DC Combiners & Disconnect Boxes
Utility-Scale & Commercial Applications
Innovative Solar Utility develops a complete line of solar combiner boxes, disconnect boxes, and balance-of-system (BOS) products engineered for utility-scale and commercial applications. Our products combine practical engineering, field experience, and application-focused design for demanding solar installations.
DC Combiners — Low Amperage
DC Combiner
Our standard DC combiners provide a flexible solution for commercial and utility solar applications, with configurations available for 1500V systems.
Features a DIN-rail mounted fuse holder design for fast string fuse replacement. A factory-installed SPD. Enclosure is NEMA 4X rated for IP66 protection.
Utility DC Combiners — High Amperage
Designed for utility-scale solar applications, ISU high-amperage DC combiners provide flexible current aggregation solutions for central inverter and other high-current PV system architectures.
Utility DC Combiner
High-amperage DC combiner solutions engineered for utility-scale PV applications and configurable to meet project-specific electrical and installation requirements.
DC Disconnect Boxes
ISU DC Disconnect Boxes provide reliable isolation solutions for utility-scale and commercial solar applications. Available in single- and multiple-disconnect configurations to support a range of project and system requirements.
DC Load Break Box — Single Disconnect
Single-disconnect solutions engineered for utility-scale and commercial solar applications, with configurations available to meet project-specific electrical and installation requirements.
DC Load Break Box — Multiple Disconnect
Multiple-disconnect solutions designed to consolidate independent disconnect positions into a single enclosure, helping simplify installation and accommodate project-specific system requirements.
Coming Soon
ISU continues to develop new balance-of-system solutions for utility-scale and commercial solar applications. The following products are planned for future introduction.
BESS Combiner
Battery Energy Storage System combiner — engineered for safe aggregation of battery module strings in commercial and utility BESS installations.
Coming SoonUtility AC ReCombiner
Utility-scale AC ReCombiner for aggregating multiple inverter AC outputs before the point of interconnection.
Coming SoonEngineering & Design Expertise
Innovative Solar Utility combines extensive solar industry experience with practical electrical and mechanical engineering. Our products are developed with a focus on reliability, installation efficiency, electrical performance, and long-term operation in utility-scale and commercial solar applications.
Codes & Product Certification
SU products are engineered for applicable electrical code requirements and are available with recognized product certifications appropriate to the product and application.
Thermal & Short-Circuit Analysis
Product designs consider electrical loading, conductor sizing, fuse ratings, bus capacity, and operating conditions appropriate to the application.
Product Safety & Reliability
ISU products are engineered with an emphasis on safe operation, dependable electrical performance, durable construction, and long-term service in demanding solar applications.
Application-Focused Engineering
ISU products are developed around the electrical, mechanical, installation, and operating requirements of utility-scale and commercial solar applications.