REFUsol_003-005K

Product catalog summary

Overview: The REFUsol 003K–005K series are single-phase, transformerless string inverters designed for home use. They are characterized by their light and compact design, high efficiency of up to 97.7%, and natural convection cooling. These inverters are suitable for outdoor installation with an IP66 protection rating, making them maintenance-free and ideal for roof systems starting from 3.6 kW.

Specifications: The inverters have a nominal power range of 3.6 to 4.6 kW and can feed into the low voltage network. They feature a maximum DC voltage of 880 V and a maximum AC current ranging from 16 to 20 A, depending on the model. The MPPT range varies slightly across models, with a maximum PV power of up to 5.4 kW.

Performance and Monitoring: The inverters offer fast and precise MPP tracking, contributing to their high efficiency. They can be monitored using the REFUlog data management system, which allows for remote access via computer or smartphone. The system supports RS485 and RS232 interfaces for connectivity.

Environmental and Safety Features: The inverters operate within an ambient temperature range of -20 to +60°C and are suitable for elevations up to 2000 meters. They include internal overvoltage protection and comply with various international standards, including EN 61643-11 and IEC 62103.

Physical Characteristics: The inverters have dimensions of 320 mm in width, 720 mm in height, and 250 mm in depth, with a weight ranging from 27 to 28 kg depending on the model.

Catalog excerpts

Technical datasheet REFUsol 003K– 005K For use at home Light & compact Highest efficiency (97.7%) Natural convection cooling Outdoor (IP66) Maintenance free In the market for single-phase1), transformerless string inverters, we offer the REFUsol inverter with nominal power of 3.6 to 4.6 kW. These feed into the low voltage network and their high IP66 protection class makes them particularly suitable for roof systems from 3.6 kW upwards, installed either inside or out. Thanks to fast and precise MPP tracking, efficiency levels of up to 97.7% are possible. Our data management system REFUlog enables you to display and evaluate operating and performance data for each PV system. With the integrated RS485 interface, our REFUpmu power management unit, and an Internet connection you can monitor your system via the inverter at any time, anywhere in the world, on your computer or on a smartphone using the REFUlog app. 1) Feed-in: 1 phase

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REFUsol_003-005K

REFUsol_003-005K

Catalog excerpts

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