Solar Standard & Smart Combiners

Standard Combiner

DST Controls’ line of both Standard and “Smart” Combiners are engineered and manufactured to the highest quality standards and thereby provide our clients with products that are safe, reliable, and easy to install and maintain. Our Manufacturing Facility is certified to build to UL-508A, UL-1741, and UL-67 standards; and we can design, build to—and provide documentation packages for—CE, IP20, and other international standards as well.

DST Controls is an ISO 9001/2008registered company, which provides our clients with the assurance that they are receiving products of the highest quality and with total traceability.

Our Smart combiners are the most configurable, accurate, and reliable in the industry—and due to their standard Modbus communications capability, they connect to, and communicate with, virtually all solar plant monitoring hardware and software being used today.

Whether your needs are for a thousand units or for a single prototype unit: please give us a call or email us with your specifications and quantities required for a price quote.

Combiner Product Features

DC Current Shunt:

  • Lowest cost method of measuring DC current under 100A
  • Easy to understand
  • No external power requirements
  • Zero output for zero current flow (no offset)
  • Field wiring is to field terminals
  • Military grade- used in military fighter jets
  • Extremely reliable under extreme conditions
  • Accuracy of (+) or (–) 0.25%
  • Shunt is separate from I/O device for ease of maintenance and troubleshooting


  • Standard- Rittal WM Series rated for NEMA Type 4 and not just 3R
  • Reflective textured paint
  • Metal with four coat proprietary paint process to prevent under creep and provide years of reliable service and protection from severe environmental conditions

Included Features:

  • Fuses are included- most of our competitors charge extra for the fuses
  • Metal locking hasp for site security
  • "Touch Safe" components for optimal safety

Available Options:

  • Certified DC disconnects
  • Wireless communications
  • I/O 24VDC power supplies
  • Field input connectors (Tyco or MC), conduit hubs, and cable glands
  • Certified transient voltage suppressors
  • Polycarbonate or fiberglass enclosures

Quality Assurance, Configuration, & Testing:

  • Documented QA on each unit
  • Photos of all units prior to shipping
  • Documented complete high pot and string current test on each unit
  • Serialized for ease of traceability and service
  • I/O modules configured and identified per the client’s specifications