PV Products for Connection Technology, Safety and Energy Storage
PV products such as firefighter switches, PV combiner boxes, DC combiners, AC connection boxes and energy storage systems – designed as standard solutions or project-specific solutions for professional photovoltaic systems.
Firefighter Switches & Generator Disconnection
QFire BIG
Firefighter Switch
Galvanic isolation of up to 24 PV strings per switching box in accordance with IEC 60947-3. Centrally controlled and modularly expandable system for larger PV installations.
QFire LITE
Firefighter Switch
Galvanic isolation of 2 or 4 PV strings in accordance with IEC 60947-3. Compact standard solution for smaller PV systems up to 1,500 V DC. Optionally available with Type 1+2 combined SPD.
DC Connection Technology
Custom PV Combiner Boxes
Project-specific PV combiner boxes with individually coordinated connection, protection and switching functions. Designed to match the respective MPPT and inverter structure.
LITE DC-Combiner – Standard PV Combiner Solutions
Preconfigured PV combiner boxes for 1 to 3 MPP trackers. Compact solutions with clearly defined connection and protection functions. Standard PV combiner solution.
Super Multi Box –
Intelligent DC Combiner
Intelligent DC combiner with individual string current measurement, string monitoring and selective fault isolation. For agri-PV and large-scale PV systems with central inverters.
AC & Grid Technology
Custom AC Connection
Boxes
AC connection boxes for inverters, points of connection and grid connections. Project-specific design for different grid configurations and currents up to 630 A.
Q3 SurgeBox TN-S Compact – AC Surge Protection Box
Ready-to-connect surge protection box from Q3 for TN-S systems with Type 1+2+3 combined SPD. For PV AC connection, EV charging, heat pumps and building services.
Q3 Transformer Station Monitoring
Retrofittable measurement and communication box for transformer stations. Captures grid and system data for central monitoring.
Q3. The Box Makers.
Energy Storage
AlphaESS Energy Storage Solutions for Residential, Commercial and Industrial Applications
AlphaESS energy storage systems ranging from residential storage to commercial and large-scale systems. For B2B projects with technical planning and project support from Q3 ENERGIE.
Looking for the Right Solution for Your Project?
Choose a PV product or send us your technical project inquiry directly. We support you with standard solutions as well as custom connection boxes and project-specific designs.
Standardized and Project-Specific Designs
PV products and standard solutions for typical applications, as well as custom-engineered connection technology for differing electrical, regulatory or structural requirements.
Design, Engineering, and Manufacturing in Germany
Planning, electrical design, component assembly and manufacturing at our Kaufbeuren site – with short communication lines and high configuration flexibility for PV products.
Technically Structured
Inquiry Processes
Product-specific inquiry forms capture all relevant electrical and project parameters as the basis for fast and reliable preparation of your PV project quotation.