Solar Combiner Boxes Safely combine multiple solar strings with combiner boxes from PES Supply. Combiner boxes consolidate the output of several panel strings into a single feed to the inverter, providing per-string overcurrent protection and a single disconnect point. Shop trusted brands including Midnite Solar, OutBack Power, Schneider Electric, Eaton, and more. Combiner Box Features…
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About Combiner Box
Solar Combiner Boxes
Safely combine multiple solar strings with combiner boxes from PES Supply. Combiner boxes consolidate the output of several panel strings into a single feed to the inverter, providing per-string overcurrent protection and a single disconnect point. Shop trusted brands including Midnite Solar, OutBack Power, Schneider Electric, Eaton, and more.
Combiner Box Features
- String-level fusing with DC breakers or fuse holders
- Surge protection (SPD) integrated or optional
- NEMA 3R and 4X weatherproof enclosures
- Disconnect capability for safe inverter service
- Multiple string inputs (2 to 24+ strings)
- Rapid shutdown integration options
Combiner boxes are required for most multi-string solar arrays per NEC 690. They simplify wiring, protect each string individually, and provide a single point for lockout/tagout during maintenance. Choose a box rated for your system voltage (150V, 600V, or 1000V) and number of strings.
Browse the full selection below and order today with fast shipping from PES Supply. Questions? Our solar and backup power experts are ready to help you spec the right system—contact us.