Stringbox BIG
- Individually interchangeable
- Plastic or steel housing possible
- Everything available from standard to high-end
Areas of application
Large systems in the megawatt range, ground-mounted systems and large rooftop systems (e.g. factory buildings).
Basic structure of Stringbox BIG
The Stringbox BIG is a generator connection box for large systems. There are 5 standard variants with 8, 12, 16, 20 and 24 inputs. All the usual modules for large systems such as DC disconnectors, overvoltage protection, PV fuses, current sensors and string monitoring can be integrated here. The Stringbox BIG is usually planned and assembled to customer specifications. Nothing is left to be desired here. We can even monitor wirelessly - via LoRa WAN! Simply save yourself the trouble of wiring!
String boxes and generator connection box from Q3
Our generator junction box ensure a high level of safety right from the installation stage and guarantee clean and clear wiring (wiring) of PV modules on the roof or in the open field. Several strings often have to be connected in parallel in order to transport suitable power to the inverter at reasonable system voltages. The individual strings are connected directly to the modules in the string box and connected to the inverter input with just two cables (plus and minus). Each generator connection box contains a pressure equalization element as standard for effective protection against condensation.
Technische Daten Stringbox BIG | |
Eingang | |
Anzahl der Strings | 8 bis 24 |
I max. pro String | 30 A |
U max. pro String | 1 kV |
Kontaktierung | M12/M16/M20/M25 (nach Wahl) |
Stecker Kabelquerschnitt | 1 bis 25 mm² |
Ausgang | |
Anzahl der Ausgänge | 1 |
I max. pro String | 800 A |
U max. pro String | 1 kV |
Kontaktierung | M40/M50/M63/M75 (nach Wahl) |
Stecker Kabelquerschnitt | 95 bis 300 mm² |
Allgemein | |
Gehäuse | Stahlblechgehäuse, IP55, optional mit Lüfter/Heizung |
Optional | |
DC Freischalter | |
Überspannungsschutz T1+T2/T2 | |
Stringstrommessung | |
Spannungsmessung | |
Datenübertragung via RS485 | |
Datenübertragung via LoRa/GSM (kabellos) |
Our portfolio in the field of connection technology, string boxes, generator connection boxes (GAK)
Stringbox Simple
Extremely low profile, up to 5 inputs
Stringbox Easy
Extremely compact, up to 18 inputs
Duo/Trio channel
Stringbox with galvanically isolated circuit boards
Stringbox BIG
Generator connection box for large systems/parks
AC sub-distribution board
Customer-specific variant with ÜSS T1+T2
Generator connection box "large"
with overvoltage protection
Generator connection box "small"
with overvoltage protection