Enhance your
solar power distribution
Harness the full potential of new power sources with the Solar String Combiner Box that improves efficiency, reliability, and sustainability.
Best-in-class features
rated for PV solar applications
Engineered to deliver exceptional performance and reliability, the Solar String Combiner Box features design elements that streamline installation, maximize safety, and optimize solar power distribution system efficiency.

Fiberglass non-metallic enclosure provides superior protection of internal components, including NEMA 4X weather ratings for water ingress protection
Supports up to 22 individual string inputs (fused positive configuration) or 15 string inputs (fused positive and negative configuration)
Main load break disconnect amperages available in 400A, 500A, and 600A
Power output to inverter is achieved with customer supplied lugs or with factory-installed Burndy compression lugs, shear bolts, or parallel
feeder brackets
Multiple input string configurations available, including blank enclosure, cable glands, and panel-mounted or whip-mounted PV connectors, for maximum installation flexibility
Designed for advanced
solar distribution applications
Built to meet the demands of modern solar infrastructure, Hubbell’s Load Break Disconnect is cETLus Certified to UL1741 (PV Standard) and seamlessly integrates into advanced solar distribution systems.

Supports both single and multi-panel solar arrays
The Solar String Combiner Box adapts to your system’s scale. It supports both single and multi-panel configurations, offering the flexibility you need for evolving solar projects.

Scaled for utility-level solar applications
Designed to handle high-voltage, high-current demands in utility-level solar applications with ease. Scalable features make it ideal for large, distributed energy systems.

Ensures uninterrupted power distribution
With features like optional surge protection, secure latching, Lockout/Tagout provisions, and safety shielding, the Load Break Disconnect ensures safe, continuous power flow.