Q3 is a German manufacturer of intelligent connection and protection technology for photovoltaic systems, energy storage, and industrial applications. We develop and produce high-quality DC and AC system components with a strong focus on safety, reliability, and ease of installation.
Our portfolio includes DC combiner boxes, AC connection solutions, surge protection systems, and the certified QFire firefighter switch in accordance with IEC 60947-3, supporting EPCs, installers, and operators worldwide.
Highlight at Intersolar: The Super Multi Box – a smart DC combiner with integrated firefighter switch, individual string monitoring, plug-and-play connectors, and communication interfaces. Its core innovation is the PV String Fault Discriminator, which automatically identifies faulty strings and isolates them while keeping the remaining system operational. This significantly reduces downtime, maintenance effort, and yield losses in PV plants.
With Modbus, Ethernet, integrated T1+T2 surge protection up to 1500 V DC, and modular system architecture, the Super Multi Box enables future-proof solar park integration. Designed for utility-scale PV applications, Q3 solutions help maximize plant availability, reduce O&M costs, and simplify installation through plug-and-play system concepts. Our interdisciplinary team combines innovation with practical engineering experience to deliver reliable solutions for demanding energy projects.
As a manufacturer with a high level of vertical integration, Q3 offers flexible customization, short lead times, and long-term supply reliability. We combine engineering expertise with hands-on project support to create practical, efficient solutions for modern energy systems.
More information: www.q3-energie.de
More about the Super Multi Box (DC Combiner): https://wp.me/P7Garu-50c
More about the QFire firefighter switch: https://wp.me/P7Garu-3NO
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Floorplan BoothB4.476