Large Scale Solar · DC Collection
Ampfusion™
Complete, integrated DC collection architecture from panel string to inverter. Custom-engineered, project-ready, built for utility-scale solar.
About the Brand
What Is Ampfusion?
Ampfusion is a registered brand of EESA — Economical Engineering Services Australia Pty Ltd. It is EESA's dedicated product line for PV combiner box and DC collection solutions, purpose-engineered for utility-scale solar farms.
Every Ampfusion product is backed by EESA's 17+ years of experience servicing the Australian energy sector, with contracts across utility-scale solar projects delivering over 3 GW of installed solar capacity.
EESA is an Australian-owned electrical solutions partner supporting energy, infrastructure, and industrial projects across Australia, New Zealand, and the Pacific Islands.
EESA's management systems are certified to ISO 9001, ISO 14001, and ISO 45001 — quality, environmental, and workplace safety across all operations.
A PV combiner box aggregates DC output from multiple PV strings into a single, higher-current circuit — with fuse protection, surge protection, and DC isolation.
Real-time wireless string monitoring is available across the range — to maximise energy yield and minimise O&M costs.
Design Philosophy
Engineered to Optimise Cost & Performance
Every Ampfusion combiner box is engineered to optimise both cost and performance without compromising quality or safety. Three principles run through the entire range.
Horizontal busbar arrangement promotes even heat dissipation across all fuse positions, preventing thermal hotspots that reduce fuse ratings and trigger nuisance trips.
Rust-proof FRP enclosures eliminate the corrosion risk inherent in powder-coated metal boxes. UV-tested for 5,000 hours for long-term outdoor reliability.
Ample internal wiring space for proper busbar spacing and flexible wire bends. Stainless steel lockout/tagout provisions ensure safe isolation procedures.
Certifications & Compliance
Built to Standard.
All Ampfusion products comply with Australian and international electrical standards, certified by Integrated Quality Certification Private Limited (IQC), accredited by JAS-ANZ.
Products in This Category
Explore the Ampfusion Range.
Ampfusion products are grouped into three categories. Select a category to view its products and full specifications.
DC Boxes & Accessories
DC disconnector boxes and enclosure accessories for the final inverter/transformer transition.
Non-String Monitoring Combiner Boxes
Standard combiner boxes with fuse protection, DC isolation, and surge protection.
String Monitoring Combiner Boxes
Wireless real-time per-string current monitoring — no wired comms infrastructure required.
Ampfusion™ Enquiry
Get a Quote for These Products.
All Ampfusion combiner boxes are custom-engineered to project requirements. Talk to our technical team to begin your quotation.