Stringbox with surge protection
T1+2 for 1, 2 or 3 MPPT!
- Ready-to-connect stringbox
- for connecting up to 2 strings per MPPT
- MC4 EVO2 connector
- in IP65/67 housing
- according to DIN EN IEC 61643-31 and EN 50539-11:2013+A1
- for photovoltaic systems up to 1,500 VDC
- Made in Germany
Ready-to-connect GAK in IP65/67 enclosure according to DIN EN IEC 61643-31 and EN 50539-11:2013+A1
The Q3 Solar/PV surge protection junction box is a high quality and flexible solution to protect against lightning, surges and other electrical disturbances. It protects not only the solar modules, but also the connected inverter and cabling infrastructure.
SPD Stringbox 1 MPPT
Stringbox with Q3 combination arrester SPD T1&2 for 1 MPPT. 2 inputs per MPPT (for 2 strings) via MC4 PV connector, 2 separate outputs per MPPT via MC4 PV connector. PE input via cable gland (with membrane) M20. Polycarbonate case 175x250 with transparent cover. Remote signalling contact can be connected to the module. Cable entry for remote signalling contact via M12.
SPD Stringbox 2 MPPT
Stringbox with 2x Q3 combination arrester SPD T1&2 for 2 MPPT. 2 inputs per MPPT (for 2 strings) via MC4 PV connectors, 2 separate outputs per MPPT via MC4 PV connectors. PE input via cable gland (with membrane) M20. Polycarbonate case 175x250 with transparent cover. Remote signalling contact pre-wired and connected to 2 terminals. Cable entry for remote signalling contact via M12.
SPD Stringbox 3 MPPT
Stringbox with 3x Q3 combination arrester SDP T1&2 for 3 MPPT. 2 inputs per MPPT (for 2 strings) via MC4 PV connectors, 2 separate outputs per MPPT via MC4 PV connectors. PE input via cable gland (with membrane) M20. Polycarbonate case 300x300 with transparent cover. Remote signalling contact pre-wired and connected to 2 terminals. Cable entry for remote signalling contact via M12.
Technical specifications Q3 surge protection
| Überspannungsschutz GAK Standard | 1 MPPT | 2 MPPT | 3 MPPT |
|---|---|---|---|
| Mechanik | |||
| Gehäuse Abmessung (ohne Stecker) | |||
| Material | |||
| Farbe | |||
| Deckel | |||
| Belüftung | |||
| PV Anschlüsse (Eingang und Ausgang) | |||
| Anschüsse PE | |||
| IP Schutzart | |||
| Schlagfestigkeit | |||
| Isolation Gehäuse | |||
| Elektrisch | |||
| Anzahl der anschließbaren MPP Tracker | |||
| Anzahl Strings pro MPPT | |||
| Anzahl SPD | |||
| SPD Fernmeldekontakt | |||
| Kabeleinführungen | |||
| Klemme für PE | |||
| Überspannungsschutz | |||
| Produkt | |||
| Klasse (IEC) | |||
| Norm | |||
| Schutzelement | |||
| Maximale Betriebsspannung | |||
| Fehleranzeige | |||
| Umgebung | |||
| Artikelnummer | |||
Our portfolio in the area of connection technology, string boxes
Stringbox Simple
ultra low profile, up to 6 inputs
Stringbox Easy
ultra compact, up to 18 inputs
Duo-/Trio-Channel
String box with galvanically separated circuit boards
Stringbox BIG
Stringbox for large systems and parks
AC sub-distribution
customised variant with SPD T1+T2
Specialboxes
cost-optimised - benefit-optimised
Stringbox "big"
with surge protection
Stringbox "small"
with surge protection
Experience, for your safety!
Since 2010, we have been building string boxes and AC combiners in all variations and for the most diverse applications, especially in the PV sector. From simple DC disconnect boxes to complex junction boxes for multi-MW PV power plants, a large number of installations worldwide are equipped with Q3's proven technology. This experience is to your advantage - do not compromise - because the subject of connection technology in PV applications with high currents and voltages in sometimes complicated installation situations is also a safety issue.
Highest quality
We only use components from reputable manufacturers. The dimensions of the individual terminals, assemblies, connectors, etc. are precisely calculated and proven for use in the PV sector.