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Solar & Renewables

From String to Combiner.
Solar Assemblies
Built to Last.

Custom PV string wire assemblies, tracker cables, and UL508A combiner boxes — built with the same quality systems MAC applies to aerospace and defense. Made in Vandalia, OH.

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Solar Credentials:
UL Registered J-STD-001J AS9100D ISO 9001:2015 IPC/WHMA-A-620 Class 3 Made in USA

What We Build

Complete Solar Assembly Capability — String to Combiner.

MAC builds the assemblies that connect your PV array — from individual string wire assemblies and tracker cables to fully built combiner boxes ready for installation.

Solar

PV String Wire Assemblies

  • Custom PV string wire assemblies to your specification
  • MC4 and custom connector options
  • Cut-to-length with tight tolerances
  • Weatherproofing and UV-resistant materials
  • Continuity and insulation resistance testing on every assembly
  • Labeled and packaged for field installation
Solar

Tracker Cable Assemblies

  • Tracker cable assemblies for solar panel positioning systems
  • Custom length, connector, and routing specifications
  • Built to withstand field installation environments
  • Electrical testing per specification
  • Packaged to reduce site installation time
Solar

Combiner Boxes — UL508A

  • UL508A combiner box assembly
  • Custom configurations to your print requirements
  • Component sourcing and integration
  • UL listed builds for compliant installations
  • Fully tested before shipment
Solar

BOS Cable Assemblies

  • Balance of System (BOS) cable assemblies for renewables
  • Custom assemblies for inverter, monitoring, and power connections
  • Robotic and manual assembly options
  • Wire marking and labeling for system traceability
  • Flexible quantities — prototype to production runs

EPC Value Proposition

Optimized Packaging for Reduced Installation Time.

EPC contractors know that every hour of installation time is a cost. MAC packages solar assemblies for efficient field installation — organized, labeled, and ready to pull.

  • Assemblies packaged per installation sequence when specified
  • Clear labeling for circuit identification in the field
  • Pre-tested so your crew isn't troubleshooting on-site
  • Consistent lengths and tolerances across production runs
  • Flexible delivery scheduling for phased project timelines

Our Process

Specify

Confirm conductor sizing, connector type (MC4 or custom), length tolerances, weatherproofing requirements, and packaging instructions.

Build

Cut, terminate, label, and test per specification. Robotic and manual assembly options for the right quantity and lead time.

Test & Ship

Continuity and insulation resistance testing. Packaged for field installation. Delivered on schedule.

Why MAC for Solar

Aerospace-Grade Quality Applied to Every Solar Assembly.

UL508A Certified

MAC is certified to build combiner boxes and panel assemblies under UL508A requirements. If the label matters to your project, we can build it.

Same Quality as Our A&D Work

We don't run a separate quality system for solar. AS9100D processes, Class 3 workmanship standards, and 100% end-of-line testing apply across all production.

Flexible Quantities

Prototype quantities through full production runs. We scale with your project — no minimum order requirements that force you to over-buy.

Field-Ready Packaging

Assemblies packaged and labeled for EPC installation efficiency. Less time sorting, more time installing.

100% Tested

Continuity and insulation resistance testing on every solar assembly before it ships. No surprises on-site.

Made in the USA

Built in Vandalia, OH. Domestic supply chain for your renewable energy projects — no offshore risk.

UL508A Panel Assembly

Industrial Control Panel Builds to Code.

MAC is certified to build industrial control panels under UL508A — the standard for control panels used in renewable energy and industrial applications. If your solar project requires a UL508A labeled panel, we can build it.

UL508A covers: Industrial control panels, including those used in combiner boxes, inverter controls, monitoring systems, and renewable energy balance-of-system applications.

The MAC Difference

Made in USA. 50 Years. Full Cert Stack.

Solar developers and EPCs need a manufacturer they can count on — one that delivers on time, builds to spec, and backs it up with real quality systems.

  • Built in Vandalia, OH — no offshore production
  • 50 years of manufacturing precision
  • UL508A, AS9100D, IPC Class 3, ISO 9001
  • Capacity available — ready for your project
  • Flexible quantities and delivery scheduling

Ready to Discuss Your Solar Project?

Send us your specifications. We'll respond with a no-obligation quote within one business day.

Get a No-Obligation Quote →

📞 937-454-0722  |  ✉ [email protected]