Watt & Wrench

Elnuimex PV String Combiner Box with Per-String Fuses

Elnuimex PV String Combiner Box with Per-String Fuses

Elnuimex · Amazon
$110

Price as of Nov 4, 2026. Prices and availability change; check the retailer for the current figure.

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Where three or more strings land on one MPPT, NEC 690.9 wants over-current protection on each string. A combiner box does that in one enclosure instead of a fuse holder per run.

Specs

ProtectionFuse per string
Price sourcePrice read from the Amazon listing in a browser on 2026-11-04, not from PA-API. A stored figure, not a live one.