Product Manual

Specifications
900-0145-01-01 Rev B 65
Temperature Derating
All Radian inverters can deliver their full rated wattage at temperatures up to 25°C (77°F). The Radian
maximum wattage is rated less in higher temperatures. Above 25°C, the GS7048E is derated by a
factor of 70 VA for every increase of 1°C. The GS3548E is derated by 35 VA per 1°C.
Figure 18 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 18 Temperature Derating
Certifications
The Radian GS3548E and GS7048E are certified to the following standards:

IEC 62109-1:2010 — Safety of Power Converters for use in Photovoltaic Systems (2010)

IEC 62477-1:2012 — Safety Requirements for Power Electronic Converter Systems and Equipment

EN 61000-6-1 — EMC Standard: Immunity for Residential, Commercial, and Light-Industrial Environments

EN 61000-6-3 — EMC Standard: Emissions for Residential, Commercial, and Light-Industrial Environments

EN 61000-3-3 — EMC Standard: Limitation of Voltage Changes, Voltage Fluctuations, and Flicker in Public
Low-Voltage Supply Systems

AS4777.2 and AS4777.3 — Grid Connection of Energy Systems via Inverters

AS/NZS 3100 — General Requirements for Electrical Equipment
Compliance

RoHS: per directive 2011/65/EU
These inverter/charger models have grid-interactive functions. All models are
tested to comply with certain limits for acceptable output voltage ranges,
acceptable output frequency, total harmonic distortion (THD) and anti-islanding performance when
10°C
50°F
40°C
104°F
50°C
122°F
25°C
77°F
8000
6000
4000
2000
0
0
Output
Watts
5250
7000
2625
20°C
68°F
30°C
86°F