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REFUgak

Product catalog summary

Overview: The REFUgak 1000V is a DC combiner box designed to enhance the efficiency of large-scale photovoltaic (PV) systems by clustering multiple strings. It supports up to 24 strings at 1000 V and 32 strings at 1500 V, connecting to the inverter with a single cable. The system includes features for string monitoring and safeguarding, with optional remote-controlled DC-main switch.

Specifications:

String Connections: Supports configurations with 8 to 20 string connections, with double assignment options.
Current Measurement: Offers 8 to 20 measuring channels with a range of -25 A to +25 A at max. 1000 VDC, precision of ±0.5%.
Voltage Measurement: Range of 0 V to 1000 VDC, precision of ±0.5%.
Temperature Range: Operational from -30 °C to +100 °C, precision of ±2%.
Electrical Data: Rated operational voltage up to 1000 VDC, current up to 230 ADC, impulse withstand voltage of 6000 VDC.
Interfaces: Includes CANopen data interface, with options for motor-driven DC main switch and overvoltage arresters.

General Data:

Operating Temperature: -25 °C to +45 °C, storage temperature -30 °C to +70 °C.
Humidity: Up to 95% non-condensing.
Protection: IP54 rated, compliant with EN 62262.
Standards: Conforms to EN 50178, EN 60439-1, EN 61000-6-2, EN 61000-6-3, EN 60269-6.
Dimensions and Weight: Varies by model, with dimensions ranging from 750 mm to 1000 mm in width and weight from 36 kg to 45 kg.

Key Features: The REFUgak system is designed for outdoor use with integrated DC disconnect switch, string safeguarding, and monitoring capabilities. It communicates directly with the inverter, providing error diagnostics and protection for connected strings and PV modules.

Catalog excerpts

Technical datasheet REFUgak 1000V Clustering and monitoring at string level Outdoor (IP54) Integrated DC disconnect switch String safeguarding String monitoring DC-main switch optional with remote control Increase the efficiency of large-scale PV systems by concentrating multiple strings. The REFUgak DC combiner box can concentrate up to 24 strings (at 1500 V: 32 strings) in a single REFUgak. This concentrated power unit is connected to the inverter using just one cable. REFUgak monitors your system and diagnoses errors at string level. In the event of an error, REFUgak protects the connected strings and PV modules from being damaged. REFUgak communicates directly with the inverter without additional components, and is available in a 1000 V model, with a 1500 V model on request. PV-Generator DC CAN-Bus REFUgak PV-Generator REFUsol 333K REFUgak PV-Generator REFUgak PV-Generator REFUgak 690 VAC

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TECHNICAL DATA REFUgak REFUgak REFUgak REFUgak REFUgak REFUgak REFUgak STRING CONNECTIONS CURRENT MEASUREMENT ELECTRICAL DATA GENERAL DATA Subject to modification. Technical specifications are subject to change without notice. REFUso/CmbH | Uracher StraKe 91 | 72555 Metzingen | Germany | Tel. +49 7123 969-0 | Fax+49 7123 969-165 | [email protected]

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REFUgak

REFUgak

Catalog excerpts

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