature - Xantrex 120 VAC/60 Owner's Manual

OPERATION

INVERTER CAPACITY VS TEMPERATURE

The current protection circuit in the SW Series Inverter/Charger is temperature compensated, therefore
the maximum sized load that the inverter can run changes with temperature. As the temperature of the
power devices (FET's) increase, the allowable current is reduced. When the available current is reduced,
the capacity of the inverter to run loads is reduced.
The graph below shows the effect temperature has on the inverter's capacity to run loads, notice that the
inverter reduces its capacity at temperature above 25 C. The temperature derating graph assumes that
the inverter is at sea level and the airflow to the inverter is unrestricted.
120
100
Percent
of
80
total
rated
60
power
capacity
40
20
0
25

Figure 20, Inverter Capacity vs. Temperature

2001 Xantrex Technology, Inc.
Page
5916 - 195th Street N. E.
60
Arlington, WA 98223
Temperature Derating for SW Series Inverters
32.5 40 47.5 55 62.5
Temperature C
70 77.5 85 92.5
Telephone: 360/435-8826
Fax: 360/435-2229
www.traceengineering.com
100
SW Series Inverter/Charger
Part No. 2031-5
Rev. C: February 2001