Product Manual

Specifications

900-0161-01-01 Rev B

Environmental Specifications

Table 14 Environmental Specifications for Radian Models

Specification Value

Rated Temperature Range (meets component specifications; however,

please note that the inverter output wattage is derated above 25°C)

–4°F to 122°F (–20°C to 50°C)

Operational Temperature Range (functions, but not rated for operation;

does not necessarily meet all component specifications)

–40°F to 140°F (–40°C to 60°

Storage Temperature Range –40°F to 140°F (–40°C to 60°C)

IP (Ingress Protection) Rating of Enclosure IP20

Environmental Category Indoor unconditioned

Wet Locations Classification Wet locations: No

Relative Humidity Rating 93%

Pollution Degree Classification PD 2

Maximum Altitude Rating 6561’ (2000 m)

Overvoltage Category (AC Input) 3

Overvoltage Category (DC Input) 1

Temperature Derating

All Radian inverters can deliver their full rated wattage at temperatures up to 25°C (77°F). The

maximum wattage is rated less in higher temperatures. Above 25°C, the GS8048A is derated

by a factor of 80 VA for every increase of 1°C. The GS4048A is derated by 40 VA per 1°C.

Figure 11 is a graph of wattage over temperature, showing the decrease in rated wattage with

increased temperature. The graph ends at 50°C (122°F) because the Radian inverter is not

rated for operation above that temperature.

Figure 11 Temperature Derating

8000

6000

4000

2000

10°C

50°F

20°C

68°F

30°C

86°F

40°C

104°F

50°C

122°F

Output

atts

25°C

77°F

3000